FAQ

Frequently asked questions - FAQ

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• Calibration

  Q:	Is readability and accuracy the same thing?
  A:	No, the readability of a balance is the smallest quantity that the balance will display. Accuracy is the difference between the known weight of a sample and the displayed weight. The accuracy of a balance can be measured only when the balance is in its operating environment.
  Q:	1. Can my Ohaus electronic balance be pre-programmed Example like the supermarket weighing machines which can give the total price according to the weight? 2. I would like to find out whether the balance can be programmed in such a way so that the amount of a certain drug added to a bag of infusion fluid can be "weighed" since every drug has its own specific gravity. Instead of the price per 100g, the specific gravity is used and from the weight, the amount of drug added is given.
  A:	Ohaus does not do special programming of our balances unless a lot of units are involved. The cost of programming would make small quantities very expensive. However most Ohaus balances have an RS232 output to communicate with a computer serial port. Hopefully it's possible in your application to do the special programming in a computer.
  Q:	I am unable to calibrate My Scout 200g balance because I have no calibration weights. It continues to display error 2. Is there a way to find out if a calibration will help with out buying and waiting for calibration masses.
  A:	You need to perform a linearity calibration to find out if the balance just needs a calibration or needs to be repaired. To test this you can use a roll of nickels as a substitute for a 100g mass. Nickels are pretty consistant at 5g each. In the case of a Scout displaying an error 1, a linearity calibration must be performed to find out if the problem is the calibration or the balance needs to be repaired. If an error 4 is displayed during the calibration the balance needs to be repaired. You can use the nickels in this case, but if the calibration fixes the problem you must purchase a test mass to perform a good calibration. Remember the balance is only as good as the masses used to calibrate it. You can purchase test masses directly from Ohaus. Call 1-800-672-7722 and ask for Technical Sales.
  Q:	What is the difference between a Span and a Linearity calibration?
  A:	A span calibration sets the balance at 2 points Usually zero and full capacity. A linearity calibration sets the balance at 3 points. Usually zero, half capacity and full capacity.
  Q:	How often should an Ohaus balance be calibrated?
  A:	To determine how often a balance needs to be calibrated you should first collect a history on the balance. This is done by checking the balance at a set interval and recording the results. The interval should be determined by how sensitive the application is. A good place to start may be once at the beginning of each day for non critical applications or once an hour for critical applications. When the check shows the balance is not weighing correctly it should be calibrated and the calibration noted. You can now use the history to set the intervals. This history can also be used to document and justify the intervals if you are audited.

• Instruction Manuals

  Q:	I have an old Ohaus balance. I have looked on your web site and can not find an instruction manual. Where can I find the manual for it?
  A:	You can download most OHAUS instruction manuals by going to http://DMX.ohaus.com and register. You will get a verification email. Just click on the link to go to the verification page. All you have to do is click on OK the page is filled in already. You may have to wait as much as 24 hours to be given the access you need. After that go to the site again and login. Click on the "View by Product" tab and go to the bottom of the list. Click on "Z_Obsolete Product" then on "Instruction manuals"
  Q:	I have been to DMX and I can not find the manual I need. What do I do now?
  A:	Please E-mail us at tsc@ohaus.com. Tell us you could not find the manual on DMX. We will be happy to email you a copy.
  Q:	I downloaded one of your instruction manuals and could not open it.
  A:	You can get the free Acrobat reader at http://www.adobe.com Find reader download. After downloading and installing the reader you should have no trouble reading the manual.
  Q:	How can I find an instruction manual for my scale or balance if I lost the original?
  A:	You can find the instruction manual for any scale or balance still in production by clicking manuals under the Support link on the top of the page, or by following the links on the left side of the page to the appropriate scale or balance. If these are unsuccessful please e-mail tsc@ohaus.com and we will be glad to email you a manual.

• Need service?

  Q:

  I need to send my balance in for service. Where should I send it and how should it be packed?

  A:

  The first thing you should do is contact the dealer you bought the balance from. Many Ohaus dealers also have service departments. If your dealer does not, you can contact one of our regional service centers near you. If your balance needs to be shipped to the Repair Center for repair it should be packed very carefully. Please remember the shipper is only responsible for shipping damage if the damage is evident on the packaging. Poorly packaged balances can be damaged in shipping without any visible signs of damage to the packaging, the original packaging is best. Remove all loose items such as platforms, platform supports and line cords and pack them separately. Be sure to ship them with the balance. Batteries should be removed before shipping. Include your shipping and billing address and a daytime phone number so that we can contact you. Please include a brief description of the problem you are having or the service you want performed. The package should be insured for the replacement value of the balance.

• RS232 and other outputs

  Q:	Can I enter data directly into a spreadsheet from my electronic balance?
  A:	Ohaus balances are designed to work with simple terminal programs. HyperTerminal is a program that is included with windows and works very well for this purpose, you probably already have it. In order to get information into a windows program like a spreadsheet you will need a program called a Software Wedge. Ohaus sells a very good software wedge written by TAL industries called "Software Wedge for Windows". You can get more information on this by emailing ssc@ohaus.com.
  Q:	I need a balance or scale with a 4 to 20 ma DC output. Does Ohaus make anything like that?
  A:	Our balances all have a serial output using the RS232 format and others. We have none with an analog output. There are companies that make converters from RS232 to 4 to 20 ma current loop. Try searching the web.
  Q:	Will a standard RS232 cable work with an Ohaus balance?
  A:	It depends on the model of the balance. Some of the recent models are designed to use standard cables. On older models the wiring at the balance end of the cable is specific to Ohaus, so the balance requires an Ohaus RS232 interface cable. The best thing to do is to check the instruction manual
  Q:	Can the RS232 cable I bought from Ohaus be extended?
  A:	In general yes. Problems can occur if the speed of transmission is above 9600 baud, but the cables can be extended quite a bit. If a transmission problem occurs consider lowering the speed. There is so little data coming out of a balance that the difference between 1200 baud and 9600 baud is hardly noticeable.

• Software

  Q:

  How do I use Hyperterminal to check communications?

  A:

  Hyper Terminal is a Terminal program that is bundled with Windows. To set up Hyper Terminal for use with an Ohaus balance, perform the following steps. The following assumptions are made for the purpose of explanation. 1. The computer uses Com1 2. The Balance Baud Rate is set to 2400 3. The Balance Data Bits are set to 7 4. The Balance Stop Bits are set to 2 5. The Balance Parity Bit is set to None 6. Handshaking in the balance is turned off Open the program and enter a name for the connection. You will probably want to save the setup for future use. Press OK In the next screen click on the twirl down for the "Connect using" box and select the COM port your computer uses. Click OK and the COMx properties box will be displayed. (Which COM port appears will depend on the setting in the previous step.) Set the parameters to match the parameters in the balance. See the instruction manual for the balance. The usual defaults are 2400 baud, 7 data bits, no parity, 2 stop bits and no handshake. When finished press apply then press OK. The terminal screen will be displayed. Select CALL from the menu bar and select Disconnect. The "Connected" at the bottom left of the screen will change to "Disconnected". Select FILE from the menu bar and select Properties. Select the Settings tab. Check Windows Keys and Del. At the bottom of the box click on ASCII Setup. Check the first two boxes and put 11 in the next 2. Click Ok twice. From the Call menu select Call. "Call" will be displayed at the lower left of the terminal screen. You are now ready to communicate with the balance. The best way to test the connection is to press print on the balance. Other commands are listed in the instruction manual for the balance. When the session is closed you will be prompted to save the Session. It is suggested that the session

• Adventurer

  Q:	What is the size of the draft shield on the Adventurer (AR Series) analytical balance (.1mg) models?
  A:	The dimensions are; Chamber Inside: 6 1/4" wide x 7 1/2" deep x 9 3/8" above pan Side doors: 4 3/4" wide x 9 1/2" high. Top Door: 4 5/8" wide x 6 1/4" deep
  Q:	What is the size of the draft shield on the Adventurer (AR Series) precision balance (1mg) models?
  A:	The dimensions are: Chamber inside: 7 1/2" wide x 7 1/4" deep x 7 1/2" above pan Side doors: 4 3/4" wide x 7 3/4" high. Top Door: 4 5/8" wide x 6 1/4" deep
  Q:	I am unable to send a command from the computer, like print, to the scale. I know they are communicating because when I physically push print on the scale I get a value on the computer monitor. How can I test the serial communication?
  A:	When sending a print command, an upper case P, to the Adventurer you need to terminate the command with a CR and a LF.
  Q:	When I calibrate my Adventure balance using weights accuracy class F2, sign "*" and 1500g flashes, but the display value is still increasing. This phenomenon is observed in SPAN calibration as well as in LIN procedure. The results of performance tests is good up to 400-500 grams, then after 500 g to 1500g the deviation is about 140-200 mg. Using the service manual for Adventure series, I cleaned magnet and coil only.
  A:	As long as the weights you are using have been properly maintained you should be ok in the regard. It looks to me like your balance is not accepting the calibration. This would point to a problem on the main PCB. Try swapping for a known good PCB and see if the balance calibrates. Then put the original EEPROM (socketed) in the new board. If it still calibrates the problem is on the PCB. If not you need a new EEPROM, you will have to either order it from Ohaus directly, or have a local dealer order it from Ohaus directly.
  Q:	The manual for my Adventurer balance shows that pins 5 & 8 are jumpered together (at the balance end). Documentation found on this website suggests that pins 5 & 6 are jumpered together. Which is correct? Also, if I use HyperTerminal, what do I have to do to be able to read back the weight from the scale?
  A:	Connecting pins 5 to 6 is something you have to do with most Ohaus balances. The Adventurer does not require it but it will not hurt anything. Use the following : Balance to PC(9 pin) Pin 2 to Pin 2 Pin 3 to Pin 3 Pin 7 to pin 5 No other pins need to be connected in order to communicate with HyperTerminal. In order to communicate you need to match the communications parameters with the balance and turn the handshaking off.

• Adventurer Pro

  Q:	My Adventurer Pro balance will not calibrate. It keeps displaying “Time Out” instead of finishing.
  A:	Note: 1. The second line of the display flashes to indicate action is required or the balance is working. This is normal. 2. A linearity calibration should always be followed by a span calibration. 3. If the linearity calibration will not work try a span calibration then a linearity calibration then another span calibration. Service Linearity Calibration 1. Turn the balance off. 2. Press and HOLD the On/Zero and the Tare keys until the unit turns on ( can take up to 10 seconds) as the unit powers up it will flash "Service" on the display then some other screens and finally it will display "Menu" on the first line and "ramp" flashing on the second line. 3. Press no (print key) the display will then read "menu" on the first line and "linearity" on the second line. 4. Press yes (On/Zero key) the display will read "- - 0 - -" on the first line "busy" on the second line. Wait until the display says "xxx g" on the top line "put load 1" on the second line. 5. Add the weight indicated. After a short time the display will read "xxx g" on the top line "add load 2" on the second line. 6. Add the additional weight indicated. After a short time the display will read "xxx g" on the first line, "off load 1" on the second line. 7. Remove the first weight from the balance. After a short time the balance will display "xxx g" on the first line, "off load 2" on the second line. 8. Remove the second weight from the balance. The balance will briefly display "Linear" on the first line. "done" on the second line. The balance will then display "menu" on the first line, "span" on the second. Go to step 5 below. Service Span calibration: 1. Turn the balance off. 2. Press and HOLD the On/Zero and the Tare keys until the unit turns on ( can take up to 10 seconds) as the unit powers up it will flash "Service" on the display then some other screens and finally it will display "Menu" on the first line and "ramp" flashing on the second line. 3. Press no (print key) the display will read "menu" on the first line and "linearity" on the second line. 4. Press no (print key) the display will read "menu" on the first line and "span" on the second line. 5. Press Yes (On/Zero key) the display will briefly display "- - 0 - -" on the first line "busy" on the second line. After a short time "xxx g" on the first line "put weight" on the second line. 6. Add the weight indicated. After a short time the balance will display "0 g" on the first line "clear pan" on the second line. 7. Clear the pan. After a short time the balance will briefly display "span" on the first line "done" on the second line. It will then display "menu" on the first line "end" on the second line. 8. Press yes. The balance will exit the service menu and display weight.
  Q:	Every time I turn on my Adventurer Pro balance I have to reset the time and date. I also have to turn the RS232 back on. I am using the balance on batteries is this normal?
  A:	This is normal and was done to increase the battery life. The only way to prevent it is to run the balance using the AC Adapter.
  Q:	I have followed the instructions on how to interface my printer to my Adventurer Pro. I am getting a lot of extra output that I do not need. The worst is that it prints the weight value twice. Is it possible to print only the weight that is displayed?
  A:	Yes you can simplify the printout. It will require going into the Print1 or Print2 menu and then going to the Content sub menu. In order to print the displayed value with no unit of measure. PRINT-1 MENU OUTPUT When Stable= Off OUTPUT GLP Tare= Off AUTO PRINT= Off CONTENT NUMONLY= On HEADER= Off GROSS= Off NET= Off TARE= Off REF= Off RESULT= On GLP= Off LAYOUT FORMAT= MULTI 4 LF= Off FORM FEED= Off

