Atlas™ Series Heated Platens
29
the appliance label (
16
)). Make sure that the power switch (
25
) on the
front of the controller is off when making the connection (the green
coloured tab part of the switch is not showing when off). Also, when
installing and positioning the temperature controller (
24
) make sure in
operation that the power switch (
25
) is easily accessible and that none
of the air vents on the controller casing are blocked. (See
Fig 12.
)
Important Earth Connection
The mains plug must be inserted in a socket outlet provided with a
protective earth contact. The protective action must not be negated by
the use of an extension cord without a protective conductor. If this
apparatus is to be energised via an external auto transformer for
voltage reduction, make sure its common terminal is connected to the
neutral (earthed pole) of the power supply.
Functions and Operation of the Temperature Controller
for the Atlas™ Heated Platens
The top (
1
) and lower (
2
) heated platen assembly power cable leads
are connected to the rear of the temperature controller into the sockets
(
14
) and (
15
) respectively. (See
Fig 10.
).
The thermocouple lead (fitted with a 2 pin plug) from the lower heated
platen assembly (
2
) is connected to the rear of the temperature
controller into socket (
17
). (See
Fig 10
.) Take care that the ‘C’ shaped
inner sleeves of plug and socket are aligned before pressing the plug
in. (Failure to do so can damage the plug and socket).
Note:
The thermocouple has been well secured into position in the
lower heated platen assembly (
2
) to ensure a constant feedback
of the temperature to the controller (
24
) during operation. If the
thermocouple becomes loose or does not make sufficient
contact for registering a correct temperature, then the safety
feature via a
loop alarm
function
(
26
) automatically cuts power
to the heated platens. Without the
loop alarm
it is possible that
continuous power being fed from the controller to the platens
would cause permanent damage due to overheating.
