RayTek GP Series, Руководство по эксплуатации

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Installation of Sensing Heads
42
Rev. F 10/2011
GP Series
4.6 Electrical Interference
To minimize electrical or electromagnetic interference or “noise,” be
aware of the following:
Mount the sensor as far away as possible from potential
sources of electrical interference such as motorized equipment
producing large step load changes.
With a GP sensing head, use solid or flexible conduit between
the head and electronics box. Check continuity to ensure a
good connection of the conduit between the sensor head and
electronics box. For a good connection, the ends of the conduit
should make metal to metal contact with the sensor head and
the electronics box.
Use shielded wire for all input and output connections.
Connect the shield as described in the sensing head tables in
sections
3.3.2 and 3.3.3 page 13 ff. Make sure the shield wire in
the sensor cable is earth grounded.
For additional protection, use conduit for the AC power lines
and any external connections. Solid conduit is better than
flexible conduit in high noise environments.
Do not run AC power for other equipment in the same conduit.
4.7 Mechanical Installation
4.7.1 GPR/GPS Sensing Head
After you complete preparations, fasten the supplied mounting
bracket, or other mounting device, to the area you have chosen. You
can fasten the sensor with the supplied nut either in the front, by the
lens, or in the back by the cable connector. Make sure the nut is tight,
but do not over tighten.
For the
GPR , the standard 4 m (13ft) cable is an accessory and comes
with a 5-pin DIN connector on one end and bare wires on the other.
Plug the DIN connector into the sensing head, and run the wire to the