• AP

  Q:	My balance only reads "Error 9.7", what should I do?
  A:	Enter all the setup menus and then exit using "END" to restore all menu settings. This will clear the error.
  Q:	What are the dimensions of the draft shield? What are the dimensions of the draft shield?
  A:	The inside Chamber is 7 3/8" wide x 6" deep x 9 1/2" above pan. The side doors are 5 1/4" wide x 9 1/16" high The top Door is 6" wide x 6" deep
  Q:	When I turn on my AP balance I follow the steps below - Power ON. - Display shows CHEC252 and counts down to 59 and repeats - Then Err.8.2 displays and the keyboard hangs.
  A:	You have tried everything that can be done in the field. The balance must be returned to Ohaus. The configuration or TC data is probably corrupt.
  Q:	My AP has an error 8.2. What should I do?
  A:	First check to see if the windshield locator ring is right side up. If it is try this; 1. Unplug the balance. 2. Place a 100-gram weight on the weighing platform. 3. Plug in the power. 4. Allow the display to cycle from 250 ... Error 8.2. 5. Remove the 100 gram weight from the weighing platform. 6. Press the "ON/Tare" switch and allow the display to cycle from 250 ... Check 1. The balance will blank out the display and beep 3 times. The balance can then be turned on and used. If this does not work the balance will have to be serviced. Contact your local dealer.
  Q:	When I turn on my AP250D it starts the countdown from 250 but freezes on a number around 217 all the time. I do the routine with the 100 gram weight, and the balance will now countdown and stop on Error 8.2. When I take the mass off and press On/Tare, the display locks up on CHEC. I replaced IC18, spare part # 90664-01 IC-custom, with a new Eeprom from the local electronics shop, which lets the balance count down to Error 8.2 but it still locks on CHEC when On/Tare is pressed.
  A:	If the 100g solution does not work, the problem could be that the vertical flexure is broken. If that is not the problem look into the cal weights, something may be touching, although this usually happens during assembly rather than after a repair. The new IC you replaced has no data in it, I would expect the error in this case. This could also mean that the data (Temperature compensation and configuration) has been corrupted in your balance. If this is the case the balance will have to come back to Ohaus.
  Q:	I want to use my AP scale to perform specific gravity measurements on plastic parts. Do you have any instructions or diagrams on how to set up the balance to immerse the test specimen in water?
  A:	Ohaus sells a density determination kit for the AP series of balances. Please email ssc@ohaus.com and somebody will be happy to assist you.

• C

  Q:	How do you recalibrate Model C305?
  A:	Follow the instructions below depending on which version of the C305 you have. VERSION Version 1 plastic pan power switch on side Version 2 Metal pan power switch on side Version 3 Metal pan power switch on front panel ZERO ADJUSTMENT REQUIRES - A screwdriver small enough to fit into the hole on the side of the balance. 100g and 200g weights (for linearity calibration). 1. The balance should be off and on a level surface with the pan installed and clear. 2. The zero adjustment screw can be seen through a hole on the right side of the balance next to the ON-OFF switch on versions 1 & 2. There may be a hole plug in the hole. If so remove it. On version 3 the hole will be by itself. 3. Turn the balance on and wait until either Zero, "-----"or "Err" is displayed. 4. If the display shows "-----" skip the next step 5. Slowly turn the screw counterclockwise until "-----" is displayed 6. Slowly turn the screw clockwise until numbers are displayed 7. Repeat the 2 previous steps until the exact position where numbers first appear is located. 8. Turn the screw another; V1 - 1/2 Turn clockwise V2 - 1/4 Turn clockwise V3 - 1/2 Turn clockwise 9. Press the tare button 10. Perform the linearity calibration procedure. SPAN CALIBRATION REQUIRES one 300g weight. If this weight or equivalent is not available do not proceed. 1. The balance should be on a level surface with the pan installed. The pan should be empty 2. Turn the balance on. 3. Press and hold the Tare button until CAL is displayed then release. 4. The display will show C 0. 5. With no weight on the pan press and release the Tare button 6. The display will show C 300. 7. If you do not have a 300g weight turn the balance off now do not proceed 8. Place 300 grams on the pan 9. Press and release the Tare button. 10. The balance will display -C-. Do not disturb the balance at this time. 11. When the balance returns to normal weighing mode the calibration is complete. The display will read 300g. LINEARITY CALIBRATION REQUIRES one 100g weight and one 200g weight (to make 300g total). If these or equivalent are not available do not proceed. 1. Turn the balance off and make sure the pan is empty 2. Press and hold the Tare button while turning the balance on. Release the Tare button as soon as CAL is displayed. 3. The display will show C 0. 4. Press and release the Tare button. The display will read C 100. 5. Place 100 grams on the pan. 6. Press and release the Tare button. 7. The display will show -C- Do not disturb the balance at this time and then C300. 8. Place 300 grams on the pan 9. Press and release the Tare button. 10. The balance will display -C-. Do not disturb the balance at this time. 11. When the balance returns to normal weighing mode the calibration is complete. The display will read 300g.
  Q:	The readings drift when the scale is turned on, before anything is placed on the platform: -.002 lbs, -.004 lbs. The scale continues to drift until it is re-zeroed. I have tried replacing the batteries, and recalibrating the scale, but over time, it only seems to drift faster. Is this something that can be reset on the scale, or does it need a trip to a repair center?
  A:	It sounds like your scale has finally decided to give up the ghost. Unfortunately Ohaus no longer supports that scale; we stopped making them in 1985 and supported them until 1990. There are no longer any parts left. Take a look at the Scout Pro models on our web site at www.ohaus.com That is the most recent replacement. You may find that the newer scales have more features and will do more for you. Of course they will still weigh reliably.

• CD

  Q:	I need a program to establish communication between my CD-11 and my PC. How can I accomplish this?
  A:	You probably have a good program already in your computer. Hyper Terminal is a program that comes with all versions of windows. The indicator is programmed to work with this program. Ohaus sells a program called Software Wedge for Windows. This program will put the incoming data into any windows program.
  Q:	How can I calibrate the CD-11? The device displays Error 2 and is it possible calibrate the device without the pan or weights.
  A:	The error 2 you are getting is caused by an underload. If you are trying to use the balance without the pan that would explain it. The indicator needs some input from the platform in order to work. This is set up in the programming and can not be changed. You need weights to calibrate any scale. The scale/balance is only as good as the weights used to calibrate it.
  Q:	My CD-11 does not seem to store the setup parameters. What am I missing??
  A:	It depends on which parameters you are trying to enter. Some combinations are not accepted. Also make sure you go all the way to the end of the menu. If you do not nothing will be saved.
  Q:	I have to use the Tare button to zero the scale on my CD-11. The zero button is not functioning properly.
  A:	Your problem is probably a bad membrane switch. A regional service center should be able to take care of this.
  Q:	I am trying to get the data out of the cd-11 to a computer, connecting through HyperTerminal using the COM port. I am using a regular 9 pin RS232 cable. Will that work or do I have to buy the correct cable from you guys?
  A:	A null modem cable should work. Make sure the communications parameters are matched, and that Hyper Terminal is set up properly.
  Q:	I just interfaced our CD33 scale via RS232 and had a real problem with the default data bits selection. The default is 7 data bits but the comm. to hyper terminal or my program does not work. After switching the computer to 8 data bits it worked perfectly? It appears that no matter how I setup the scale (7 or 8 data bits) it will not work with the comm. port set at 7 data bits, however both the 7 and 8 data bit scale settings work with 8 data bits setup on the computer. Any ideas what’s up?
  A:	Due to programming bugs some combinations of baud rate and data bits do not work. As long as you have found one combination that works you should be ok. As far as I know there is no advantage to one combination over the other.
  Q:	I have an error 14 on my CD-11 and cannot find the manual that came with it! Any help?
  A:	Two things can cause error 14. The first is the zero percentage is set too low. This can be fixed in the setup menu. Just set the zero percentage to 100%. The second requires a calibration. If you need an instruction manual send an email to ssc@ohaus.com.
  Q:	We are trying to connect a computer to my CD-11 Ohaus balance; we check the serial cable and setting the balance as the manual said. I can’t receive any information with my software. Is there some software specially to do this?
  A:	Ohaus does not write any special application software. The best way to read the information from your CD-11 is to either use HyperTerminal in Windows, or an application like a software wedge. Ohaus sells a software wedge (PN = SW12W) that works very well for getting the information into a windows application.
  Q:	After I tried to change my weighing units to ounces by changing the Calibration Unit in the Setup Menu I only get error messages.
  A:	Once anything in the Setup Menu is changed the scale has to be calibrated again. The only time the Setup Menu should be entered is when a qualified calibration technician is present and going to do a calibration. What the user can do is turn on the ounces unit in the Units Menu. Then to change units of measure you would just have to press the units button on the CD11. The user can also turn off any unwanted units, Please note that the unit chosen for the calibration unit can not be turned off. Here is the step by step process. 1. Press & hold G/N/T-Menu until "Menu" is displayed. Then release it 2. The display will show "Cal" 3. Repeatedly press & release Print-Units until the display shows "Read". 4. Press & release G/N/T-Menu. 5. The display will show "RESETn". 6. Press & release G/N/T-Menu. 7. Repeatedly press & release G/N/T-Menu until the display shows"UN_____On g". 8. Press & release Print-Units to change from on to off 9. When the display shows your choice press & release G/N/T-Menu. 10. The unit of measure will change to lbs. 11. Press & release Print-Units to change from on to off 12. When the display shows your choice press & release G/N/T-Menu. 13. The unit of measure will change to oz. 14. Press & release Print-Units to change from on to off 15. When the display shows your choice press & release G/N/T-Menu. 16. The display will show "AltOff". 17. Repeatedly press & release G/N/T-Menu until the display shows "Save". 18. Press & release G/N/T-Menu the display will show "Print" 19. Repeatedly press & release Print-Units until the display shows "Quit". 20. Press & release G/N/T-Menu. 21. The unit will return to the weigh mode. In order to change the weighing unit of measure: 1. Press & hold Print-Units. 2. The Indicator will change to all the weighing units that are turned on one time. If you miss the unit you want to use release the Print-Units button and press again. 3. Release Print-Units at the one you want to use.

