Teledyne Error Messages Model 7500ZA, Troubleshooting, Typical Error Screen Display

Error Messages Model 7500ZA

8.1 Troubleshooting

When error No. 1 occurs, remove the top cover of the analyzer and check the LED on the light source PCB. If the LED is off, then the error is caused by a light source disconnection.

Errors 1-3 and10 indicate an analyzer failure or fault. Contact TAI for assistance.

Errors 4-8 indicate that the calibration procedure may be incorrect. Check the following items, and if the error still occurs, contact TAI.

1.Is the calibration gas flowing to the analyzer?

2.Does the calibration operation match the supplied gas? (For example, zero calibration is performed while flowing the span gas.)

3.Does the supplied gas concentration match the gas concentration set in the calibration concentration setting?

Also, if errors 5 and 7 occur, you can perform calibration forcibly, following the procedure. This is used as a fault recovery when calibration fails and calibration contents are invalid or wrong.

Typical Error Screen Display

For Errors 1-4, 6, and 8-10:

Teledyne Analytical Instruments 86