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!
Failure to follow this warning can result in serious personal injury or death.
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 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.
• Strict adherence to the specifications and regulations applicable to installation, start-up, operation, and
maintenance is required.
• Follow the installation instructions for hazardous areas.
• The specified environmental conditions must be adhered to.
• Position the height of the MSA Gas detector Series 47K according to the density of gas or vapour to be measured.
• The proper installation location must be chosen to ensure that the sintered disc of the MSA Gas detector Series
47K is kept dry and dust-free.
GB Series 47K 10
3 Installation
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