• Champ II

  Q:	In your literature it states that the CH100R11 can be programmed to 150kg x 0.002kg. This seems a lot of resolution for the price. Is it true?
  A:	That is a misprint in the literature. The resolution would be 75,000 points. It was meant to say that the capacity can be programmed to 150kg with the same readability of 0.02kg or 7,500 points. Remember, after reprogramming a span calibration would have to be performed.
  Q:	After I tried to change my weighing units to ounces by changing the Calibration Unit in the Setup Menu I only get error messages.
  A:	Once anything in the Setup Menu is changed the scale has to be calibrated again. The only time the Setup Menu should be entered is when a qualified calibration technician is present and going to do a calibration. What the user should do is turn on the ounces unit in the Units Menu. Then to change units of measure you would just have to press the units button on the CD11. The user can also turn off any unwanted units, Please note that the unit chosen for the calibration unit can not be turned off. Here is the step by step process. 1. Press & hold G/N/T-Menu until "Menu" is displayed. Then release it 2. The display will show "Cal" 3. Repeatedly press & release Print-Units until the display shows "Read". 4. Press & release G/N/T-Menu. 5. The display will show "RESETn". 6. Press & release G/N/T-Menu. 7. Repeatedly press & release G/N/T-Menu until the display shows"UN_____On g". 8. Press & release Print-Units to change from on to off 9. When the display shows your choice press & release G/N/T-Menu. 10. The unit of measure will change to lbs. 11. Press & release Print-Units to change from on to off 12. When the display shows your choice press & release G/N/T-Menu. 13. The unit of measure will change to oz. 14. Press & release Print-Units to change from on to off 15. When the display shows your choice press & release G/N/T-Menu. 16. The display will show "AltOff". 17. Repeatedly press & release G/N/T-Menu until the display shows "Save". 18. Press & release G/N/T-Menu the display will show "Print" 19. Repeatedly press & release Print-Units until the display shows "Quit". 20. Press & release G/N/T-Menu. 21. The unit will return to the weigh mode. In order to change the weighing unit of measure: 1. Press & hold Print-Units. 2. The Indicator will change to all the weighing units that are turned on one time. If you miss the unit you want to use release the Print-Units button and press again. 3. Release Print-Units at the one you want to use.

• CQ

  Q:	Our Digital Bench Scale is using lb, so the scale’s capacity and readability are 250lb x 0.005LB. It works ok, with weight less than 100lb. But after 100lbs it gives the wrong weight. We have tried to calibrate the scale but that changes nothing.
  A:	You are trying to use the scale beyond its rated parameters. With the capacity at 250 lbs the best readability you can expect is 0.02 lbs. Try setting it up this way and calibrating.
  Q:	After I tried to change my weighing units to ounces by changing the Calibration Unit in the Setup Menu I only get error messages.
  A:	Once anything in the Setup Menu is changed the scale has to be calibrated again. The only time the Setup Menu should be entered is when a qualified calibration technician is present and going to do a calibration. What the user can do is turn on the ounces unit in the Units Menu. Then to change units of measure you would just have to press the units button on the CD11. The user can also turn off any unwanted units, Please note that the unit chosen for the calibration unit can not be turned off. Here is the step by step process. 1. Press & hold G/N/T-Menu until "Menu" is displayed. Then release it 2. The display will show "Cal" 3. Repeatedly press & release Print-Units until the display shows "Read". 4. Press & release G/N/T-Menu. 5. The display will show "RESETn". 6. Press & release G/N/T-Menu. 7. Repeatedly press & release G/N/T-Menu until the display shows"UN_____On g". 8. Press & release Print-Units to change from on to off 9. When the display shows your choice press & release G/N/T-Menu. 10. The unit of measure will change to lbs. 11. Press & release Print-Units to change from on to off 12. When the display shows your choice press & release G/N/T-Menu. 13. The unit of measure will change to oz. 14. Press & release Print-Units to change from on to off 15. When the display shows your choice press & release G/N/T-Menu. 16. The display will show "AltOff". 17. Repeatedly press & release G/N/T-Menu until the display shows "Save". 18. Press & release G/N/T-Menu the display will show "Print" 19. Repeatedly press & release Print-Units until the display shows "Quit". 20. Press & release G/N/T-Menu. 21. The unit will return to the weigh mode. In order to change the weighing unit of measure: 1. Press & hold Print-Units. 2. The Indicator will change to all the weighing units that are turned on one time. If you miss the unit you want to use release the Print-Units button and press again. 3. Release Print-Units at the one you want to use.

• CS

  Q:	I plugged in my CS2000 and it worked for about 5 minutes. I re-zeroed it and it wouldn’t stabilize, kept bouncing 1-0-1 and then showed the startup screen. It’s been sitting on the startup screen for the past 30 minutes. No matter what buttons I push or how many interruptions in the power source it always pops up with the start up screen and stays there. I’ve tried switching from power cord to batteries. Any suggestions?
  A:	The balance needs to be repaired. On the support web page you can find a list of regional service centers.
  Q:	I’ve followed the instructions in the manual. But, no matter how many times I try to calibrate, I always get a CAL E. How can I get this scale calibrated?
  A:	The CAL E means that there is something wrong with the balance. It is not accepting the calibration information, and needs to be repaired. There is a list of regional service centers at www.ohaus.com .
  Q:	How long will the batteries last in a CS series balance?
  A:	The average battery life is 40 Hours.
  Q:	What calibration weights are required for the CS series balances?
  A:	The CS200 requires 200g. The CS2000 requires 1000g. The CS5000 requires 2000g.
  Q:	What’s the output voltage rating for the original CS-200 A/C power supply adapter?
  A:	The output is 4.5VDC @100ma, Tip negative
  Q:	Which AC Adapter can I use with my CS series balance?
  A:	It depends on how old your balance is. There are two versions of the CS series: The first version V1 had a cal button with the legend "cal/unit". The AC adapter for this version is Ohaus number 80500457. The voltage is 4.5 VDC and the tip of the adapter is negative. The second version V2 has a cal button with the legend "unit/cal". This version uses Ohaus part number 90524-66. This is also used on the LS, Scout and Navigator balances. The voltage is 9 VDC and the tip of the adapter is positive.
  Q:	My CS has all 88888888´s on the screen and I just put new batteries in. What should I do?
  A:	Make sure the battery contacts are making contact with the battery terminals. If they are, take the batteries out and let it sit overnight, and if the problem still persists the scale will need to be serviced.
  Q:	I have an Ohaus CS200 and when I turn it on the display readout never stabilizes. It goes up and down tenths pretty randomly and never stabilizes. I know it isn’t and I tried to correct this by following the instructions but I always get an error. Any suggestions of what is going on?
  A:	Make sure you removed the red plastic shipping block. It slides out the rear. Carefully look under the pan for any debris that may have found its way in there. If the area is clear the scale will have to be repaired. Send it to any one of our regional service centers listed in the support section of our web site at www.ohaus.com.

• CT

  Q:	How do I turn on other units of measure?
  A:	Follow the set up procedure in instruction manual that came with the scale. Find the unit selection section and turn on the units you want to use. You must step through to END to save changes or the scale will not use the units you have turned on.
  Q:	How do I know which version of the CT I have?
  A:	Version 1 of the CT balance has the power switch on the right side and has buttons on the display panel. Version 2 has the power switch also on the side and a gray function label. Version 3 has the power switch on the front of the balance.
  Q:	How do I adjust the zero on my Version 1 or Version 2 CT balance?
  A:	CT V1 V2 ZERO ADJUSTMENT 1. The balance should be turned OFF, on a level surface, and the pan must be installed. 2. The zero adjustment screw can be seen inside the hole located on the right side of the balance, closest to the ON/OFF button. If there is a hole plug in the hole, remove it to expose the adjustment screw. 3. Turn the balance ON and wait until zero, "Err 1 or "Err 2" is displayed. If "- - -" is displayed, skip the next step. 4. SLOWLY turn the screw clockwise until "- - -" is displayed. 5. SLOWLY turn the screw counterclockwise until numbers appear on the display. 6. Repeat steps 4 and 5 until the exact position where numbers first appear can be determined. This point must be accurately determined otherwise the balance may become erratic during operation. 7. Once this position is determined, turn the screw an additional 1/2 turn in the same counterclockwise direction. 8. Remove the screwdriver and press the tare button. 9. Perform the linearity calibration procedure.
  Q:	How do I perform a linearity calibration on my Version 1 or Version 2 CT balance?
  A:	CT V1 V2 Linearity Calibration CALIBRATION POINTS linearity Cal Points CT10 5g, 10g CT200 100g, 200g CT600 300g, 600g CT1200 500q, 1000g CT6000 3000g, 6000g Calibration Button The calibration button can be seen inside the hole located on the right side of the balance, closest to the front. If there is a hole plug in the hole, remove it to expose the calibration button. You must be able to push the button through the hole. Linearity Calibration Two calibration weight values are required to perform the linearity calibration procedure. Before beginning this procedure, allow the balance to warm-up for about 5 minutes. Make sure the weights are available. 1. Make sure the balance is OFF and all weight is removed from the pan. 2. To start linearity calibration, press and hold the calibration button while switching the balance ON. Use a long narrow object such as a small screwdriver or pencil to press the calibration button. 3. When the calibration button is released, "C 0g" will appear on the Display indicating that no weight should be on the pan. 4. With no weight on the pan, press and release TARE. 5. When TARE is released, "-C-" will be displayed briefly, then "C" followed by the value of the first weight which must be placed on the pan. The value displayed indicates the total weight which must be on the pan. (If multiple weights are used, their total combined weight must be equal to the displayed value. Stack multiple weights one on top of the other to keep Weight centered on the pan.) 6. DO NOT disturb the balance when "- C -" is displayed. The balance is waiting for a stable weight reading and disturbances will result in improper calibration. 7. Place the required weight on the pan, and then press TARE. 8. When TARE is released, the display will show "-C-" briefly, then "C" followed by the value of the second weight which must be placed on the pan. 9. Place the second weight on the pan, then press TARE When TARE is released, "-C-" will be displayed while the balance recalibrates itself. 10. DO NOT REMOVE THE WEIGHT(S) AT THIS POINT. When the balance returns to the normal weighing mode (the Unit Indicator will appear), linearity calibration is completed and the weight(s) can be removed.
  Q:	How do I perform a linearity calibration on my Version 3 CT balance?
  A:	CT Series V3 Linearity Calibration If you have entered the Calibration menu and do not wish to calibrate the balance, use END to return to normal weighing operations. Repeatedly press OFF-MODE until END is displayed. Press ON-TARE and release. The balance will return to normal weighing operations. Required Calibration Masses If the required masses are not available exit calibration mode until they are available. Linearity Cal Points CT10 5g 10g CT200 100g 200g CT600 300g 600g CT1200 500g 1000g CT6000 3000g 6000g Linearity Calibration Press and hold ON-TARE until CAL is displayed, then release. The balance will display SPAN. Press OFF-MODE and the display will show LIN. Press and release ON-TARE. The balance will display C 0g indicating that no mass should be on the platform. Press ON-TARE and release The display will show -C- followed by the value of the mass which must be placed on the platform. Place the required mass on the platform. Press ON-TARE and release. The display will show -C- then C followed by the next mass to be placed on the platform. Do not disturb the balance when -C- is displayed. Disturbances will result in improper calibration. Place the required mass on the platform. Press ON-TARE and release. The display will show -C- while the balance recalibrates. When the mass on the platform is displayed along with the current unit indicator, the balance is recalibrated.
  Q:	My CT series scale displays err 0 after being turned on. Then it reads 0.0 but will not weigh anything. What should we do?
  A:	The first thing to try is a LINEARITY calibration. The instructions are in the manual. If the calibration does not work the balance will have to be replaced.
  Q:	My Portable Advanced CT-200 is displaying an error 7. What does this mean and is there anything I can do to fix it?
  A:	Error 7 means that the power on zero is out of an acceptable range. This could be caused by a load on the platform or a problem with the transducer. If there is no load on the platform you can try a LINEARITY calibration. If that does not work the balance will have to be replaced.
  Q:	What is the accuracy of the CT200 balance?
  A:	The accuracy of any measuring device is defined as the difference between the known value of a sample and the actual reading from the device. In the case of balances the accuracy can only be determined when the balance is set up where it is going to be used. The environment and the process contributes as much to the accuracy as the balance does. This is why we can not give a figure.
  Q:	My CT-200 displays Error 1, is there anyway to fix this?
  A:	Try doing the LINEARITY calibration in the instruction manual. If this does not fix the problem the balance will have to be replaced.
  Q:	How exactly do you use HyperTerminal to acquire data from the CT 200? I have constructed a cable according to instruction on other posts. I set up the connection in HyperTerminal but nothing happens. Is there anything I may be overlooking?
  A:	1. Make sure the cable is plugged in the right way. The balance end of the cable is different from the PC. 2. The Baud, data bits, stop bits and parity must be matched. 3. Is your computer com port working?
  Q:	My CT1200 scale, like the other portable scales in my lab, suddenly stopped working. Could it be a problem with the scale or the converter plug?
  A:	If all of the balances in your lab have stopped working your problem is your power source. If not it could be either the AC adapter or the balance. The best way to find out is to substitute another adapter. If you do not have one, try using batteries. If the adapter is not the problem the balance will have to be replaced.
  Q:	My CT1200-S zeros OK, but the weight it displays is way too high. What is wrong? Can I calibrate it myself? Does it have to go to the shop for repair/calibration?
  A:	First of all are you sure the units are in grams. Different units of measure will sometimes give results that seem erroneous. You will need a manual in order to calibrate. If you do not have the manual just send an email to ssc@ohaus.com requesting it.

