Servicing
Reaction Chamber Cleaning or Removal
Thermo Fisher Scientific
Model 42
i
Trace Level Instruction Manual
7-21
3.
Remove the three socket head screws fastening front of reaction
chamber to rear (
Figure 7–10
). This exposes the inner surfaces of both
sections of the reaction chamber and the quartz window. To clean these
surfaces use cotton swabs and methanol.
4.
To continue removing rear of reaction chamber remove the three
socket head screws holding it to cooler, being careful to keep quartz
window and red filter in cooler body.
5.
To reinstall reaction chamber, follow previous steps in reverse, making
sure to backfill the cooler with dry air or nitrogen prior to installing
reaction chamber.
6.
Re-install the measurement bench. Refer to “
Removing the
Measurement Bench and Lowering the Partition Panel
” in this chapter.
Figure 7–10.
Cleaning or Removing the Reaction Chamber
PMT Cooler
Reaction Chamber Rear
Viton Spacer
O-Ring (2-034)
Red Filter
Reaction Chamber Front
O-Ring (2-127)
Quartz Window
