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M102E/M501 TRS TROUBLESHOOTING & REPAIR
(Addendum to M101E Manual - P/N 04740 Rev A)
10. TROUBLESHOOTING & REPAIR
This section includes various troubleshooting and repair information that is either in addition to
that included in Chapter 11 of the M101E Manual (P/N 04740 Rev A)
CAUTION
The operations outlined in this chapter must be performed by qualified
maintenance personnel only.
Please read Chapter 11 of the M101E Manual (P/N 04740 Rev A) before
attempting the following trouble shooting or repair procedures
CAUTION
Risk of electrical shock. Some operations need to be carried out with the
analyzer open and running. Exercise caution to avoid electrical shocks and
electrostatic or mechanical damage to the analyzer. Do not drop tools into
the analyzer or leave those after your procedures. Do not shorten or touch
electric connections with metallic tools while operating inside the
analyzer. Use common sense when operating inside a running analyzer.
10.1.1. Fault Diagnosis with Warning Messages
10.1.1.1. M102E Warning Messages
The warning messages for the M102E are identical to those included in Section 11.1.1 of the
M101E Manual (P/N 04740 Rev A) except that there is no CONV TEMP WARNING.
10.1.1.2. M501-TRS Error Codes
The following error codes may appear on the temperature controller display of the M501-TRS
Table 10-1: Test Functions - Possible Causes for Out-Of-Range Values
ERROR
MESSAGE
CAUSE NOTES
Thermocouple burnt out or wiring between
Thermocouple and Temperature Controller is open.
Te controller process value exceeds the upper input
range set point by 5% of full scale.
When the controller process value is below the
lower input range set point by 5% of full scale.
Controller will automatically turn off the
converter heater and allow the TRS converter
to cool down.
• Check the thermocouple for shorts or
opens.
• Check the condition of the wiring between
the thermocouple and the controller.
When either the Upper or lower limit of the
input range is set improperly (e.g. Upper
limit is set to lower value than lower limit).
Controller will turn off heating element until
error is corrected.
Undefined fault in controller
Turn off M501-TRS. Call Teledyne Instruments
Customer Service.
05514 Rev A1 51