• Defender 3000

  Q:	I want to use lbs as my unit of measure and my defender 3000 is set to kg.
  A:	T31p, T31XW. Setup for additional units of measure. In order to use units other than the default setting in the indictor they must be turned on in the units menu (see below). Then when you press and release the UNITS button the display will cycle through the units you have turned on. Release the button when the unit you want to use is displayed Turning on or off additional units Press and hold the Menu button until the display shows C.A.L. then release it. The display will show C.A.L. Repeatedly press and release the No button until the display shows U.N.I.T. The display will show U.N.I.T. Press and release the Yes button. The display will show RESET. Press and release No The display will show UNIT kg Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT kg Press and release No The display will show UNIT lb Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT lb Press and release No The display will show UNIT g Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT g Press and release No The display will show UNIT oz Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT oz Press and release No The display will show UNIT lb oz Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT lb oz Press and release Exit. When you return to the weigh mode the unit will still be in Kg. Press and hold the unit button and the display will cycle through the units that are turned on. Release the button when the unit you want is displayed.
  Q:	I just received a Defender bench scale D31XW30VR and it did not have the shipping tabs (red) that I am used to. Is this a problem?
  A:	The series of platform that is part of your bench scale is no longer shipped with the shipping tabs in place.
  Q:	I need a replacement indicator for my 1000lb hopper scale. I am looking at a T31P is this the best choice?
  A:	The T31P is missing one important feature that a hopper scale should have. It will not retain the zero information if the power is lost or the indicator turned off. The T51P would be a better choice in this case. Then if you loose power the indictor will retain the zero information and you will not have to empty the hopper to start over.

• Defender 5000

  Q:	How can I get my Defender 5000 indicator (T51P or T51XW) to print without inserting an extra line feed? I am using a label printer with preprinted labels and every other label is wasted.
  A:	You can do this by going into the menu under Print1 or Print2 and setting the format to Single.
  Q:	Ok now I am printing a single label but there is too much information. I am still using a T51P.
  A:	Again go into the Print1 or Print 2 menu. You can turn off all the heading and GLP information you need too. You can also turn off the Gross, Net and Tare printing and just leave the result. You also have the option to print the result as a number only by setting it to NUM. This will eliminate the unit of measure.
  Q:	I am using a 7000 series Defender indicator (T17P) and I can not clear the accumulator. I have followed the instructions in the manual but it does not clear.
  A:	Press and hold the "info" button until the display shows "StatS". Then press the "CLR" button to clear the accumulator.

• Defender Scales and Indicators

  Q:

  I want to use lbs as my unit of measure and my defender 3000 is set to kg.

  A:

  T31p, T31XW. Setup for additional units of measure. In order to use units other than the default setting in the indictor they must be turned on in the units menu (see below). Then when you press and release the UNITS button the display will cycle through the units you have turned on. Release the button when the unit you want to use is displayed Turning on or off additional units Press and hold the Menu button until the display shows C.A.L. then release it. The display will show C.A.L. Repeatedly press and release the No button until the display shows U.N.I.T. The display will show U.N.I.T. Press and release the Yes button. The display will show RESET. Press and release No The display will show UNIT kg Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT kg Press and release No The display will show UNIT lb Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT lb Press and release No The display will show UNIT g Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT g Press and release No The display will show UNIT oz Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT oz Press and release No The display will show UNIT lb oz Press and release Yes to see the setting. The display will show either ON or OFF. Press and release No to change the setting or Yes to accept it. The display will show UNIT lb oz Press and release Exit.

• Dial-O-Gram

  Q:	My dial-o-gram balance will zero out when the pan is empty, but I placed a 1oz. weight on it and tried to get it to balance at 28.3 gr. I could not do it. With the weight set on 20 grams mark it would not balance when the dial was turned to its fullest extent. When the weight was set at 30 grams it would not balance at the dial being set at zero. This occurred when I used other test weights.
  A:	Check that all the poises (sliding weights) are to the left and in their notches. Make sure the tare poise is all the way to the left. If all that is true and the balance still does not work it will have to be repaired. Check with the dealer you bought the balance from first.
  Q:	When I am returning the weights to the left of my older 4-beam 311 gram balance, without a source in the pan, the balance will not come off the bottom right without help. Once I touch it, it will come up and zero. I`ve used air to clean it, and used tape on the magnets as discussed in the tutorial, but it continues to occur. Any suggestions?
  A:	Look for something sticking when the beam is all the way up. Is the vane sticking at the top or bottom of its travel? You may want to consider having the balance rebuilt.

• DS

  Q:	What is the price of my DS scale and is it still available? Also how would I locate an owner’s manual?
  A:	The DS series is no longer sold by Ohaus. It was replaced by the ES series which can be seen in the product section on this web site. An instruction manual can be found on the Ohaus webpage or you can get one by emailing ssc@ohaus.com.

• E

  Q:

  My E400 balance keeps displaying an error, and it was recently bumped. I would like to calibrate it, how can I do so?

  A:

  You probably just need to perform a linearity calibration. You will need (2) 200g weights to do this. LINEARITY CALIBRATION PROCEDURE 1. Turn the balance ON and allow it to warm-up, with no weight on the pan, for at least 30 minutes. 2. Turn the balance OFF. 3. Press and hold the ON/TARE switch until the balance displays -C- then release. 4. The display will show CO indicating that no weight should be on the platform. 5. Press and release the ON/TARE switch. 6. The balance will display a number which corresponds to the value of the calibration weight, which should be placed in the center of the pan. 7. Place the displayed calibration weight on the center of the pan. If the required weights can not be located press the off switch to save the existing calibration do not proceed with the calibration. 8. Press and release the ON/TARE switch. 9. The balance will display a number which corresponds to the value of the second calibration weight, which should be placed in the center of the pan. 10. Place the calibration weight on the center of the pan. If the required weights can not be located press the off switch to save the existing calibration do not proceed with the calibration. 11. Press and release the ON/TARE switch. 12. Wait until the balance displays the indicated calibration weight value. This indicates that the balance is now calibrated. If this procedure does not work the balance is probably broken and needs to be replaced. Ohaus no longer supports this balance

• EC

  Q:	Is there easier way to get the APW loaded into an EC Counting Scale than sampling. I know the weights and do not want to take the time.
  A:	Enter the Average Piece Weight (APW) on the keyboard. Then press APW. You can clear what you have entered by pressing the clear button.

• ES

  Q:	I put weight on the pan of my ES Bench Scale and nothing comes up on the display. What Should I do?
  A:	Check the connection between the load cell & the indicator. If the problem persists try to perform a calibration. If the problem still persists the scale must be sent in for service.
  Q:	How can I tell if my ES portable bench scale can be repaired?
  A:	There are 2 versions of the ES series scales. The first version was not repairable and can be identified by the legend on the indicator. It will say ES50, ES100 etc. There are no repair parts available for these scales. The second version is repairable. It can be identified be the ES Series legend on the indicator and may have a connector at the indicator. Repair parts are available for these scales.

