Replacing The Beamsplitter - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

Replacing the
Beamsplitter
Thermo Fisher Scientific
7. Using the 3/32-inch hex wrench, re-install the front panel with the
mounting screws, taking care to support the panel until the screws are
in place. Be careful to place all wiring and cables completely inside the
analyzer to avoid damaging them.
8. Power up the FTIR analyzer by turning on the FTIR circuit breaker on
the breaker box.
9. Slide the FTIR drawer back into the rack, then use the Phillips
screwdriver to re-install the FTIR cover panel and its mounting screws
to complete the installation procedure.
10. 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 detector 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 beamsplitter in the FTIR
analyzer. The beamsplitter is located underneath the top access panel of the
analyzer. The top plate that mounts the gas cell assembly and the coupling
optics must be removed to get to that top access panel.
WARNING To avoid shock hazard, always turn off the FTIR circuit
breaker on the breaker panel before replacing any components inside the
FTIR analyzer.
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CAUTION High surface temperatures present. Allow sufficient time to
cool. ▲
CAUTION The beamsplitters are extremely delicate. Hold them only by the
handle. Do not touch the mounting pads, and do not touch or breathe on
the substrate. Keep the exposure to humid air to a minimum.
Important Note A system operator can replace the beamsplitter, however it
is recommended that only our certified service engineers or on-site
maintenance personnel who have been trained by us replace the
beamsplitter. Whenever the analyzer compartment is open, there is a
potential for damage to sensitive components, which will affect the
performance of the system.
Preventive Maintenance and Servicing
Maintenance and Servicing of the FTIR Analyzer Components
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Omni FTIR Multi Gas CEMS Instruction Manual
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