Universal Analyzers 1095E Instruction Manual page 16

Troubleshooting
Column malfunction
(not cooling)
High system vacuum
Low sample flow
RTD failure
High ambient temperature
THE PRESENCE OF WATER IN LIQUID FORM AFTER THE SAMPLE COOLER IS AN INDICATION OF A
FAULT IN THE SYSTEM. REASONS FOR THE PRESENCE OF CONDENSATE IN THE SYSTEM AFTER
THE SAMPLE COOLER COULD BE ONE OR MORE OF THE FOLLOWING:
1. Overloading of the cooling capacity of the cooler due to too much water vapor in the sample OR too great a sample
flow rate.
2. The condensate removal equipment (peristaltic pump, eductor, or drain pot) may be faulty. The heat exchanger(s)
may be full of condensate.
3. An air leak may be in the condensate removal system allowing air to enter and blow the condensate back into the heat
exchanger. (This assumes the heat exchanger is under a slight vacuum.)
4. The temperature of the air passing through the cooler to cool the heat sink is too high. This could be due to placement
of the cooler in a tightly sealed box.
MAN.1095E.REVB.12232014
Peltier devices not functioning
System inlet vacuum >5" HG
Pump failure
Faulty RTD or connection
Temperature in electronics
enclosure exceeds 50°C
Page 16 of 25
Check cable & wiring connections
Replace peltier devices
Replace heat sink assembly
Blowback heated filter
Replace heated filter for restriction
Replace sample pump
Replace pump diaphragm
Check cable and wiring connections.
Replace RTD
Replace or exchange heat sink assembly
Reduce ambient temperature in shelter
Replace electronics enclosure fan