• Explorer

  Q:	What are the inside dimensions of the draft shield used on the Explorer and Voyager balances?
  A:	For the original Explorers and Voyagers the inside of the chamber is 7 1/2" wide x 7" deep x 9 3/4" above pan. The side doors are 5 3/4" wide x 9 1/2" high. The top door is 6 3/4" wide x 5 3/4" deep For the current version Explorer Pro and Voyager Pro the inside of the chamber is 7 1/16" wide x 5" at door to 7" at center deep (Arched rear) x 9 1/4" above the pan. The side doors are 5" wide x 9 1/4" high. The top door is 5 1/2" wide x 5 1/2" deep.
  Q:	I am using the Explorer scale. We have a large box on the scale (with some of the box extending off of the scale tray in all directions) a mass is attached, and then removed. When we add the mass, approximately 4000g, the scale does not find a stable value. Also, the scale does not return to zero once the mass is removed. Furthermore, the time required for the scale to settle at its final value (which isn’t zero) is quite large and negatively affecting our data acquisition.
  A:	The varying readings could be caused by air currents acting on the mass. The first thing to do is to eliminate any modifications you have made as the problem. I am referring to the large "box". Try removing it and performing the same tests? This will tell you if the scale or the modifications are at fault. If the scale is at fault it will need to be serviced.
  Q:	I want to control my explorer balances from a single computer through serial ports. Some of my serial ports are the 25 pin type. I´ve used a standard adapter to convert the ports to 9 pin but this doesn`t seem to work. Can I control my balance from my computer?
  A:	First check the cable itself. The output connector on the balance is unique and needs a cable either from Ohaus or wired as shown in the manual. Your balance will communicate directly with a terminal program similar to Hyper Terminal in Windows. You can also communicate directly with a windows application by using "Software Wedge For Windows", sold by Ohaus, the part number is SW12W
  Q:	We have an explorer balance and some samples have been yielding slightly above the capacity of the scale, at which point the scale stops sending data to the PC, and does not resume until the weight drops below the capacity again. Is there any way to have the balance keep printing to the pc in the overweight state? Also, is there any way to upgrade our scale?
  A:	There is no way to get the balance to output in the overweight state. The only way to solve your problem is to increase the capacity of the balance. This will require a new balance.
  Q:	I have tried unsuccessfully to use an existing serial printer with our Ohaus Explorer balance. The printer works fine on a variety of other balances.
  A:	The printer should work if it will receive ASCII text in an RS232 format. The problem may be the cable. The balance end is unique to Ohaus balances. The cable must be wired as shown in the manual. Another problem may be caused by the printer sending a signal to request the balance to output. Ohaus balances need a "P" + CR + LF to send the displayed information. The other manufacturer's balance may need something else. This is programmable in many printers.
  Q:	I have Navigator and Explorer balances and would like to interface them with my lab computer. I notice you put up some wiring diagrams from other balances. If I make one cable, will it work with both balances and what should the pin assignments be on the balance and the computer end? Should I cross the 2 and 3 pins, and the 5 and 6 pins?
  A:	Below are the two cable configurations that will work with 9 pin and 25 pin serial ports. You will notice that pins 2 and 3 are not crossed in the 9 pin but are in the 25 pin. In any case pins 5 and 6 have to be shorted at the balance end of the cable. One cable type will work with both balances. Ohaus Part number - AS017-09 Used with AP, AS, C, CT, E, G, GT, I5, TP, TS, MB200, Adventurer, Explorer, Voyager, Navigator and Scout. Cable - balance to PC 9 pin(F) to 9 pin(F) Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 2 (RXD ) PIN 3 (RXD) -----to----- PIN 3 (TXD) PIN 7 (GND) -----to----- PIN 5 (GND) For balances other than Adventurer pins 5 & 6 must be shorted together at the balance and NOT connected to the computer. This is not required in the Adventurer balances. Ohaus part number - AS017-02 Used with AP, AS, C, CT, E, G, GT, I5, TP, TS, MB200, Adventurer, Explorer, Voyager, Navigator and Scout.
  Q:	When I send the command IC (Internal Calibration) to my Ohaus Explorer Balance with HyperTerminal, it displays the message INCAL but it doesn’t complete the calibration. I want to read the weight on the balance from my computer. The internal calibration works fine when I do it manually. How can I calibrate my balance from my computer?
  A:	The "IC" command was put in the instruction manual by mistake. The command does not exist in the unit. In order to calibrate the unit you need to use either the "C" for a span calibration or the "L" for a linearity calibration. And supply external weights.
  Q:	Are the cable or RS232 interface for these balances non-standard? Can anyone supply information on purchasing the proper cable or a compatible printer and cable?
  A:	Yes the wiring on the Ohaus balance is non-standard. The connections are in the instruction manual. We offer a cable (PN AS071-09 for 9 pin serial ports) and (AS017-02 for 25 pin serial ports). Check the configuration of the connector on your printer. If you need more information contact us at ssc@ohaus.com.
  Q:	I have an Explorer which I am trying to get to work with the Balance Talk software. The software works fine with my Adventurer AR1140 but not w/ my Explorer.
  A:	It sounds like you are the wrong cable which may work with the other manufacturers balance but will not work with the Explorer. The wiring of the Explorer at the balance is not standard. The wiring you need is below. Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 2 (RXD) PIN 3 (RXD) -----to----- PIN 3 (TXD) PIN 7 (GND) -----to----- PIN 5 (GND) Pins 5 & 6 must be shorted together at the balance and NOT connected to the computer.
  Q:	My Explorer E1D120 balance is sending information to the computer as it should, however the keypad on the balance is nonfunctional when it is connected to the computer. This includes the PRINT button. Only commands sent from the computer work (until I unplug the cable from the balance or the computer).
  A:	Try reversing the cable. You probably have the balance end plugged into the computer. It should be marked either balance or scale.
  Q:	I am trying to set up a scale with an RS232 cable to my pc. It will not show the weight, it just shows zeros. Are there special settings for the com port?
  A:	Here are some general instructions. You may also have a problem with software compatibility. The balance will only recognize the commands listed in the instruction manual. If you do not have your manual you can get one by emailing techsupport@ohaus.com The cable must either be purchased from Ohaus or wired by the user. Standard cables from computer stores will not work with Ohaus Galaxy, GT, E, TS, TP, CT, Scout II, Navigator, Explorer, Voyager or Adventurer balances. Once the cable is acquired the software must be selected. The balance will work with any standard terminal software. Hyper Terminal in Windows is a good example. You probably already have it. By using an additional program called a software wedge the data can be placed in any windows application. Ohaus sells a program called "Software Wedge for Windows" that works well for this purpose. The next step is to setup the communications parameters. The settings are optional but must be the same on the balance as on the computer/printer. They are: Baud - Ohaus default = 2400 Data Bits - Ohaus default = 7 Stop bits - Ohaus default = 2 Parity - Ohaus default = none Handshaking is not used so none should be selected. Other settings are usually optional. When the print button is pressed on the balance the data from the screen should be printed on the computer screen or printer, along with any other print option that is turned on. See the balance instruction manual for these options.
  Q:	What does Error code 8.0 on an Explorer balance mean?
  A:	The error 8.0 means that there is a problem with the hardware. Either a bad PC board or something wrong with the transducer. The balance will have to be serviced. Please look at the Regional Service Centers.

• G analytical

  Q:	I have a G analytical balance scale and it measures 25% above the actual weight. I have tried calibrating it various weights but it is still the same. What can I do?
  A:	If the linearity calibration did not solve the problem there may be something wrong with the transducer. Unfortunately this balance is too old to be repaired. Production ended on this series in 1986.
  Q:	For a calibrated G160 what are the manufacturer's specifications for accuracy and tolerance?
  A:	The precision of the G160 balance is +/- 0.0001g (STD DEV) and the linearity is +/- 0.0003g according to the instruction manual.
  Q:	What is the procedure for calibrating a G analytical balance?
  A:	1. Remove the plug from the access hole on the right side of the balance as viewed from the front. 2. Press the ON/OFF switch and let the balance warm up for at least an hour. 3. Select the weighing range you want to calibrate by pressing the RANGE switch. Both ranges must be calibrated independently. 4. Press the RE-ZERO switch to get a stable zero reading. 5. Insert a pointed object into the access hole and press the activator spring of the switch. "C" and the busy symbol will be displayed. 6. Place either a 40g or a 200g weight on the balance, depending on the range, and wait for the letter "C" to flash 3 times and either 40.00000g or 200.0000g to be displayed. There will also be an audible signal to alert the user that the calibration is complete. 7. Remove the calibration weight and zero will be displayed. 8. Return the plug to the access hole. Caution - The balance will assume the weights used are exactly 40.00000g and 200.0000g and calibrate accordingly. The accuracy of the balance will only be as good as the weights used. The internal weights are compensated to calibrate the balance so that it will meet specs.

• GT

  Q:	My scale is set to ounces and I need to have it measure in grams.
  A:	In order to display a unit it must be turned on in the SEL menu under the USER menu. To enter the menu: 1. Press and hold the ON button until the display reads MENU then release. 2. The display will read CAL. 3. Press and release the MODE button until the display reads USER. 4. Press and release the ON button. 5. Press and release the MODE button until the display reads SEL. 6. Press and release the ON button. 7. The display will read a unit and either ON or OFF. Use the mode button to change the display and the ON button at accept the choice and go on to the next unit. 8. Make sure the unit you want is ON. 9. The display will eventually read SEL again. 10 Press and release MODE until the display reads END USER. 11. Press ON. Now when you press the MODE button all of the units you have turned on will be choices. If you need an instruction manual please email ssc@ohaus.com. We will be glad to send you a manual by return email.
  Q:	My GT scale is giving an Err 9.9. The instruction book is missing. Does anyone know what an Error 9.9 means?
  A:	The balance has lost it's temperature compensation data. It will work using default data, but it should be serviced.
  Q:	What is the pin configuration for the GT series balances? It`s the nine pin female to female RS232 cable that runs from the balance to the PC.
  A:	The pin connections are below for both a 9 pin and a 25 pin serial port. Part Number AS017-09 Used with AP, AS, C, CT, E, G, GT, I5, TP, TS, MB200, Adventurer, Explorer, Voyager, Navigator and Scout. Cable - balance to PC 9 pin(F) to 9 pin(F) Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 2 (RXD) PIN 3 (RXD) -----to----- PIN 3 (TXD) PIN 7 (GND) -----to----- PIN 5 (GND) Pins 5 & 6 must be shorted together at the balance and NOT connected to the computer Part Number AS017-02 Used with AP, AS, C, CT, E, G, GT, I5, TP, TS, MB200, Adventurer, Explorer, Voyager, Navigator and Scout. Cable - balance to PC 9 pin(F) to 25 pin(F) Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 3 (RXD) PIN 3 (RXD) -----to----- PIN 2 (TXD) PIN 7(GND) -----to----- PIN 7 (GND) Pins 5 & 6 must be shorted together at the balance and NOT connected to the computer.
  Q:	I am communicating with my GT410 balance via RS232 and a PC and I can read data with the maximum rate of 7.6 Hz. Is it possible to read data with the higher rate?
  A:	If you are already using the highest baud rate and the continuous output option. That is as fast as it gets.
  Q:	Our GT scale displays error 9.6 when turned on. And mode displays strange characters, like parts of letters missing.
  A:	The GT balance you have is very old. It sounds like you may need a display which is no longer available. It might be best to consider replacing the balance.
  Q:	What does the error message 8.0 mean on my GT scale?
  A:	The error 8.0 means that either the pan is missing or wrong. If the platform is correct there is a problem inside the balance and it should be serviced. Unfortunately the GT balance you have is very old. It might be best to consider replacing the balance.

• Hand Held

  Q:	What calibration weights do I need to calibrate my HP120 or HP320 balance?
  A:	For the HP120 you will need 100g. For the HP320 you will need 200g.
  Q:	How can I calibrate my HS120?
  A:	The HS120 balance is calibrated at the factory and should not need recalibration. Make sure that you are testing the balance with certified weights which can be obtained by emailing ssc@ohaus.com. If it is out of calibration it will need to be serviced. Please see the list of Regional Service Centers under support.
  Q:	How can I calibrate my HP120 or HP320 Hand Held balance?
  A:	Cal weight for HP 120 = 100g Cal weight for HP 320 = 200g 1. Turn the unit on and let it warm up (2 minutes) 2. Press and hold the "Cal/Units" key until the calibration weight flashes on the display. 3. When the calibration weight flashes press the "Off" key. The display will read "AL O". 4. Wait at least 2 seconds then place the calibration weight on the platform. 5. The display will momentarily show "AL F" (If the display shows "AL E" there has been an error and the procedure should be done again) and then return to active weighing. 6. Calibration is complete when the display correctly shows the calibration weight and the display has stabilized. "AL E" can be caused by using the wrong calibration weight or doing the steps out of order.
  Q:	When I turn on my HP320 scale it displays an E...and it will not weigh anything. I have tried to recalibrate it but when I hold down the cal/units button nothing happens.
  A:	The E... means that either the wrong mass is being used or the balance needs to be repaired. Please see the Regional Repair Centers under support.
  Q:	I have over loaded my balance, how do I know if it has been damaged by over loading?
  A:	The best way to tell if a balance is working properly is to test it using a test mass. Test masses are available as individual pieces and in sets from Ohaus by emailing ssc@ohaus.com.
  Q:	When I turned on my hp320, only the top half of the digital readout works. How can I fix this problem?
  A:	The LCD has given out. Depending on when you bought the balance it may still be covered under warranty. The best idea is to send it to Ohaus or one of our Regional Service Centers (see support page) to be repaired. You will need to provide a proof of purchase.
  Q:	I accidentally stepped on my scale and now when it turns on it seems normal until it just says E on the display. Can it be fixed? Is there anything I can do?!
  A:	You can send it in and try. Pick a regional service center under the support menu. Stepping on the balance is not covered under the warranty. The "E" indicates that the balance can no longer be calibrated.
  Q:	My HP120 is giving inaccurate readings. I am getting combined readings that are off by as much as 4 grams. This overweighing error is repeatable over many trials. I have even tried turning the scale off, then on to see if that would produce the correct combined reading, but it doesn’t. I am still getting inaccurate readings. Worse, I don’t know which one is correct, the 2 single readings, or the combined total reading of both lots together. How can I fix this problem?
  A:	Try doing the calibration in the instruction manual. If that does not help, the balance should be repaired. See the list of Regional Service Centers under support.

