ThermoFisher Scientific Ozone Primary Standard 49iQPS, Instruction Manual

Page: 192 / 256

Servicing
49iQPS Photometer DMC
6-36 49iQPS Instruction Manual Thermo Scientific
Use the following procedure to replace the detector board.
Equipment required:
Hex drive, 3/32
1. Turn instrument OFF, unplug power cord, and remove the cover
(
Figure 2–1 ).
2. Unplug electrical cable from detector 1 and detector 2.
3. Using a 3/32 hex drive, unfasten four #4-40 cap head screws to remove
the cover.
4. Remove detector cover.
5. Using a 3/32 hex drive, unfasten four #4-40 cap head screws to replace
per board.
Figure 6–42. Replacing Detector Board
6. Replace detector board and reassemble in reverse order.
Detector Board
Replacement