2.1
SM DUE UNIT
NOTE: For viewing comfort, the SM DUE 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 .2.2 Fasten the screw corresponding to the top centre lug on the back of the SM
DUE 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.
2.2.3 Level the SM DUE 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
Temperature sensors, SX
TM
PT100 are used with all Thermomax units. They
are available in lengths from 5m to 100m, as are the sensor extenders, and
all come with a 4-way telephone plug. Each sensor comes with an original
Thermomax calibration certificate. The standard sensor can measure
temperatures from +50°C / -50°C.
Note:
Using suitable 3-core or 4-core cable, the sensor can be extended,
according to the diagram shown below.
Note:
In doing this, Thermomax calibration is removed.
The standard sensors PT100 are not suitable for use in acidic or alkaline
environments and should not be used in fluids.
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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