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Troubleshooting
Leak Testing
6-4
PDM3700 Instruction Manual
Thermo Fisher Scientific
Pump and Heaters ON Test
WinPDM Instrument
Diagnostics
Cause Solution
AIR TEMP
Heater Defective
Contact TFS service.
AMBIENT PRES
Defective Sensor
Contact TFS service
AMBIENT TEMP
Defective/Disconnected
Sensor
Check connection.
CLOCK
Defective Component
Contact TFS service
DIFFERENTIAL PRESSURE
Filter missing or needs to be
changed.
Flow blocked
Defective Sensor
Change filter.
Clean sample line.
Contact TFS service
FREQUENCY
Mass Transducer not
installed.
Filter not installed
Mass Transducer damaged
Install Mass Transducer
Check for filter
Contact TFS service
NO MASS TRANSDUCER
Mass Transducer not
installed
Install Mass Transducer
RH SENSOR
Defective Sensor
Contact TFS service
RH TEMP
Defective Sensor
Contact TFS service
TE TEMP
Heater Defective
Contact TFS service
FLOW RATE (VOLTS)
Pump
Contact TFS service
TILT Z
Defective Component
Contact TFS service
BATTERY VOLTS
Charger Off
Battery Low
Charger Defective
Battery Defective
Turn Charger On
Charge Battery
Change Charger
Change Battery
The leak test is split into two separate sections:
●
Sample Path – Instrument Plumbing
●
Case – Battery Compartment
In order to perform a case leak check the instrument must first pass the
sample path leak check. See the Maintenance section for directions to
perform the leak tests.
Leak Testing