I/O Errors - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

I/O Errors

Thermo Fisher Scientific
Check FTIR LED activity light Chapter 7,
●
Component
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.
Status mark on OMNIC, see Chapter 3 "Operation".
●
Check cable between computer and FTIR, see Chapter 7,
●
"System Component
No concentration updates in IMACC software
●
Make sure script is running in ImaccMonitor.
●
See 'Concentration errors' in this chapter.
●
No temperature readings
●
See 'Temperature errors' in this chapter.
●
4-20mA analog output errors
Wrong concentration reported for one or more gases
●
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.
Check cable from breaker board to NI PCI-6704 board inside
●
PC.
Digital I/O errors
Gas mode output or FTIR data valid digital output is not reporting
●
the expected mode
Click the "View Script" button in ImaccMonitor and verify
●
that IMACC Script Editor shows that the script is running.
Description". If no LEDs on, check FTIR circuit
Description".
Omni FTIR Multi Gas CEMS Instruction Manual
Troubleshooting
I/O Errors
"System
6-7