Thermo Scientific Omni FTIR Multi Gas CEMS, Instruction Manual

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Preventive Maintenance and Servicing
Replacing the Pressure Sensor
Thermo Fisher Scientific Omni FTIR Multi Gas CEMS Instruction Manual 5-41
Use the following procedure to replace the FTIR pressure sensor.
Equipment Required:
Wrench, 9/16-inch and 3/4-inch
Phillips screwdriver
Small Phillips screwdriver
Pressure sensor
CAUTION High surface temperatures present. Allow sufficient time to
cool. ▲
1. Shut down the FTIR heaters by turning off the Temperature Control
circuit breaker on the breaker box and allow it to cool for 1 hour. This
will put the system in fail safe mode so that it will not be sampling
stack gas.
2. Using the Phillips screwdriver, remove the FTIR cover panel in the
front of the system and the blank panel above it.
3. Slide the FTIR drawer out of the system to access the right rear side of
the unit.
4. Using the small Phillips screwdriver, loosen the captive screw that holds
the pressure sensor cable in place, then pull the cable assembly off of
the sensor (
Figure 5–31 ).
Replacing the
Pressure Sensor