General Maintenance; Functional Gas Test - Honeywell 3000 MKII Series Technical Manual

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SERIES 3000 MKII 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

Check

Every 3 months

Visual check of controller, detectors and installation for mechanical damage.

Ensure the sensor is clear of obstruction.

Every 6 months

Functional gas test (see below). Adjust frequency according to site conditions.

Caution: The following procedure should be followed carefully and only

performed by suitably trained personnel. The system will produce alarms

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).

WARNINGS

unless suitably inhibited at the controller.

S3KMKIIMAN MAN0878 issue 13 04/23

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