5 Inspection and Service
R
egular maintenance
a
nd calibration of the sensor
s
by trained technicians
is
recommend
. See SC2
datasheet for requirements.
According to EN 45544-4, inspection and service has to be executed at regular intervals. The maximum
intervals have to be determined and observed by the person responsible for the gas warning system
according to the legal requirements.
I
nspection and maintenance intervals as prescribed in the general
regulations of the gas measuring technique like VDI-2053, EN 60079-29-1 etc. The inspection interval
normally is three months. The recommended service intervals are depended from the connected Sensor
Cartridges. If different intervals are valid, always consider the shortest one.
Inspections and services must be documented. The date for the next maintenance has to be affixed to the
sensor.
5.1 Inspection
Gas sensors should be controlled regularly by a competent person according to EN 45544-4. The following
has to be checked in particular:
•
Maintenance / calibration interval not exceeded.
•
Visual inspection of the sensor including cable for damage, vandalism etc.
•
Remove dust deposits, especially at the gas inlet.
•
The filter at the gas inlet has to be replaced if extremely dirty.
•
Check the Unit including measuring head for dust, dirt and moisture deposits and clean it with a dry
cloth if necessary.
5.2 Service and Calibration
When performing the maintenance, you have to do the calibration and the functional test in addition to the
inspection. See section 4.
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Specifications subject to change without notice. | GASB2_03_E_0220 | USA 200306 | Page 9 of 15
DT6 – UserManual
