Maintenance; Overview; Preventive Maintenance Practices And Schedules; Replacing The Communication Module - Honeywell STT850 SMARTLINE User Manual

Temperature transmitter

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This section provides information about preventive maintenance and replacing damaged parts. The

topics covered in this section are:

•

Replacement of damaged parts such as the Electronics Modules.

The STT850 SmartLine Transmitter does not require any specific maintenance at regularly scheduled

intervals.

Maintenance of the STT850 is limited to ensuring that connections, seals and mounting are tight and

secure. There are no moving parts or adjustments and hence no reason to open the field housing

except to inspect for corrosion or conductive dust entry which could later affect reliable operation.

The transmitter modules themselves should never be opened.

The Communication module includes a connector to the optional Display module. This section

includes the procedure to replace the Communication module.

The transmitter does not have to be removed from service to replace the Comm

Module

Please take appropriate steps to avoid ESD damage when handling the

Communication and Display Module assemblies

Refer to

Figure

18for parts locations.

Revision 1

5 Maintenance

Figure 18 – PWA Replacement

STT850 Temperature Transmitter User's Manual

Page 47

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