Thermo Scientific Omni FTIR Multi Gas CEMS, Instruction Manual

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Preventive Maintenance and Servicing
Replacing the Heated Lines
5-54 Omni FTIR Multi Gas CEMS Instruction Manual Thermo Fisher Scientific
Use the following procedure to replace the FTIR heated lines (1-meter
internal).
Equipment Required:
Wrench, 9/16-inch and 5/8-inch
Phillips screwdriver
Wire cutters
Heated lines
Tie wraps (zip ties)
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. Remove the rack left side panel per procedure “ Removing the Left Side
Panel ” for better accessibility (optional step).
3. Using the Phillips screwdriver, remove the FTIR cover panel in the
front of the system and the blank panel above it.
4. Slide the FTIR drawer out of the system to access the rear of the unit.
5. Using the wire cutters, remove any tie wraps securing the heated line(s)
to be replaced.
6. Disconnect the connector for the line(s) being replaced from the
temperature control box. Labels on the temperature control box
correspond to the labels on the sample system heater assembly.
7. Using the 9/16-inch wrench, loosen the nut and disconnect the heated
line(s) to be replaced from the elbow fittings at the rear of the FTIR
(
Figure 5–45 ). Note their position to facilitate re-connection.
Replacing the
Heated Lines