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
- 30 -
Here the changed value must be confirmed with input
or, if no modification is
requested, the initial value can be unscrambled again with input
. As default value
0 is preset.
This interrogation was introduced in order to reach an additional protection from
unintentional adjusting of the over-temperature switch-off point.
It is obviously essential to select a value above the current bath temperature (T
i
) and the
current setpoint (T
S
), otherwise the equipment is switched off by the safety circuit with
L
1
TEMPERATURE
L
2
TOO HIGH!
or the message
L
2
T
S
>>
T
O
and the value is not accepted.
With activated outflow temperature limit Tio To must always be 5°C higher than Tio.
Otherwise announcement
Tio >> To –5°C.
If the unit was switched off in the fault status an audible signal reports the stored fault
when switching on.
Press the reset key
. Depending on the previous sequence press
again.
If necessary check whether the overtemperature switch-off point T
O
is above the current
bath temperature and whether the bath is filled sufficiently !
9.3.5
Low temperature switch-off point
Press the key
(SHIFT OFF) to indicate the current low temperature switch-off
point T
U
. If T
O
is indicated press
again to bring T
U
on the display.
L
2
T
U
:
_-10.00°C
T
U
= low temperature switch-off point
T
U
can be set up to 10 K below the working temperature range of the unit.
If the bath temperature falls below T
U
, T
U
appears on the display in L
2
so that a new
value can be input if necessary. T
U
operates as a setpoint limitation and as a signal.