Maintenance and Troubleshooting | 6-79
Decimal Alarm
Bit Value Type Alarm Condition / Description and Suggested Corrective Action
5 32 Fault f: Lamp Failure
If a PMT Reference signal falls below 750 mV for 5 minutes, it indicates the lamp
has failed and requires replacement.
Corrective Action:
• From the Optical Bench Data tab, check the PMT Reference value for
each lter. If any of these signals are below 750 mV, take appropriate safety
precautions and replace the Source Lamp(s) immediately (see “Source Lamp
Replacement” in this chapter).
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