Thermo Scientific Omni FTIR Multi Gas CEMS, Instruction Manual

Page: 120 / 254

Preventive Maintenance and Servicing
Removing the FTIR
5-36 Omni FTIR Multi Gas CEMS Instruction Manual Thermo Fisher Scientific
5. Note or mark the position of wiring and fittings to facilitate re-
connection.
6. Using the Phillips screwdriver, loosen the mounting screws and unplug
the power cord from the top rear of the unit (
Figure 5–27 ).
7. Unplug the USB cable from the top rear of the unit ( Figure 5–27 ).
8. 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 5–27 ).
9. Using the Phillips screwdriver, remove the ground wire from the rear
plate of the cell assembly. Disconnect the 2 blue connectors for the
heaters at the rear of the unit by carefully pulling them apart (
Figure 5–
27 ).
10. Disconnect the temperature sensor connector from the sensor by
pulling it off, exposing the 3 metal prongs (
Figure 5–27 ). Note that the
red dot on the connector lines up with the red dot on the sensor.
11. Disconnect the purge air line from the bottom rear of the unit by
pressing the quick disconnect latch on top of the fitting (until you hear
a click) and pulling it out (
Figure 5–27 ). The purge air line is
connected to the right side fitting labeled “Purge In”.
12. Using the 9/16-inch wrench, disconnect the two 1-meter heated lines
from the elbow fittings at the rear of the unit (
Figure 5–27 ). Note or
mark their position to facilitate re-connection.