Specifications

Excess Temperature Protection
14.1 .1 Setting the excess temperature
The cut-off point is set with the excess temperature dial with
a rough scale
of temperature values arranged around it. This
scale, of course, can only serve as an approximate setting
meansfor this cut-off point. However, the cut-off point can be
determined to act exactly if the following procedure is ad-
hered to:
If for instance
a bath liquid has a fire point of 60°C the unit
should cut off after reaching 35°C at the latest:
a First set the desired set value to exactly 35°C.
@ After the circulator has reached this temperature, turn
the excess temperature dial backwards very slowly (to
the left) until the unit cuts off (acoustic signal, alarm is
flashing).
Then set the set temperature to the actual temperature
(< 35°C).
@ Reset the unit via the reset key after the heat transfer
liquid has cooled down somewhat.
- The unit can now be used for temperatures below
35°C. As soon as
35°C is reached, it is securely
switched off.
14.1.2 Testing the cut-off point
Set the set temperature to a higher value than 35"C, set the
unit to heat up and watch the digital display. The value indi-
cated when the alarm goes on is the real cut-off temperature.