• I-10

  Q:	The problem I now have is that our older Ohaus I10 scales do not allow selection of 8 data bits (7 is default and unchangeable as far as I know). This means I need different software (or different setup) for the two scales which makes it more difficult for our written ´setup and operation´ procedures. Is there any way to fix the problem in the scale?
  A:	Unfortunately, due to a lot of uncontrollable circumstances there is no way to fix this problem. Possible the 7 data bits will work with another baud setting.

• I-150

  Q:	On my indicator the weight on the display slowly decrements and it doesn`t stop (I have a simulator connected). Do I need to replace the mother-board?
  A:	Make sure the simulator is connected properly. Make sure the internal jumpers are all correct. Go through the setup and double check everything. Replacing the main PCB is a last resort.

• I20W

  Q:	Why is there a buzzing sound coming from the unit?
  A:	This may be caused by a damaged or defective LCD. The indicator should be replaced.

• I5S

  Q:	All I get is a reading of Error 21, what could be wrong?
  A:	Possibly only calibration. You may have lost all of the calibration parameters. Check all of the settings and recalibrate.
  Q:	My Indicator only reads "Error 14", what should I do?
  A:	Ensure that the zero % parameter in the setup menu is set to 100%. If that doesn't work, the indicator will have to be replaced.
  Q:	When weighing the display shows dashes when weight is over a 1.5 lb to 2 lbs. What is the problem?
  A:	You probably have either an overload or underload condition, the instruction manual will tell you which. Try going through the setup and then performing a calibration. If that does not work the balance may have a bad transducer. In that case a repair may be needed. Unfortunately Ohaus no longer supports this product.

• MB200

  Q:	I can’t get a print-out with my Model MB200 moisture analyzer. I’ve tried several dot matrix printers, changed printer cables several times, and expect the 9 pin/25 pin cable relationship to be wrong. Does OHAUS sell the correct printer cable?
  A:	The output from a MB200 is ASCII text in a serial RS232 format. It is not compatible with a standard parallel printer. There are printers available that will work with serial inputs. Ohaus offers one, the 80252042 which works nicely with the MB200. The other problem may be the cable. The balance end of the cable is not standard. We do offer cables for many connections.
  Q:	What is the pin configuration for the serial port for an MB200?
  A:	The pin connections are - PIN 2 (TXD) PIN 3 (RXD) PIN 7 (GND) Pin 5 (CTS) Pin 6 (DTR) In order for the balance to output data pin 5(CTS) must be held high. This can be done by shorting it to pin 6(DTR) which is always high at the balance. Neither pin 5 or 6 can be connected to the computer in this case.
  Q:	After I calibrate my MB200 and set up to dry a sample, the heating coil doesn`t heat up. The fuses and thermocouple are fine. I can hear the activation switch when I close the drying hood? What can be the problem?
  A:	There could be many reasons. One of the wires going to the coil may be open. The cable going to the thermocouple could be open. The over temperature switch could be defective. There could be a problem in the control circuit. If you are not a trained service person you should have the balance repaired. You may be able to get help from the dealer you bought the balance from. If not see the list of Regional Service Centers under Support.
  Q:	We hooked up the serial cable to the balance with the PC according to the manual`s directions. The data sending from the scale to PC is OK, but the P+LF+CR command is sometimes not received by the balance. When this happens, if the P+LF+CR command is sent several times the balance eventually received and responds with the scale`s reading.
  A:	The first thing to try is reducing the baud rate. Then try another com port on the same computer. Then try another computer. If the problem remains there is something wrong with the balance. You can also try substituting another balance if you have one. NOTE: if the balance receives a signal it is not programmed to handle it will return an ES to the terminal.

• MB45

  Q:	What is the use of % regain on MB45 machine?
  A:	It is used in the US by the wood and paper industries and possibly more that I am not aware of. The difference is the way the calculation is done. % Moisture loss = (wet mass - dry mass)/wet mass % Moisture regain (ATRO) = (wet mass - dry mass)/dry mass As you can see one tells you the percentage of moisture based on the original mass (wet) and the other gives you the percentage based on the actual weight of the dry sample without water.
  Q:	When I use the Regain display on my MB45 I get negative results. I do not think this is possible.
  A:	A software bug has been discovered that causes the result to be displayed with a negative sign in front of it. The calculation is correct if you ignore the negative sign.

• Navigator

  Q:	When I turn on my Navigator balance I get the error code 8.3 screen. The legs are missing from my scale...could this be the problem? If so where can I purchase new legs?
  A:	The feet can be purchased by contacting Ohaus. It may be worth the investment in the feet to see if it works. If that is ineffective you can send the balance to an Ohaus regional repair center. We will give you a free estimate before any work is done.
  Q:	I have Navigator and Explorer balances and would like to interface them with my lab computer. I notice you put up some wiring diagrams from other balances. If I make one cable, will it work with both balances, and what should the pin assignments be on the balance and the computer end? Should I cross the 2 and 3 pins, and the 5 and 6 pins?
  A:	Below are the two cable configurations that will work with 9 pin and 25 pin serial ports. You will notice that pins 2 and 3 are not crossed in the 9 pin but are in the 25 pin. In any case pins 5 and 6 have to be shorted at the balance end of the cable. One cable type will work for both the Navigator and Explorer balances. Ohaus Part number - AS017-09 Used with AP, AS, C, CT, E, G, GT, I5, TP, TS, MB200, Adventurer, Explorer, Voyager, Navigator and Scout. Cable - balance to PC 9 pin(F) to 9 pin(F) Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 2 (RXD) PIN 3 (RXD) -----to----- PIN 3 (TXD) PIN 7 (GND) -----to----- PIN 5 (GND) For balances other than Adventurer pins 5 & 6 must be shorted together at the balance and NOT connected to the computer. This is not required in the Adventurer balances. Ohaus part number - AS017-02 Used with AP, AS, C, CT, E, G, GT, I5, TP, TS, MB200, Adventurer, Explorer, Voyager, Navigator and Scout. Cable - balance to PC 9 pin(F) to 9 pin(F) Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 3 (RXD) PIN 3 (RXD) -----to----- PIN 2 (TXD) PIN 7(GND) -----to----- PIN 5 (GND) For balances other than Adventurer pins 5 & 6 must be shorted together at the balance and NOT connected to the computer.
  Q:	I am trying to calibrate the Navigator by referring to the manual. It appears that I need a 1kg or 2kg weight. Do you know where I can purchase them?
  A:	You can order the masses you need from Ohaus by emailing ssc@ohaus.com.
  Q:	When I turn it on my Navigator balance I get an error 8.4 underload. If I try to calibrate immediately after turning it on, it won’t calibrate but gives and error 3.0 incorrect calibration mass, then it goes to weigh mode and displays -663 grams. Can I save it?
  A:	You have one of two problems. Either your transducer is damaged or a production calibration needs to be performed. Either way you will need to send the balance for repair. There is a list of Regional Service Centers under Support on our web site.

• PBI

  Q:	I would like to disable the Kg function of our Benchmaster PBI to allow only use of lb. readings. How can this be done?
  A:	The Kg function can not be defeated in the PBI indicator. If it is causing a problem the only suggestion I can offer is to put it in the lb mode and remove the switch. Make sure first that it will power up in the lbs mode. This should only be attempted by someone that has some experience soldering and unsoldering. Be very careful. The PBI indicator can no longer be repaired. It has been out of production for 10-12 years.
  Q:	I need replacement parts for a PBI-M Benchmaster, can I order them through Ohaus?
  A:	The PBI is an old model indicator that is obsolete. There are no longer parts available from Ohaus.

• Pioneer

  Q:	When I turn off the Auto-Zero on my Pioneer balance it still seems to zero small weights. Am I doing something wrong?
  A:	Probably not.  Due to a glitch in the software, you have to unplug the unit from the power after turning off the Auto-Zero in the setup menu. Make sure you turn the balance off first. When you plug it back in and turn it on, it should respond to small weights.

• Printer, Compact Thermal, STP-103 (80251992)

  Q:	My Ohaus Explorer Pro, AP Series, Adventurer or Scout Pro will not work with the 80251992 (STP-103) Compact Thermal Printer and the cable I bought with it.
  A:	The first thing to do is to check the cable. The part number printed on the cable should be 80500540. The kit part number you ordered should have been 80252580. Notice that one end of the cable is marked "scale end". This end must be plugged into the balance. For a Scout Pro you have to purchase the RS232 option and an Adapter Ohaus part number 80251930.
  Q:	My Ohaus Adventurer Pro, Discovery, Pioneer, Ranger, Ranger Count, T31P indicator, T51P indicator, T71P indicator will not work with the 80251992 (STP-103) Compact Thermal Printer and the cable I bought with it.
  A:	The first thing to do is to check the cable. The part number printed on the cable should be 80500532. The kit part number you ordered should have been 80252581. The printer defaults are 9600 baud, 8 data bits, no parity and 1 stop bit. The parameters settings in the balance must agree. Refer to your balance instruction manual in the RS232 section for help. You can also email ssc@ohaus.com. The moisture balances must be running a test before it will print.
  Q:	My Ohaus MB35 or MB45 will not work with the 80251992 (STP-103) Compact Thermal Printer and the cable I bought with it.
  A:	The first thing to do is to check the cable. The part number printed on the cable should be 80500532. The kit part number you ordered should have been 80252581. The printer defaults are 9600 baud, 8 data bits, no parity and 1 stop bit. The parameters settings in the balance must agree. These are the defaults in this balance so the balance should work without any programming. The moisture balance must be running a test before it will print.
  Q:	My Ohaus CD31, CD33, CD11, Trooper or Trooper Count will not work with the 80251992 (STP-103) Compact Thermal Printer and the cable I bought with it.
  A:	The first thing to do is to check the cable. The part number printed on the cable should be 390200-00. The kit part number you ordered should have been 80252583. The printer defaults are 9600 baud, 8 data bits, no parity and 1 stop bit. The parameters settings in the balance must agree. Refer to your balance instruction manual in the RS232 section for help. You can also email ssc@ohaus.com.

• Printer, Dot Matrix, CBM-910 (80252042)

