5
– Cleaning, servicing and maintenance
19
Chapter 5
│Cleaning, servicing and
maintenance
Cleaning
Do not use alcohol- or ammonia-based liquids to clean the central controller. If
necessary, clean the exterior of the enclosure with a damp cloth.
Maintenance and servicing
We strongly recommend that the user periodically inspect the:
-
proper triggering of alarm and fault relays,
-
proper triggering of attached loop connections, and
-
proper functioning of the buzzer and the indicators on the faceplate
by injecting gas into the detector.
Caution: the adjustment operations in this paragraph are reserved
for authorized, trained personnel because they may compromise
detection reliability.
Servicing frequency
Gas detectors are safety devices. Accordingly,
Oldham
recommends regular
testing of fixed gas detection installations. This type of test consists of
injecting a standard gas of sufficient concentration into the sensor to set off
the pre-adjusted alarms. This test does not, in any case, replace a full
calibration of the detector. Frequency of gas testing depends on the industrial
application in which the sensors are used. Inspection should occur frequently
during the months following installation start up, later it may be spaced out if
no significant problem is observed.
If a detector does not react upon contact with gas, it must be calibrated. The
frequency of calibration will depend on tests (humidity, temperature, dust,
etc.); calibration should occur at least once every year. We also recommend
calibrating the detector after exposure to high gas concentrations.
The site manager is responsible for implementing the safety procedures on
his site. OLDHAM is not responsible for implementing safety procedures.
Содержание MX15
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