The Weir Group PLC
Weir Industrial Gateway setup guide rev 0.5
Copyright © Weir Minerals Australia Ltd 2017. Commercial in Confidence. All rights reserved.
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1.4.4
Determination That Equipment Can be Used Safely in the Intended Area
The installation of this system requires that the equipment be mounted in such a way that it
can withstand impacts from use and vibration from the machinery it is attached to. The
following should be checked to ensure that the installation is safe:
Cables should be supported such that the supports carry the weight of the cable and
the connectors are not being pulled from the weight of the cable.
In hazardous location areas, the air surrounding the equipment should have an
oxygen concentration of not greater than 21 percent by volume; and a pressure of 80
kPa (0.8 bar) to 110 kPa (1.1 bar)
The ambient temperature range is from -30°C
≤ Tamb ≤ 70°C.
The mains that the equipment is attached to have a 15A circuit breaker installed
outside of the hazardous area for hazardous locations.
All connections are tight and in hazardous location areas, all locking mechanisms on
the connectors are attached.
All connections are watertight, with Nitto No 15 self-amalgamating tape used on the
RF connections to ensure that water cannot get into the connector.
The sensors are installed in such a manner that they will not come off from operation,
and the sensor cables will not interfere with equipment operation. It is preferable that
sensor cables do not get very close to electric motor windings, which can generate
significant amounts of magnetic field, which may affect the sensor sensitivity.
The sensor electrical connections are waterproof.
The transient limiting of lightning, surges, and other transients coming from the mains
power is done within the power supply by the use of transient/surge absorbers. These
are connected line to line, as well as line to chassis ground. The characteristics of these
transient absorbers are as follows:
Part No
Varistor
Voltage (V)
Maximum
Allowable
Voltage
Clamping Voltage
At 8/20µs
Max (V) Ip (A)
Maximum Peak
Current at 8/20µs (A)
1 time 2 times
Panasonic
ERZ-V20D431
430
(387 to 473)
275Vac, 350 Vdc
745
5
800
600
710
10
1750
1250
710
25
3500
2500
710
25
3500
2500
710
50
6000
4500
710
100
10000
6500
Figure 1-1 Transient Protection Parameters, Line to Line and Line to Ground
The Continuous operating temperature of the gaskets are as follows:
<ADD GASKET COT INFORMATION HERE>
