GB
MSA INSTALLATION
Series 47K Gas Detector [SIL 2] 11
3. Installation
3.1. Installation – Step by Step
(1) Unpack and inspect the device or its components.
(2) Check the suitability of the installation site and the cabling requirements.
(3) Install the sensors and connect the wiring to the MSA control unit.
(4) The installation of the sensor must be performed according to standard
EN 60079-14 or according to applicable national standards.
Warning
Follow the installation instructions for hazardous areas!
(5) After installation is complete, perform the start-up procedure as instructed in
the relevant MSA controller manual.
3.2. Unpacking
Perform the following steps on receipt of the shipment:
(1) Carefully unpack the device or its components, observing all of the
instructions printed on or accompanying the packaging.
(2) Also inspect the contents of the delivery to determine if any transport
damage has occurred and verify that everything listed in the shipping papers
has been received.
3.3. General Installation Instructions for Achieving EMC Compliance
For connection to the power supply system a fault-free ground or fault-free
equipotential bonding must be provided.
An appropriate supply voltage free of feedback to the external source in
accordance with the EMC Directives (2014/30/EU) must be used.
If the devices are supplied from a direct voltage [dc] source, the supply cable
must be screened.
Screened cable is to be used to connect the sensor signal.
Screened cable must have at least 80% coverage by the screening.
Sensor cables must be installed physically separate from power supply
cables.
Screened cables must be installed in one piece. If it should prove necessary
to extend a cable by way of a terminal box, the terminal box must be
screened, and the connections in the box must be kept as short as possible.
Unscreened cables and cables from which the insulation has been stripped
must be as short as possible and must be terminated without loops.
If additional high-voltage surge protection measures are required an
appropriate high-voltage protection filter, approved by MSA, must be installed
in the sensor cable.
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