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SERIES 3000 MKIII TECHNICAL MANUAL
14. General maintenance
• Appropriate standards must be followed to maintain the specified operation of the
detector.
• It is recommended to bump test the sensors frequently to ensure proper operation.
Note: It is recommended that the system is visually and functionally checked regularly to ensure correct
operation. The frequency of the checks should be determined subject to particular site conditions.
As a guide Honeywell Analytics recommend the following checks and frequency.
Frequency
Every 3 months
Every 6 months
Caution:
The following procedure should be followed carefully and only performed by
suitably trained personnel. The system will produce alarms unless suitably inhibited at
the controller.
14.1 Functional gas test
It is essential that the sensor is tested frequently to be sure the system is operating properly. Typically gas
detectors should be tested at least twice per year. However it is recommended that testing is conducted
on a more frequent basis after initial start up as sensor operation and performance will vary in different
environmental conditions and in the presence of other gases. It is the responsibility of the user to determine
an appropriate calibration frequency for the application. The weatherproof cover has a spigot for attaching
tubing from a gas cylinder. This may be used for a simple functional (or bump) test of the sensor. However,
this method may not be suitable for all gas types and / or applications due to environmental conditions.
It is the responsibility of the user to ensure suitability of this method for each application.
1. Follow the procedure for Bump Test in section 12.1.
2. If the difference between reading and applied gas concentration is outside the acceptable limits for
the application follow the procedures for zeroing and calibrating the detector (see section 8.2.1).
3. If reading is still inaccurate replace the sensor (see section 15.1).
Check
Visual check of controller, detectors and installation for mechanical damage.
Ensure the sensor is clear of obstruction.
Functional gas test (see below). Adjust frequency according to site conditions.
WARNINGS
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MAN0917_Issue 6_08/2015
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