Servicing
Bench Heater Assembly Replacement
7-20
Model 410
i
Instruction Manual
Thermo Fisher Scientific
Use the following procedure to replace the bench heater assembly. Refer to
Figure 7–11
or
Figure 7–12
as appropriate.
Equipment Required:
Bench heater
Heat conductive compound
Flatblade screwdriver, 1/4-inch
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.
Remove the optical bench following the “
Optical Bench Replacement
”
procedure in this chapter.
3.
Remove the two screws holding each heater to the bottom of the
optical bench, and remove both heaters and the heater board assembly.
4.
Apply heat conductive compound to the bottom of the heaters and
install the new heaters and heater board assembly.
5.
Calibrate the instrument. Refer to the “
Calibration
” chapter in this
manual.
Use the following procedure to replace the detector/preamplifier assembly.
Refer to
Figure 7–13
or
Figure 7–14
as appropriate.
Equipment Required:
detector/preamplifier assembly
Allen wrenches, 3/32-inch and 7/64-inch
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.
▲
Bench Heater
Assembly
Replacement
Detector/Preamplifier
Assembly
Replacement