Installation Guide
Read and understand all the instructions in the BW RigRat User’s Guide before you start install.
These equipment items may receive hazardous voltages on their terminals. If you do not follow the instructions correctly,
you may expose yourself and others to serious injury as well as damage to equipment. Before starting your installation,
ensure that the model and power supply are suited to your purpose. This equipment should only be connected in
accordance with applicable regulations by qualified personnel.
1. Connection
• Standard: plug-in cage clamp terminals (max. capacity 2.5 mm2)
• A flat head screwdriver (0.6 x 3.5 mm) is recommended to open the cage clamp terminal
• Optional: plug-in screw terminals (max. capacity 2.5 mm2)
2. Installation
The equipment is intended for association in accordance with intrinsic safety; the installation mustbe in compliance with
standard EN 60079-14, in particular paragraph 12.
3. Fixing and mounting
The equipment is intended for installation on an EN 50022 rail attached horizontally on a vertical plane, in order to respect
the direction of natural convection.
Do not obstruct the air vents. Use a screwdriver to insert and remove the equipment as indicated.
4. Location
The equipment must be installed in a non-explosive atmosphere, in a safe environment free of condensation and
corrosive or conductive dust. Intrinsic safety is ensured in the operating temperature range specified in paragraph 1.6.
However, you should remember that the service life of electronic equipment is reduced by half when its temperature is
increased by 10° C.
You should therefore install the equipment in suitably ventilated equipment rooms, avoid the proximity of elements that may
heat the equipment by radiation or which are likely to generate electromagnetic radiation greater than 10V/m.
5. Electrical connection
Electrical connections must be made when the equipment is DE-ENERGIZED, using wires with a maximum diameter of 2.5
mm2. For connections, refer to the wiring diagram.
6. Mechanical properties
The intrinsic safety terminals must only be connected to intrinsic safety equipment or equipment that is in compliance with
paragraph 5.7 of standard EN 60079-11. Moreover, the association of equipment and the connection cable must be
compatible in terms of intrinsic safety.
7. Cable path
The properties of cables and their routing from the ATEX zone (I.S. cables) must comply with the recommendations set out
in paragraphs 6.1, 6.2.1 and 6.3 of standard EN 600079-11.
Full precautions must be taken to prevent electromagnetic disturbance with other cables that may
generate dangerous voltages or currents. The I.S. cables must be clamped in order to prevent random contact with other
cables in the event the terminal is cut or damaged.
8. Adjustments and configuration
See technical data sheet or instructions for use.
9. Maintenance
Precautions to take during maintenance. Unmounting must be carried out DE-ENERGIZED.
In the event you suspect a failure or permanent fault, return the equipment to our services or representatives, who are the
only maintenance providers certified to perform expert assessments or repairs.
10. Un-mounting
Un-mount the unit from the enclosure by using a screwdriver as shown:
