3.4 Electrical connections and Earthing
The PGxx11 chassis shall be connected to local Clean Earth. Use one of the two external
Earthing points (M4x5) illustrated in point A left drawing below using an Earthing cable ring lug.
The electrical terminals are located inside the rear lid in point B, opened by unscrewing the
three screws fixing it. M20 cable entries C on both sides of the Detector. The other dimensions
M25, 1/2" NPT and 3/4" NPT are supplied on request at order. The right side of the terminals
D are occupied with internal wiring, and on the left side E are the terminals (pin 1 at the top
and pin 5 at the bottom) to be wired according to table 1. F is the internal Earth point for an
M4x4 screw for the connection of a cable lug.
To avoid the risk of corrosion, use quality fasteners for the connection of the earthing.
Avoid the use of aluminium, magnesium, titanium or zirconium. A lockwasher or
similar should be used to ensure secureness of the electrical connection.
The termination compartment inside the rear lid is equipped with Phoenix Contact MPT 2,5 -
3248125 Push in style connectors, accommodating wires of cross section 0.14mm² (AWG 26)
to 2.5mm² (AWG14) (4mm²/12AWG for single conductor wire). Wires should be stripped to
expose min 8mm, max 10mm conductor. Insert rigid conductors or conductors with ferrules
into the conductor shaft. The contact spring opens automatically and provides the required
pressure force against the current bar.
The wiring of the Detector shall be done in accordance with table 1.
Document 022-80036-OM Revision R03 Page 16 of 48
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