2.1
SM QUATTRO UNIT
NOTE: For viewing comfort, the SM QUATTRO unit should be positioned at
eye level. It is always good practice to keep electronic equipment away from
cold, heat and electrical plant, as extremes of temperature may reduce the
lifetime of the device, and heavy electrical loads, switches, relays or
contactors too close to the device may cause electrical and electro-magnetic
interference when switched on or off.
2.1.1 Knock out the entries into the moulding to be used for connection, either
behind or under the moulding, whichever is suitable for the particular
installation.
2.1.2 Fasten the screw corresponding to the top centre lug on the back of the SM
QUATTRO moulding, into the wall or panel on which the unit is to be
mounted. Leave a gap of approximately 3mm between the screw head and
the wall. Position the moulding and slot in the lug over the screw.
2.1.3 Level the SM QUATTRO moulding and, if using rear entry, mark the entry
holes in the panel behind the appropriate knock-out entries, as well as the
two lower mounting holes. Remove the moulding, drill the necessary holes in
the panel, assemble any grommets or conduit adapters if used, replace the
moulding and fasten using the two lower screws.
2.2
SENSORS
The
SM QUATTRO
may be used with a variety of sensors of different cable
lengths. If required, sensors are available with extended cable lengths or
alternatively, sensor extenders are available, also in a variety of lengths. If the
sensors need to be extended, but factory-made extenders are not available,
they can be extended using a suitable 4 core or 3 core cable, according to
the diagram shown below.
Please note however, that as with all PT100 sensor applications, a good
connection is vital. It is therefore recommended that wherever there is any
doubt, a factory- extended sensor or sensor extender should be used.
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