Assembly; Range Of Use; How To Open The Housing - Stahl EC-940S Serie Manuel D'instructions

8 Assembly

Make all connections, installation and
maintenance work in a non-explosive
atmosphere.
Make sure that all the equipment are
certified for the application and for the
environment in which they will be installed.
CAUTION! The electrical system to which
the unit is connected must be equipped
with a 10A max automatic bipolar circuit
breaker. The minimum distance between
the circuit breaker contacts must be
3mm (0.1in). The circuit breaker must be
provided with protection against the fault
current towards the ground (differential)
and the overcurrent (magnetothermal).
Electrical connections must be performed
with the power supply disconnected and
the circuit-breaker open.
A power disconnect device must be
included in the electrical installation, and
it must be very quickly recognizable and
operated if needed.
Be careful not to use cables that seem worn
or old.
CAUTION! Device installation and
maintaining must be performed by
specialist technical staff only.
Comply with all the national standards
during the device installation.
The housing can be installed in any
position.
The cameras to be installed shall not
contain cells or batteries.
STAHL strongly recommend to test the
device configuration and performance in
a office\laboratory before putting it in the
final installation site.
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8.1 Range of use

The unit is designed for use in a fixed location, for
surveillance of areas classified as zone 1-21 and zone
2-22 potentially explosive atmospheres.
The unit has been built and certified in compliance
with directive 94/9/CE and 2014/34/UE and with the
international standards IECEX, which define its range
of application and minimum safety requirements.

8.2 How to open the housing

During product opening and closing
operations, be careful not to damage the
explosion proof joint.
To install the camera open the rear flange of the
enclosure.
Take out the screws, remove the washers and take the
bottom out of the housing.
Screws properties
• Diameter/Screw pitch: M5x0.8
• Material: A4 Class 70
• Screw head: ISO 4762
• Length: 12mm
• Yield stress (min): 200N/mm²
Be very careful when opening the version
with built-in wiper. Take the slide out
slowly to avoid damaging the connections.
Disconnect the connectors before taking
the slide out completely.
Fig. 12
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