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Replacing Tcd Components; Replace Tcd Thermistor Beads/filaments Introduction - Siemens Maxum II Service Manual

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Figure 2-5
TCD Information Path (Airless and Airbath models)
Figure 2-6
TCD Information Path (Modular Oven model)
2.2

Replacing TCD Components

2.2.1

Replace TCD Thermistor Beads/Filaments Introduction

This section provides the procedure to replace the Thermistor Board or Filament Board for the
Thermal Conductivity Detector (TCD).
Possible configurations for the TCD include the 2-Cell Filament Detector and the 8-Cell
Thermistor Detector. The drawings in this section are for the 8-Cell Thermistor Detector.
However, replacement of the Filament Board on the Filament Detector follows the same basic
procedure. It is possible to replace the Filament/Thermistor Board with the detector installed
in the analyzer.
TCD parts should be removed or replaced only by a trained Siemens maintenance engineer
or by the user's maintenance personnel trained by Siemens.
Note
Do NOT attempt to open the TCD with the power on.
Maxum Edition II Detectors
Service Manual, May 2018, A5E42019847001
Thermal Conductivity Detector
2.2 Replacing TCD Components
11

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