behr TRS 300
– 8 –
271005
behr TRS 300
– 9 –
© behr Labor-Technik 2007
271005
Switching the TRS 300 on
► Set the mains switch (Page 7, 2.3) on the rear
panel of the unit to the „I“ position.
The mains switch on the TRS 300 performs
two functions. It is used, on the one hand, to
switch the unit on and off. There is, in addition,
a fuse integrated into the switch.
This fuse functions similarly to a miniature
circuit-breaker (m.c.b.) familiar from your hou-
sehold wiring system. It interrupts the electrical
circuit if an overcurrent occurs.
Since it is necessary to pretension a spring for
this safety function, the mains switch on the
TRS 300 requires greater force for switching
on than a conventional mains switch.
An initialization message will appear briefly on the
display on the front panel when the unit is swit-
ched on. The main menu appears once the initiali-
zation routine has been completed:
The TRS 300 control unit is now ready for
operation.
Prog 01/01
==>>
022
°C
START
EIN