LAUDA Ultra-Thermostats
UB 20(-D), UB 25, UB 50, UB 30, UB 40
UB 20 F, UB 20 J, UB 30 J, UB 40 J, UB 65 J
UB 20 JL, UB 30 JL, UB 40 JL
YATE0013 /10.04.02
- 54 -
Example:
T
i
=
60°C
T
S
=
60°C
T
O
=
65°C
To check the operation of the overtemperature limiter, press
. (SHIFT OFF). Input
T
S
= 20°C, press
, the display shows
L
1
T
i
=
60.00°C C
L
2
T
O
:
65.00°C T
i
I
If T
u
is shown in L
2
, press
again!
Now input 0, 5, 8, 0, 0
.
The switch-off point of the overtemperature limiter is now 2 K below the bath
temperature T
i
.
The display shows the message
L
1
TEMPERATURE
L
2
TOO HIGH!
with a beep. Heating and pump are switched off on all poles.
To restart the unit press the reset key
.
The display shows the standard display.
Now press
and set T
O
to a value above the bath temperature, e.g. 70°C:
Input 0, 7, 0, 0, 0
. Then press the key
once more. The unit returns to normal
operation.
Note: The overtemperature switch-off point has to be set at least 25 K below the fire
point of the bath liquid used according to EN 61010.
In case of any malfunction under Items 9.13.1 and 9.13.2 the unit must immediately be
taken out of use and checked by an engineer, otherwise its safety is no longer ensured.