Maintenance And Troubleshooting; Maintenance - Emerson Rosemount 975UF Reference Manual

Reference Manual
00809-0100-4977
4

Maintenance and troubleshooting

This chapter deals with preventative maintenance, describes possible faults in detector
operation, and indicates corrective measures.
Ignoring these instructions may cause problems with the detector and may invalidate the
warranty. Whenever a unit requires service, please contact Emerson or its authorized
distributer for assistance.
4.1

Maintenance

This section describes the basic maintenance steps you should take to keep the detector in
good working condition.
4.1.1 General maintenance procedures
Only suitably qualified personnel who are familiar with local codes and practices should
perform maintenance. Maintenance requires ordinary tools.
Cleaning
Keep the detector as clean as possible. Clean the viewing window and the reflector of the
flame detector periodically.
The frequency of cleaning operations depends upon the local environmental conditions
and specific applications. The fire detection system designer will give his or her
recommendations.
To clean the detector viewing window and reflector:
Procedure
1. Disconnect power to the detector before proceeding with any maintenance,
2. Use water and detergent and then rinse the viewing window with clean water.
3. Where dust, dirt, or moisture accumulates on the window, first clean only with a
4.1.2 Periodic maintenance procedures
In addition to preventive cleaning and maintenance, functionally test the detector every
six months or as dictated by local codes and regulations. Also perform these tests if the
detector has been opened for any reason.
Power-up procedure
Perform the power-up procedure every time power is restored to the system.
Follow the instructions described in
Rosemount 975UF
including window/lens cleaning.
soft optical cloth and detergent and then rinse with clean water.
Maintenance and troubleshooting
Power up.
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