Servicing
Optical Bench Replacement
Thermo Fisher Scientific
Model 48
i
Instruction Manual
7-15
Use the following procedure to replace the optical bench (
Figure 7–7
).
Equipment Required:
Optical bench
Philips screwdriver
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 component.
▲
1.
Turn the instrument OFF, unplug the power cord, and remove the
cover.
2.
Disconnect the chopper motor cable from the MOT DRV connector
on the measurement interface board, and disconnect the detector cable
from the PREAMP cable connector on the measurement interface
board.
3.
Disconnect the plumbing connections from the optical bench.
4.
Remove the four screws holding the optical bench to the shock mounts
and carefully remove the optical bench.
5.
Replace the optical bench by following the previous steps in reverse.
6.
Calibrate the instrument. Refer to the “
Calibration
” chapter in this
manual.
Optical Bench
Replacement