  Q:	My Ohaus Explorer Pro, AP Series, Adventurer or Scout Pro will not work with the 80252042 (CBM-910) printer and the cable I bought with it.
  A:	The first thing to do is to check the cable. The part number printed on the cable should be 80500540. The kit part number you ordered should have been 80500570. Notice that one end of the cable is marked "scale end". This end must be plugged into the balance. For the Scout Pro you have to purchase the RS232 option and an Adapter Ohaus part number 80251934. The next thing to check is the communications parameters set in the printer. To do this you will need to lift out the paper roll and look at the row of 8 white switches under it. Viewing from the front they are numbered 1 to 8 from left to right. They need to be set like this. Move 1 & 2 toward you; move 3 & 4 away from you, move 5 toward from you, move 6 away from you and move 7 & 8 toward you. This will set the parameters to the balance defaults which are 2400 baud, 7 data bits, no parity and 2 stop bits that are the default settings in this and most other Ohaus balances. Put the paper roll back in place and try to print. If the SEL light blinks the paper roll is not placed right or is too light and needs to be replaced. The balance should now print.
  Q:	My new Ohaus Adventurer Pro, Discovery, Pioneer, Ranger, T31P indicator, T51P indicator or T71P indicator will not work with the 80252042 (CBM-910) printer and the cable I bought with it.
  A:	The first thing to do is to check the cable. The part number printed on the cable should be 80500532. The kit part number you ordered should have been 80252571. The next thing to check is the communications parameters set in the printer. To do this you will need to lift out the paper roll and look at the row of 8 white switches under it. Viewing from the front they are numbered 1 to 8 from left to right. They need to be set like this. Move 1 & 2 toward you, move 3 & 4 away from you, move 5 toward from you, move 6 away from you and move 7 & 8 toward you. This will set the parameters to the balance defaults which are 2400 baud, 7 data bits, no parity and 2 stop bits that are the default settings in this and most other Ohaus balances. Put the paper roll back in place and try to print. If the SEL light blinks the paper roll is not placed right or is too light and needs to be replaced. The balance should now print.
  Q:	My new MB25 or MB23 will not work with the 80252042 (CBM-910) printer and the cable I bought with it.
  A:	While using a moisture balance you can only print while a test is being run. Make sure you are running a test whenever you check the printing. The first thing to do is to check the cable. The part number printed on the cable should be 80500532. The kit part number you ordered should have been 80252571. The next thing to check is the communications parameters set in the printer. To do this you will need to lift out the paper roll and look at the row of 8 white switches under it. Viewing from the front they are numbered 1 to 8 from left to right. They need to be set like this. Move 1 & 2 toward you, move 3 & 4 away from you, move 5 toward from you, move 6 away from you and move 7 & 8 toward you. This will set the parameters to the balance defaults which are 2400 baud, 7 data bits, no parity and 2 stop bits that are the default settings in this and most other Ohaus balances. Put the paper roll back in place and try to print. If the SEL light blinks the paper roll is not placed right or is too light and needs to be replaced. The balance should now print.
  Q:	My new MB45 or MB35 will not work with the 80252042 (CBM-910) printer and the cable I bought with it.
  A:	While using a moisture balance you can only print while a test is being run. Make sure you are running a test whenever you check the printing. The first thing to do is to check the cable. The part number printed on the cable should be 80500532. The kit part number you ordered should have been 80252571. The next thing to check is the communications parameters set in the printer. To do this you will need to lift out the paper roll and look at the row of 8 white switches under it. Viewing from the front they are numbered 1 to 8 from left to right. They need to be set like this. Move 1 through 6 toward you, move 7 away from you, move 8 toward you, This will set the parameters to the balance defaults which are 9600 baud, 8 data bits, no parity and 1 stop bit that are the default settings in these balances.
  Q:	I just received a replacement printer for my SF42. The part number is 80252042 and the label says it is a CBM-910. Can I use the adapter that I still have from my Sf42 as a spare?
  A:	No! The polarity of the new printer is opposite the old one. If you plug the old one in it will destroy out the printer and void the warranty. You should never swap AC adapters.

• Ranger

  Q:	When attempting to calibrate my Ranger balance, the scale would not allow entering cal. I attempted several times to "unlock" via the unlock switch, according to the manual. The scale does not respond to this. Is there any other way to bypass the lock to access the parameters?
  A:	You must hold the button until the turn on cycle returns to the segment check. If you are doing that there is something else keeping the balance from resetting. The balance will have to be either replaced or serviced.
  Q:	Are there other feet available for the Ranger 6lb. scale without cavities so they can be used in the food industry?
  A:	See the FD series. This is a new series of scales approved for the food industry.
  Q:	How can I tell which version of the Ranger I have.
  A:	Look at the display. There is an Ohaus logo either to the right or left of the display. Version 1 displays the logo on the right and is red on black. Version 2 displays it on the left and is red on white.
  Q:	I can not get my Ranger count (or count plus) to weigh I any other unit of measure except the one displayed when it turns on.
  A:	When using the new Ranger Count or Count Plus units the unit of measure can be toggled by pressing the Weight/Count button. If a count is displayed pressing this button will toggle the display between the count, Unit 1 and Unit 2

• s200

  Q:

  My scale displayed ERROR 1, it was briefly fixed by calibrating with 200g weight but now I am getting an ERROR 2 display. What information do I need to fix the problem and what calibration weights are needed?

  A:

  There are two versions of the S200. First you have to determine which version you have: S200 Versions (V1)-on/off switch is black button on the right side. Tare button is Blue. Function label is black. You may have to do a zero adjustment before the calibration will hold. (V2)-on/tare & off buttons on function label. Gray function label. Calibration points Span = 200g Linearity = 100g & 200g V1 Zero Adjustment (If Required) 1. The zero adjustment screw is located on the side of the balance and is in the closest hole to the On/Off button. 2. Turn the balance on and wait until either "---", "Err 1" or "Err 2" is displayed. If "---" is displayed proceed to step 4. 3. Turn the screw clockwise until "---" is displayed. 4. Slowly turn the screw counter-clockwise until numbers just appear. 5. Turn the screw 1/2 turn further counter-clockwise. 6. Remove the screw driver and press Tare. 7. Perform a linearity calibration. V1 Span Calibration 1. The calibration button is located on the side of the balance and is the farthest from the On/Off button. 2. With the power on press the calibration button. 3. When the button is released the display will read "C 0g" 4. With no weight on the pan press TARE and release. 5. The display will read "-C-" briefly than "C 200g". 6. Place 200g on the pan and press TARE. 7. The display will read "-C-" "200g". 8. The balance is calibrated. V1 Linearity Calibration 1. The calibration button is located on the side of the balance and is the farthest from the On/Off button. 2. With the power off press the calibration button and hold it while turning on the balance. 3. When the button is released the display will read "C 0g" 4. With no weight on the pan press TARE and release. 5. The display will read "-C-" briefly than "C 100g". 6. Place 100g on the pan and press TARE. 7. The display will read "-C-" briefly than "C 200g". 8. Place 200g on the pan and press TARE. 9. The display will read "-C-" briefly than "200.00g". 10. The balance is calibrated. V2 Span Calibration 1. With the power on press and hold the ON/TARE button until "Cal" is displayed then release it. 3. When the button is released the display will read "C 0g" 4. With no weight on the pan press ON/TARE and release. 5. The display will read "-C-" briefly than "C 200g". 6. Place 200g on the pan and press ON/TARE. 7. The display will read "-C-" and then "200.00g". 8. The balance is calibrated. V2 Linearity Calibration 1. With the power off press and hold the ON/TARE button until "Cal" is displayed then release it. 2. When the button is released the display will read "C 0g" 3. With no weight on the pan press ON/TARE and release. 4. The display will read "-C-" briefly than "C 100g". 5. Place 100g on the pan and press ON/TARE. 6. The display will read "-C-" briefly than "C 200g". 7. Place 200g on the pan and press ON/TARE. 8. The display will read "-C-" and then "200.00g". 9. The balance is calibrated If the calibrations do not work the balance needs to be replaced. Neither version is supported by Ohaus.

• Scout

  Q:	My scale only reads "Error 1", what should I do?
  A:	First check the down stop as below, And then try a linearity calibration below. If these steps do not clear the error the balance will have to be serviced. Down stop checking and adjustment this will require a 5/64 Allen key: 1. Place 100% capacity mass on the pan. 2. Gently press down on the pan there should be slight movement, if not got to step 5. 3. Place 150% capacity mass on the pan. 4. Gently press down on the pan, there should be no movement. If there is no movement the adjustment is OK. If there is movement proceed to step 5. 5. The adjustment screw is located in a hole visible in the center of the platform support to the left of the screw that holds down the support. A small Allen wrench is used to make the adjustment. Adjust 1/8 turn at a time and retest. Scout Linearity Calibration: 1. Start with the balance off 2. Press and hold the REZERO ON button until MENU is displayed then release. 3. Repeatedly press MODE OFF until LIN is displayed 4. Press REZERO ON and release 5. - C - will be displayed followed by C XXX where XXX is the value of the mass which must be placed on the pan. 6. Do not disturb the balance while -C- is displayed. 7. Place the required mass on the pan and momentarily press REZERO ON. 8. - C - is displayed, then C YYY where YYY is the value of the second mass to be placed on the pan. 9. Place the required mass on the pan and momentarily press REZERO ON. 10. When the weight on the pan is displayed with the stability indicator (*), the balance is calibrated.0 11. When Linearity calibration is completed, the balance automatically exits the menu and stores any changes you have made.
  Q:	When I calibrate my scale it displays Error 4, what does that mean? How do I fix it?
  A:	Error 4 means that the load cell is probably bad. There are replacement load cells available for all Scout models. Just email ssc@ohaus.com, they will give you part numbers, prices and terms. In some cases you will have to unsolder, move and re-solder an 8 pin IC socket. You can also send the balance to a regional service center or the factory for repair.
  Q:	I use Scout balances and about every so often one fails with an error 4 message which usually means it needs a new transducer. Do you sell replacement parts for these balances?
  A:	There are replacement transducers available for all Scout models. Just email ssc@ohaus.com, they will give you part numbers, prices and terms. In some cases you will have to unsolder, move and re-solder an 8 pin IC socket.
  Q:	We went through the calibration steps indicated for receiving the ERR 1 message. After that we get ERR 4. Can we still fix it?
  A:	This is an indication that the transducer needs to be replaced. Please see the list of Regional Service Centers Under Support.
  Q:	My scale is displaying Err 9, what does this mean?
  A:	The error 9 on your Scout means that the balance needs to be serviced. The internal programming has become corrupted. This can be caused by an internal problem or a problem with the power at the point of use.
  Q:	My Scout’s digital read out has started to go wild. I plug it in, turn it on and the read out just starts displaying various numbers -- even though nothing is on the scale. (Sometimes this starts right away when the scale is turned on; sometimes it takes a while for it to happen.)
  A:	The balance needs to be repaired. See the list of Regional Service Centers under Support.
  Q:	For the scout portable scale, the AC adapter is 9VDC, 200mA. Is it a negative or positive tip?
  A:	The tip is positive. I should warn you that using an AC adapter not supplied by Ohaus may void your warranty.
  Q:	When I want to use the grams unit, I press mode to change it but grams doesn’t show up. How can I use grams?
  A:	1. Start with the unit off 2. Press and hold ZERO/ON until MENU is displayed. 3. Press and release MODE/OFF repeatedly until UNITS is displayed. 4. Press and release ZERO/ON to display the grams indicator with its current setting ON or OFF. 5. To change the displayed setting Press MODE/OFF. 6. To accept the displayed setting press ZERO/ON. 7. Repeat steps 5 and 6 for each weighing unit. When the last unit has been accepted the display will be UNITS. 8. Press and release MODE/OFF repeatedly until the display reads END. 9. Press and release ZERO/ON. The balance will return to the weigh mode. Now you can press the MODE/OFF switch to change to the units you have turned on.
  Q:	We need to know the cable connection for the Scout scale. We also need the Output String format of the weight string.
  A:	The pin connections are: PIN 2 (TXD) PIN 3 (RXD) PIN 7 (GND) Pins 5 & 6 must be shorted together at the balance and NOT connected to the computer The output string is: 12 Characters Weight 1 Character Space 5 Characters Units 1 Character Space 1 Character Stability Indicator 1 Character CR 1 Character LF

