Replacing The Air Filters; Figure 5-18. Turning Off House Air - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

Replacing the
Air Filters
Thermo Fisher Scientific
14. Power up the FTIR analyzer and heaters by turning on the FTIR
circuit breaker and the Temperature Control circuit breaker on the
breaker box.
15. Wait 15 minutes for the new components to stabilize thermally and
then align the analyzer by following the instructions in Chapter 3. (See
"OMNIC" software on page 3-11.) Verify that the new beamsplitter is
working properly by switching the system to zero air and looking at the
maximum peak voltage (Vmax) in IMACC monitor (refer to Chapter
3, "Operation"). Vmax should be greater than 4 volts.
Use the following procedure to replace the filters in the filter bracket
assembly.
All three types of filters are replaced using the same procedure.
Equipment Required:
Replacement Filters: DX, BX, and CI (from left to right)
1. Note the pressure on the house air regulator, then pull up on the knob
to unlock it and turn the pressure down to zero
Figure 5–18. Turning Off House Air
2. Grasp the bottom of the filter assembly, then with a slight upward
pressure, turn it to the left until it stops (the word "Lock" should be
directly facing you) and pull it straight down
Preventive Maintenance and Servicing

Replacing the Air Filters

(Figure 5–18).
(Figure 5–19).
Omni FTIR Multi Gas CEMS Instruction Manual 5-29