Troubleshooting The Pid - Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual

PID Troubleshooting

Troubleshooting the PID

Symptom
UV Lamp does not light
immediately
UV Lamp does not light
at all.
Message:
Lamp failure
No standing current
Tailing of solvent peak
Maintenance and Troubleshooting Manual
Table 15-3. PID troubleshooting table
Diagnosis
The lamp has not been used
for a long time.
Lamp not installed
Lamp not correctly installed
in the lamp holder
Lamp holder not correctly
fixed to the lamp housing
Lamp power cable
disconnected
Polarization cable
disconnected
Safety interlock circuit is
faulty
UV lamp is exhausted
Power and signal cables not
properly connected
Insufficient make-up gas flow
rate
Maintaining a Photoionization Detector
Remedy
Set
High current mode?
the lamp lights, the reset to
Install a suitable UV lamp.
Refer to the Replace the UV Lamp
Operating Sequence on page 319.
Reinstall the UV lamp.
Refer to the Replace the UV Lamp
Operating Sequence on page 319.
Tighten the two knurled screws that
fix the lamp holder to the housing.
Check the connection
Check the connection
Contact your customer support
organization.
Refer to Appendix B,
Communication, for contact
information.
Replace UV lamp.
Refer to the Replace the UV Lamp
Operating Sequence on page 319.
Check the connections of the cables
Increase the flow rate.
Chapter 15
to until
Y
N
Customer
335