Atest Gaz Sigma SmArt, User Manual

Page: 21 / 84

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Ground connection should be protected from corrosion (e. g. a small amount of technical
petroleum jelly).
Figure 11: Grounding connection and correct cable laying
The cable shield shall be isolated and slightly protrude from the cable entry inside the detector. The shield
cannot be connected to any device point.
A detailed description of the preparation of the cable and connecting the cable to the
detector is provided in appendix [15].
On the side of the control unit, screens must be connected to ground.
According to good practice, wiring of the detectors should be carried out as far as possible from the power
cables / high-current cables, preferably in separate trays.
Installation of a gas detection system is not intrinsically safe. Damage to the cable is
dangerous.
If the connection was made with the use of multi-wire cables (commonly known as a "cord"), the ends of
these connectors should be ended with clamp sleeves.
If there is a need to connect two conductors in one terminal of the device, the only allowable option is to
connect them in a common clamping sleeve.
It is unacceptable to combine in one connector two wires which are not pinched in one cable
lug.
Do not place the cable reserve in the device. Bare wires or wires surplus may create a danger
of electric shock or equipment damage.
Do not leave disconnected cables inside the device.
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User's Manual: POD-009-ENG R07