40 SENTRY io US
8 Maintenance
8 Maintenance
The SENTRY io does not require any special maintenance except for cleaning and periodic functional checks.
8.1 Periodic Functional Test
The following functional tests should be performed at least annually:
l
Verify wiring, terminal connections, and stability of mounting for all integral safety equipment, including, but not
limited to:
o
Power supplies
o
Control modules
o
Field detection devices
o
Signaling/output devices
o
Accessories connected to field and signaling devices
l
See 5 System Verification for initial verification steps.
l
Verify proper system operation by performing a full, functional test of all component devices of the safety system,
ensuring that the proper levels of alarming occur.
l
Fault/Malfunction circuit operation should be verified.
8.2 Calibration Check
Check the calibration of the sensor(s) connected to the input(s) of the SENTRY io according to the recommended schedule
in the device manual(s).
8.3 Cleaning
Ensure that any cleaning or maintenance operations on the SENTRY io and sensor accessories follow ESD-safe
procedures.
WARNING!
If cleaning requires the use of conductive liquids, ensure that the SENTRY io is fully powered off. Ensure that instruments
and accessories are fully dry before use.
Failure to follow this warning can result in serious personal injury or death.
8.4 Storage
The SENTRY io enclosure should be stored in a clean, dry area that is within the temperature and humidity ranges quoted
in 7 Technical Specifications. You should insert dust caps into any vacant cable entry holes during storage.
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