Thermo Scientific 43iQTL Instruction Manual page 179

Thermo Scientific
Problem
Alarm – Flow Flow low
Flow high
Flow = 0 LPM
Worn Diaphragm
Alarm – Intensity Low – Lamp is failing
Alarm – Lamp voltage Low voltage (<600v)
High voltage (>1400v)
Alarm – SO Conc. Concentration has
2
exceeded range limit
Concentration low
Alarm – Board Cable connection
Communication
Defective DMC PCB
Alarm – Power Supply Cable connection
Defective component
Defective DMC PCB
Alarm – Module Cable connection
Temperature
Possible Cause
Check that the capillary is properly
installed and o-rings are in good shape.
Check sample capillary for blockage.
Replace as necessary.
If using sample particulate filter, make
sure it is not blocked. Disconnect
sample particulate filter from the
sample bulkhead. If flow increases,
replace the filter.
Perform a leak test as decribed on page
5-5.
When delivering zero air or gas to the
instrument, use an atmospheric dump.
Check that Step POL board #1 has both
dip switch settings of SW2 off (both
facing the rear of the instrument). Verify
the pump is plugged into the Step POL
board.
Rebuild pump every 12 months or as
needed.
Check that the lamp and trigger pack are
securely fastened.
Replace lamp.
Replace lamp power supply.
Replace flash lamp.
Check to ensure range corresponds with
expected value. If not, select proper
range.
Check user-defined low set point. Be
sure the minimum trigger is set as
desired.
Check that DMC cable is connected
properly. Reseat if needed.
Replace DMC board.
Check that DMC cable is connected
properly. Reseat if needed.
Check for other alarms, as it is possible
that another component of that DMC is
drawing too much current.
Replace DMC board.
Check that DMC cable is connected
properly. Reseat if needed.
Troubleshooting
Troubleshooting Guide
Action
6-7
43iQTL Instruction Manual