Replacing The Ethernet Switch; Replacing The Solid State Relays - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

Replacing the
Ethernet Switch
Replacing the Solid
State Relays
Thermo Fisher Scientific
Use the following procedure to replace the Ethernet switch on the electrical
panel in the rear of the system
Equipment Required:
Phillips screwdriver
Ethernet switch
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap
must be worn while handling any internal components.
1. Note the location of each wiring connection to the Ethernet switch to
facilitate re-assembly. Remove any Ethernet cables connected to the
right side of the switch (Ports 1–3), and then move the green ground
wire out of the cable routing strip.
2. Using the Phillips screwdriver, loosen but do not remove the two
mounting screws securing the Ethernet switch to the panel. Slide the
switch to the right and pull it off of the panel.
3. Disconnect the green voltage terminal block and the Port 4 Ethernet
connector from the left side of the switch.
4. Using the Phillips screwdriver, remove the ground wire on the bottom
of the Ethernet switch.
5. Using the Phillips screwdriver, attach the ground wire to the bottom of
the new switch.
6. Follow steps 1–3 in reverse order to complete the procedure.
Use the following procedure to replace the solid state relays on the electrical
panel in the rear of the system. There are 3 24VDC relays and 15 5VDC
relays (Figure 5–57).
Preventive Maintenance and Servicing
(Figure 5–56).
Omni FTIR Multi Gas CEMS Instruction Manual
Electrical Panel Components
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