Sierra Monitor Corporation 4501-05 Service, 7.1SENSOR MODULE CONFIGURATION, Enclosure Replacement

Model 4501-XX Toxic Gas Sensor Module

7. SERVICE

7.1SENSOR MODULE CONFIGURATION

The gas sensor module is comprised of the following sub-assemblies (Figure 7-1):

4501-XX	Gas Sensor Module
SPL27077	Enclosure
SPM27071	Transmitter Assembly
XXXXXXX	Sensor Assembly (see Appendix B)
XXXXXXX	Sensor (see Appendix B)

There are no field serviceable components below the sub assembly level.

ENCLOSURE REPLACEMENT

The enclosure should be replaced if the cover threads or conduit threads have been damaged, or if the enclosure has been damaged sufficiently that it no longer meets the required NEMA classification.

To replace the enclosure follow the transmitter and sensor assembly removal instructions, remove the damaged enclosure from its conduit, install a new enclosure and continue the transmitter and sensor assembly replacement instructions.

Figure 7-1

Module Components

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