Thermo Scientific Omni FTIR Multi Gas CEMS, Instruction Manual

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Troubleshooting
I/O Errors
Thermo Fisher Scientific Omni FTIR Multi Gas CEMS Instruction Manual 6-7
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Check FTIR LED activity light Chapter 7, “ System
Component Description ”. If no LEDs on, check FTIR circuit
breaker and power supply connections. If scan LED off (not
flashing), check USB connection between PC and FTIR; make
sure script is running in ImaccMonitor.
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Status mark on OMNIC, see Chapter 3 “ Operation ”.
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Check cable between computer and FTIR, see Chapter 7,
“
System Component Description ”.
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No concentration updates in IMACC software
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Make sure script is running in ImaccMonitor.
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See ‘Concentration errors’ in this chapter.
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No temperature readings
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See ‘Temperature errors’ in this chapter.
4-20mA analog output errors
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Wrong concentration reported for one or more gases
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Check ImaccCurrentLoop server “value” and “outputs (mA)”
readings. If “value” doesn’t look correct, see “Concentration
Errors”. Otherwise, if “output (mA)” doesn’t look correct,
check the “channel”, “min cutoff”, and “max cutoff” settings in
ImaccCurrentLoop; see Chapter 3, “Imacc CurrentLoop
Server”.
●
Use a current meter to check the current directly at the terminal
block in the rear of the system. Pull out the disconnect to
remove any external wiring from the current loop. If reading
looks OK on meter, check wiring and settings in
DCS/Datalogger.
●
Check wiring from therminal block to breakout board on
opposite side of electrical panel.
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Check cable from breaker board to NI PCI-6704 board inside
PC.
Digital I/O errors
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Gas mode output or FTIR data valid digital output is not reporting
the expected mode
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Click the “View Script” button in ImaccMonitor and verify
that IMACC Script Editor shows that the script is running.
I/O Errors