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Teledyne 2020 - Explosion proof thermal conductivity analyzer User Manual

Page 71

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Thermal Conductivity Analyzer

Maintenance 5

5-5

Teledyne Analytical Instruments

See the drawings in the Drawings section in back of this manual

for details.

5.6

Cell, Heater, and/or Thermistor Replacement

The Thermal Conductivity Cell, with its Heater and Thermistor, is

mounted inside the insulated cell compartment, just behind the analyzer's
front panel access door. To remove the one of these components, you must
first slide the entire Cell Compartment out of the analyzer through the front
panel access door as described in the procedure below. Figure 5-5 identi-
fies the five screws that must be removed in order to remove the Cell
Compartment.

5.6.1 Removing the Cell Compartment

WARNING: IF THE MODEL 2020 ANALYZER HAS BEEN USED

WITH TOXIC GASES, FLUSH IT THOROUGHLY
BEFORE PERFORMING THIS PROCEDURE.

WARNING: DISCONNECT ALL POWER TO THE MODEL 2020

BEFORE PERFORMING THIS PROCEDURE.

Figure 5-5: Location of Cell Compartment