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6.2.2.2 Mechanical installation of the detectors
The detector must be mounted with the detection element down, using the two mounting holes, with the
use of two expansion plugs or M5 screws.
The detectors are optionally provided with a mounting base, allowing to mount a detector at a certain
distance from the wall (e.g. in the case of uneven walls). As a result, we gain the opportunity to make a
water-splash shield to the head and prevent the accumulation of moisture on the detector, in case water is
running down the wall (see section 3).
6.2.2.3 Electrical installation
Electrical power supply installation of the detectors working in hazardous areas may only be performed by
persons with relevant qualifications (e. g. licence of the inspector for the Reception of explosion-proof
construction devices), or acting in concert and under the supervision of the manufacturer.
The electrical installation must be performed in accordance with the project.
The applied flameproof cable glands allows to introduce cables with diameters of a specific range. The
suggested cable types are included in the table in appendix [14].
When performing electrical connections, it is necessary to observe the following order:
make sure that the connected cables are disconnected from any electrical circuits and potentials,
make sure that during installation there is no risk of explosion or fire,
unlock the detector cover by loosening the cover locking screw which is located on the periphery,
thereof,
unscrew the cover of the detector,
remove the cover of the detector,
loosen the cable gland,
after the preparation of the cable (see appendix [15]) insert the cable through the cable gland,
Make sure that the cable outer diameter corresponds to the type of cable gland.
properly lay the cable so that it is not influenced by mechanical stress – see figure 11
tighten the cable gland,
tighten the detector cover, making sure that the seal is in place,
tighten the protecting screw.
As far as the design allows, the cable entry screens should be connected to detector groove, avoiding the
introduction of the braid to the inside of the device. Do not connect the screen to the high-power cable of
the electronics.
Ground the detector by connecting the cable (4 – 6 mm 2 ) to the ground terminal (see figure
11).
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User's Manual: POD-009-ENG R07