8
Series 5A and Series 5B I.S. Valve Status Monitor
Installation, Operation and Maintenance Manual
Bray Series 5A and 5B I.S. VSMs should be wired
as follows:
1. Remove the cover of the VSM.
2. Remove the conduit plugs (aluminum
housing) or peel-off decal (resin housing).
3. Install appropriate cable or conduit fittings
required to meet application needs, weatherproof
requirements, and hazardous location
requirements.
4. Terminate the field wiring per the wiring
diagram attached to the inside of the cover.
5. Tighten wires in terminal block to 3.5 lb-in
[0.4 Nm].
6. Re-attach VSM cover once position
adjustment has been completed.
a. Tighten cover bolts in a cross pattern to
80 lb-in [9 Nm] for aluminum housing
or 17.7 lb-in [2 Nm] for resin housing.
Reference Cover Installation.
NOTICE
If the valve status monitor is mounted
on a vertical pipe, it is recommended
that the unit be positioned with the
conduit entries on the bottom to prevent
condensation from entering through the
conduits.
In all cases, the conduit should be
positioned to prevent drainage into
the valve status monitor. In some cases
the use of an "S" pipe can be used to
prevent water ingress.
Refer to the figures on the right.
Side Conduit Entries
VSM Imperial Metric
S5A 2 x 1/2" NPT 2 x M20
S5B 2 x 3/4" NPT 2 x M25
Rear Conduit Entry (Resin Only)
S5B 1 x 1/2" NPT 1 x M20
To ensure intrinsic safe operation, use cable ties
to mount field wiring to the printed circuit board.
NOTICE
Do not use power tools to tighten the cover screws.
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