How to calibrate the input on a PAXS strain gauge panel meter.

Please Note 

Recalibration should only be performed if necessary and only by qualified technicians using appropriate calibration equipment.

In some cases, The PAXS part numbers below will have a B suffix.  This just means blank, no logo on front bezel. 

APPLICABLE PRODUCTS

PAXS0000, PAXS0010, PAXS0100, PAXS0110

PRE-REQUISITES

• You will need a simulator capable of outputting between 0 and 200 mV DC.
• Calibration of this meter requires a signal source with an accuracy of 0.01% or better and an external meter with an accuracy of 0.005% or better
• For all calibrations, allow the controller to warm up for 30 minutes minimum and follow the manufacturer’s warm-up recommendations for the calibration source or measuring device

IN THIS ARTICLE

• PAXS input wiring diagram.
• Calibrating the unit to correct when the panel meter appears to be indicating incorrectly or inaccurately, even after troubleshooting with the factory.

Pressing DISP and PAR can be chosen to exit the calibration mode without any changes taking place.  

Before starting, connect -SIG (terminal 4) to COMM (terminal 5). This allows a single ended   to be used for calibration.

1. Connect the calibration signal to +SIG (terminal 3) and -SIG (terminal 4). Verify the Input Range jumper is in the desired position. Allow a 30 minute warm-up period before calibrating the meter.
2. DSP and PAR can be chosen to exit the calibration mode without any changes taking place.

 Perform the following procedure:

1. Press the arrow keys to display 9-FCS enter CODE 48 and press PAR.

2. Choose the range to be calibrated by using the arrow keys and press PAR.

 3. When the zero-range limit appears on the display, apply 0 mV between +SIG and -SIG.

4. Press PAR and ---- will appear, wait for the next prompt.

 5. When the top range limit appears on the display, apply the corresponding +SIG and -SIG voltage (20 mV or 200 mV).

 6. Press PAR and ---- will appear, on the display for about 10 seconds.

7. When NO appears, press PAR twice to exit programming.

8. Repeat the above procedure for each range to be calibrated or to recalibrate the same range. It is only necessary to calibrate the input ranges being used.

 9. When all desired calibrations are completed, remove -SIG to COMM connection and external signal source.

10. Restore original configuration and jumper settings.

ADDITIONAL INFO

PAX Analog Product Manual 

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