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I have a Robinair Dual Enviro Charge Model 34800 A/C Machine. I would like to know if anyone can help me with the scale calibration procedures. I know they are way off .

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Posted on Jan 02, 2017

mhkamran
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SOURCE: HOW DO YOU CALIBRATE THE SCALES ON A ROBINAR 34800...

Form the main menu go to ''CHANGE DEFAULT'' then press 5454 (old typ machine 8787 without F1 botton on key pad) & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key.now follow the on screen help text.NOTE:you should have 9KG/20LBS of weight for scale calibration.
Hope this will solve you.

Posted on May 21, 2010

mhkamran
  • 180 Answers

SOURCE: i have a robinair a/c machine cooltech i need to

Form the main menu go to ''CHANGE DEFAULT'' then press 5454 & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key.now follow the on screen text.Hope this will solve your problem.
NOTE:you should have 9KG/20LBS of weight for scale calibra

Posted on Jul 01, 2010

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the machine came with a calibration check weight in the menue you can check the calibration. if it fails contact your local service center the machines have to be calibrated with certified weights unlike the older machines.

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mhkamran.jpg Please check Charging solenoid (S3) in Solenoid manifold block, it may need to change solenoid coil or Rebuild. If charging solenoid is OK, then problem can be SCALE or MAIN CIRCUIT BOARD. See if the machine display show default charging weight 90 kg/lbs when you active CHARGE mode. If not then calibrate scale. But if default charging weight is shown then replace MAIN CIRCUIT BOARD. See attached picture to find solenoids. I wish this will help you to solve the problem. If so please vote for it for further assistance. Best of luck!

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Press main menu then press up or down arrow till scree appear ''CHANGE DEFAULT'' then press 5454 from the keypad & then YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & then press YES key. now follow the on screen text. Once you calibrate scale then press STOP key to exit.
NOTE: You should have 9KG/20LBS of weight for scale calibration. Do not change ''TANK TARE'' or any other setting it must be on factory setup.
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Robinair Model-34700Z,for scal calibration follow as bellow:
Form the main menu go to ''CHANGE DEFAULT'' then press 5454 & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key. now follow the on screen text.
NOTE:you should have 9KG/20LBS of weight for scale calibration. Do not change ''TANK TARE''. it must be on factory setup 16.30 lbs OR 7.40 kg.
Hope this will help you to solve thr problem & if my solution is useful to you please vote for it

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It seems to be your last calibration was not correct!
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Form the main menu go to ''CHANGE DEFAULT'' then press 5454 & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key. now follow the on screen text.
NOTE:you should have 9KG/20LBS of weight for scale calibration. Do not change ''TANK TARE''. it must be on factory setup 16.30 lbs OR 7.40 kg.
Hope this will help you to solve thr problem & if my solution is useful to you please vote for it

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You may have one of those problem. 1# Machine is showing wrong weight. if so you need to re-calibrate the scale. 2# Check tank ''LIQUID'' hose is connected (one of three hose on the tank which is marked with -Vapor - Air purge - Liquid ) to the tank properly, make sure it is not loss or over tight. Hope this will help you to solve the problem. if so, please vote for it. wish you good luck!

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1 Answer

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Form the main menu go to ''CHANGE DEFAULT'' then press 5454 (old typ machine 8787 without F1 botton on key pad) & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key.now follow the on screen help text.NOTE:you should have 9KG/20LBS of weight for scale calibration.
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With machine power OFF,remove old pressure transducer & replace new one.now power ON the machine & go for calibration.Calibration step for Robinair 34700Z machine.Form the main menu go to ''CHANGE DEFAULT'' then press 5454 & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key.now follow the on screen help text.NOTE:you should have 9KG/20LBS of weight for scale calibration.
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1 Answer

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