Servicing
DMC PMT Cooler and Reaction Chamber Replacement
7-40
42iQHL Instruction Manual
Thermo Scientific
Figure 7–42.
PMT Tube Replace-Screws
6.
Using a #2 Phillips drive, unfasten three 8-32 pan head screws.
Equipment Damage
Do not point the photomultiplier tube at a light
source. This can permanently damage the tube.
▲
7.
Pull the PMT and PMT base from cooler assembly by twisting it
slightly back and forth.
8.
To install PMT, follow previous steps in reverse order making sure to
backfill the cooler with dry air or nitrogen prior to replacing the PMT.
9.
Perform a PMT calibration as described on page
3-93
.
Summary of Contents for 42iQHL
Page 1: ...42iQHL Instruction Manual High Level NO NO2 NOx Analyzer 119018 00 27Sep2018 ...
Page 2: ......
Page 18: ......
Page 28: ......
Page 36: ...Operation Instrument Display 3 8 42iQHL Instruction Manual Thermo Scientific ...
Page 166: ......
Page 192: ......
Page 272: ......
Page 308: ......
Page 320: ......
Page 321: ......