Thermo Scientific Omni FTIR Multi Gas CEMS, Инструкция по эксплуатации

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Preventive Maintenance and Servicing
Pneumatic Panel Components
5-92 Omni FTIR Multi Gas CEMS Instruction Manual Thermo Fisher Scientific
2. 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 (
Figure 5–18 ).
3. At the rear of the pneumatic panel, use the 9/16-inch wrench to loosen
the nut and remove the short PTFE line from the pressure gauge to be
replaced (
Figure 5–62 ).
4. Using your fingers, remove the 2 wing nuts and mounting bracket from
the pressure gauge. Remove the gauge from the front of the pneumatic
panel (
Figure 5–62 ).
5. Remove the nut and ferrules from the fitting on the new pressure gauge
and discard them.
6. Insert the new pressure gauge through the front of the pneumatic panel
and hold it in place, positioning it in the same orientation as the other
gauge. At the rear of the panel, slide the mounting bracket over the
threaded studs and thread the wing nuts onto the studs. Tighten the
wing nuts with your fingers until snug.
7. Re-connect the PTFE line to the fitting on the new pressure gauge, and
then tighten the nut using the 9/16-inch wrench until snug.
8. Set the house air regulator back to the pressure noted earlier, then push
the knob down to lock it.
9. Re-install the left side panel to complete the procedure.
Use the following procedure to replace the solenoid valves on the
pneumatic panel. The procedure is the same to replace any of the five
solenoid valves except where noted. Four of the solenoid valves have the
same part number, but the solenoid valve for the instrument zero has a
different part number (from the rear of the panel, it is the furthest to the
right.) (See (
Figure 5–62 ).)Be sure to order the correct valve.
Equipment Required:
Phillips screwdriver
Small Phillips screwdriver
Wrench, 9/16-inch and 3/4-inch
Replacing the
Solenoid Valves