Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual page 179

Thermo Fisher Scientific
Small flat blade screwdriver
Wrench, 9/16-inch
Nut driver, 11/32-inch
Flow meter/regulator
1. Remove the left side panel per procedure
Panel" for better accessibility.
2. If the probe spike or probe span flow meter is being replaced, turn off
the HCl/SF6 cylinder or the EPA mix cylinder, respectively. From the
rear of the pneumatic panel, the probe spike is the first flow meter on
the left and the probe span is next to it. If any of the other 4 flow
meters are being replaced, note the pressure on the house air regulator
located on the right side of the system, so that it can be reset later. Pull
up on the knob to unlock it and turn the pressure down to zero
5–18).
3. The components are accessed from the rear of the pneumatic panel.
Using the 9/16-inch wrench, loosen the nut and remove the tubing
from the top and bottom fittings on the flow meter. Note their
locations to facilitate re-connection
4. Using the 11/32-inch nut driver, loosen and remove the 6 nuts that
mount the flow meter panel to the pneumatic panel. Pull the flow
meter panel away from the pneumatic panel for better access
62).
5. Using the Phillips screwdriver, loosen and remove the 2 screws that
mount the flow meter to the flow meter panel, then remove the flow
meter from the front of the panel
6. To prepare the new flow meter/regulator, make sure the valve is closed
by turning the knob all the way counterclockwise. Remove the nuts and
ferrules from the 2 fittings and discard them.
7. Insert the new flow meter into position on the flow meter panel,
making sure the orientation is correct. Insert the 2 mounting screws
and tighten using the Phillips screwdriver until snug.
Preventive Maintenance and Servicing
Pneumatic Panel Components
"Removing the Left Side
(Figure 5–62).
(Figure 5–62).
Omni FTIR Multi Gas CEMS Instruction Manual
(Figure
(Figure 5–
5-95