Teledyne 2120 - Trace Nitrogen in Argon Analyzer - Manual (Page 51)

Trace Nitrogen in Argon Analyzer Maintenance
External electrical
interference. Shield to avoid stray fields
caused by large motors or
transformers and power
lines.
Ground shields
Recorder gain too high. Check recorder per
supplier manual.
Ionization voltage too
high. Check internal power
supply and replace if
defective.
Defective PMT. Check and replace if faulty.
Defective amplifier
board. Check and replace if faulty.
Faulty Hamamatsu PMT
socket. Check and replace if faulty.
Faulty amplifier board. Check and replace if faulty.
Faulty low-voltage DC
power supply. Check and replace if faulty.
Open high-voltage
transformer. Check and replace if faulty.
Faulty PMT. Check and replace if faulty.
Faulty analytical cell. Check and replace if faulty.
No signal or signal is too
weak.
Dirty optical filter. Clean the optical filter.
5.4 Parts Replacement and Testing Guide
WARNING: ELECTROCUTION HAZARD. LETHAL VOLTAGE
INSIDE — 6000 VOLTS.
THIS ANALYZER MUST BE SERVICED ONLY BY A
QUALIFIED TECHNICIAN.
NEVER OPERATE THE ANALYZER WITHOUT THE
COVER SECURED IN PLACE. ALWAYS TURN OFF
POWER AND DISCONNECT AC POWER CORD
BEFORE SERVICING.
Teledyne Analytical Instruments
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