• Scout Pro

  Q:	I turn on the RS232 like it says in the manual, but every time I turn the balance off it comes back on with the RS232 set to off. I am using my balance on batteries.
  A:	When using balances with SR 1.14 or less in order to extend battery life the RS232 is set to OFF every time the balance is turned on. If you use the AC adapter that came with the balance the RS232 will stay on. This was changed in subsequent versions to leave the RS232 on.
  Q:	My RS232 also goes off when I turn my balance on. I am using the AC adapter I used with my old Scout balance.
  A:	The AC adapter used with the old Scout balances was 9 VDC. The Scout Pro uses a different AC adapter (12 VAC). In order to know the AC adapter is being used the software looks for the AC, with the old adapter it only sees DC so it thinks the unit is on batteries and turns the RS232 off. You need to use the adapter that came with the balance. This is only true in balances with SR 1.14 or less, this was changed in subsequent versions to leave the RS232 on.
  Q:	I also have a problem with the RS232 going off. I am using the AC adapter that came with the unit.
  A:	The third reason for the RS232 to turn off is the way the menus are exited. After turning the RS232 on you must continue to END in the RS232 menu. After that you must go to E.N.D. in the main menu. If you do that the option should stay on.
  Q:	When I took my balance out of the box and tried to weigh the test weight the 200g weight only weighed 175g. I tried to calibrate and there was no menu at all.
  A:	Usually a balance will need calibration right out of the box due to shifts in the earth's gravity, but yours is too far off to explain it that way. Take off the weighing platform and look for the shipping lock. It is a small blue or red circle with a pointer that will point to either an open padlock or a locked padlock. For normal use point it toward the unlocked padlock. The mass should now weigh closer to 200g. In order to access the menus you will need to locate another lockout switch. Turn the balance over and near the front edge you will see a slide with the same unlocked and locked padlocks. Make sure the slide is pushed to the unlocked padlock. You will now be able to access the menus following the instructions in the manual.
  Q:	I purchased an external display for my Scout Pro and it does not work. What is wrong?
  A:	The TAD07 external display will only work with Scout Pro units with software version greater that 1.21.
  Q:	When I turn on my Scout Pro I get an error 2 on the display and it will not do anything else.
  A:	A:  There are a few things that can cause an error 2. In order to clear it the first thing to try is a linearity calibration. The instructions are in your manual. If you see an error 4 during the linearity calibration your balance needs repair. Chances are the load cell has been damaged. If the linearity calibration was successful (no error 4) and the error 2 persists you can try a service calibration. Here are the steps" 1. Turn the balance off. 2. Press and hold both buttons until the display shows rAMP then release. 3. Press and release the PRINT-Unit button 4. The display will show Lin 5. Press and release the ON/Zero-Off button 6. The display will show -C- blinking and then the first calibration mass. 7. Place the mass on the balance and press the ON/Zero-Off button 8. The display will show -C- blinking and then the second calibration mass. 9. Place the mass on the balance and press the ON/Zero-Off button 10. the display will show -C- blinking, then Done, then Lin again. 11. Press and release the PRINT-Unit button repeatedly until the display shows End" 12. Press and release the ON/Zero-Off button 13. The balance will return to the weigh mode. If the error 2 still persists the balance will have to be serviced
  Q:	I tried to order a replacement main PC board for my Scout Pro and was told I needed to know the serial number. Why, aren’t they all the same?
  A:	The serial number (SN) is needed to determine which version of the Scout Pro you have. There are 2 versions for certain models and in order to sell you the correct parts we need to know what we are dealing with. Sometimes the Software Revision (SR) is also needed. So far there are 2 versions of 3 models. SP401 Version 1 ends with SN 7126510374 Version 2 starts with SN 7126510375 SP601 Version 1 ends with SN 7126510374 Version 2 starts with SN 7126510375 SP6000 Version 1 ends with SN 712910309 Version 2 starts with SN 712910310

• SD Shipping Scale

  Q:	I know that my SD scale has the ability to use dynamic weighing but I can not turn it on.
  A:	In order to use the dynamic weighing (animal weighing) mode the unit button must be pressed and released repeatedly until the unit (lb or kg) is displayed along with a dot roughly in the center. In order to turn the dynamic weighing mode off again the units button must be pressed and released repeatedly until the unit (lb or kg) is displayed with no dot.

• TP

  Q:	My balance only reads "Error 8.1", what should I do?
  A:	Attempt to recalibrate the balance. If that is not successful, then the balance needs replacing.
  Q:	My balance only reads "Error 8.0", what should I do?
  A:	Attempt to recalibrate the balance. If that is not successful, then the balance needs replacing.
  Q:	I have a TP400D, and would like to use it to count electronic components. I noticed there’s a communications port in the back of the scale and was wondering if I can use it to count through a PC interface through this port. If so, is there any software available for this application?
  A:	The TP400D has an internal counting mode and an interface that will connect it to a computer. You can count using the balance and then output the results to the computer. The interface will work directly with a communications program or you can use Software Wedge for Windows (Ohaus part number SW12W) to put your results into any windows program. You will need an Ohaus cable (AS017-09 for a 9 pin serial port or AS107-02 for a 25 pin serial port). The wiring at the balance end of the cable is not standard so you can not use an off the shelf cable.

• Triple Beam

  Q:	How easy is it to find parts for my triple beam?
  A:	The triple beam balance is still made by Ohaus. Unless this is a very old model parts should still be available. You can email ssc@ohaus.com to make sure.
  Q:	The silver piece at the end of the balance is rubbing against the magnets, how can I fix this?
  A:	You can bend the silver piece without damaging the scale, or you can move the post. Either remedy should solve this problem.
  Q:	I need a formula or calculation method for determining the volume of an object by weighing it in water and out of water. I understand the procedure using a triple beam but I need the formula for calculating the volume in CC.
  A:	The volume of a mass is determined by subtracting the wet weight from the dry weight. This will give you an answer in grams. In the metric system 1g (H20) = 1 ml (H2O) = 1 CC (H2O). There is a factor because the density of H2O is not actually 1 but this will work for all practical purposes.
  Q:	What is the "e" value for a triple beam balance? I don’t believe that e= d is correct.
  A:	"e" is assigned when a balance is submitted for government approval. It is typically 10 x d. "d" being the smallest readable division on the balance. The Ohaus triple beam balances have not been submitted for approval so an e value has not been assigned.
  Q:	I lost the "label" which indicates the weight increments on the .01 gram scale, and the vertical label which appears on the right side of the balance which calibrates it to "0". Are replacement labels available?
  A:	Yes, the parts are available. Just email ssc@ohaus.com, they will be happy to help you.

• Trooper

  Q:	I am having trouble trying to zero the weight of my large containers on my TR6RS. I have set the zero percentage in the setup menu to 100% but that did not help.
  A:	A software bug has been discovered that does not allow zeroing more than a very low percentage of capacity. This is being fixed. For the present you can use the Tare button to subtract the weight of your containers.

• TS

  Q:	My balance only reads "Error 8.1", what should I do?
  A:	Attempt to recalibrate the balance. If that is not successful, then the balance needs to be replaced.
  Q:	How can I tell which version of the TS balance I have?
  A:	1. Look at the display as the balance is turned on. If the left most digit is a 1 you have version 1 or 2. If it is an 8 you have version 3. 2. On version 3 there is a small square cutout for the menu lock out switch under the balance on the right side (looking from the front) just in front of the feet.
  Q:	What calibration weights do I need for my TS balance?
  A:	TS Cal Points - Use ASTM class 1 Masses Linearity (use masses totaling) TS120S(V1) = 50g,100g TS200S(V1) = 100g,200g TS400S = 200g,400g TS400D(V1) = 50g,400g TS400D(V2,3) = 40g,400g TS600S(V1) = 200g,500g TS2K(V1) = 1kg,2kg TS4KS(V1) = 2kg,4kg TS4KD(V1) = 500g,4kg TS4KD(V2,3)= 400g,4kg Span (use masses totaling) TS120S(V1) = 100g TS200S(V1) = 200g TS400S = 400g TS400D(V1) = 400g TS400D(V2,3)= 400g TS600S(V1) = 500g TS2K(V1) = 2kg TS4KS(V1) = 4kg TS4KD(V1) = 4kg TS4KD(V2,3) = 4kg
  Q:	How do I perform a calibration on my TS (Version 1, or Version 2) balance?
  A:	TS Version 1 & 2 Span Calibration While the balance is displaying "-C-" do not disturb it. 1. With the power on push and hold ON/TARE until "Cal" is displayed then release. 2. "C 0g" will be displayed. 3. Leave the pan empty and press and release ON/TARE. "-C-" will be displayed. 4. "C" and a number will be displayed. The number is the weight to place on the pan. 5. Place the weight on the pan and press and release ON/TARE. "-C-" will be displayed. 6. When the balance returns to the weighing mode the calibration is complete. Linearity Calibration While the balance is displaying "-C-" do not disturb it. 1. With the power off push and hold ON/TARE until "Cal" is displayed then release. 2. "C 0g" will be displayed. 3. Leave the pan empty and press and release ON/TARE. "-C-" will be displayed. 4. "C" and a number will be displayed. The number is the weight to place on the pan. 5. Place the weight on the pan and press and release ON/TARE. "-C-" will be displayed. 6. "C" and a number will be displayed. The number is the weight to place on the pan. 7. Place the weight on the pan and press and release ON/TARE. "-C-" will be displayed. 8. When the balance returns to the weighing mode the calibration is complete.
  Q:	How do I perform a calibration on my TS (Version 3) balance?
  A:	TS Version 3 Span Calibration While the balance is displaying "-C-" do not disturb it. 1. Press and hold ON/TARE until "CAL" is displayed then release it. 2. The balance will display "SPAN". 3. Press and release ON/TARE. 4. "C 0g" will be displayed 5. With an empty pan press and release ON/TARE, the balance will display "-C-" 6. The balance will then display "C XXg" where XX is the next weight that must be placed on the balance. 7. Place the requested weight (XXg) on the balance. 8. Press and release ON/TARE, the balance will display "-C-". 9. When the balance returns to the weighing mode the calibration is complete. TS Version 3 Linearity Calibration While the balance is displaying "-C-" do not disturb it. 1. Press and hold ON/TARE until "CAL" is displayed then release it. 2. The balance will display "SPAN". 3. Press and release OFF/MODE. 4. The balance will display "LIN". 5. Press and release ON/TARE. 6. "C 0g" will be displayed 7. With an empty pan press and release ON/TARE, the balance will display "-C-" 8. The balance will then display "C XXg" where XX is the next weight that must be placed on the balance. 9. Place the requested weight (XXg) on the balance. 10. Press and release ON/TARE, the balance will display "-C-". 11. The balance will then display "C XXg" where XX is the next weight that must be placed on the balance. 12. Place the requested weight (XXg) on the balance. 13. Press and release ON/TARE, the balance displays "-C-" 14. When the balance returns to the weighing mode the calibration is complete.
  Q:	I am receiving an error message 8.0 on my TS4KS, how do I fix this problem?
  A:	If the pan and pan support are on and are the correct ones for the balance, the balance needs to replaced.
  Q:	My balance turns itself off after a very short time, no errors, any ideas? If parts are needed, can I install them myself
  A:	It sounds like there is an electrical problem. The repair parts for this balance are no longer available. It is time to think about replacing it.

• Voyager

  Q:	The density calculations based upon hand & computer calculations seem to be incorrect. Parts at 100 grams have an error of .01 & at 800g the error increases to .1 Is there any way to correct this?
  A:	The Voyager takes the water density into account there is also a factor for the temperature. If you are not taking this into account it could explain the difference.
  Q:	I have a Voyager top loading balance. The Auto Sample option works with volumes of 1.0 mL (~1.0 g). However, when I use Auto Sample with volumes less than 1.0 mL, this feature does not work; I have to press ENTER to advance to the next sample. Why?
  A:	The Voyager is programmed so that 100d is the lower limit set to initiate the Auto Sample feature. In your balance 100d is 1.00g in the lower range.
  Q:	I`m trying to connect my Ohaus Voyager Balance to my PC using the Ohaus BalanceTalk program. I understand that the failed connection is a hardware problem due to improper cable connection. I was wondering if anybody knew what the pin to pin configuration for the Ohaus Voyager Balance was.
  A:	Here they are: For a 9 pin serial port Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 2 (RXD) PIN 3 (RXD) -----to----- PIN 3 (TXD) PIN 7 (GND) -----to----- PIN 5 (GND) For balances other than Adventurer pins 5 & 6 must be shorted together at the balance and NOT connected to the computer For a 25 pin serial port Balance pin -----to----- PC pin PIN 2 (TXD) -----to----- PIN 3 (RXD) PIN 3 (RXD) -----to----- PIN 2 (TXD) PIN 7(GND) -----to----- PIN 7 (GND) For balances other than Adventurer pins 5 & 6 must be shorted together at the balance and NOT connected to the computer