![Thermo Scientific 42iQTL Instruction Manual Download Page 242](http://html.mh-extra.com/html/thermo-scientific/42iqtl/42iqtl_instruction-manual_1105146242.webp)
Servicing
DMC PMT Cooler and Reaction Chamber Replacement
7-38
42iQTL Instruction Manual
Thermo Scientific
Figure 7–39.
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
3-84
.
Summary of Contents for 42iQTL
Page 1: ...42iQTL Instruction Manual Trace Level NO NO2 NOx Analyzer 119019 00 1April2020 ...
Page 2: ......
Page 26: ......
Page 34: ...Operation Instrument Display 3 8 42iQTL Instruction Manual Thermo Scientific ...
Page 162: ......
Page 190: ......
Page 258: ......
Page 292: ......
Page 304: ......
Page 308: ......
Page 309: ......