Lauda UB 20 - Page 50

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
- 50 -
The unit may switch to fault if the input signal is not connected. If this is the case it is
necessary to connect the input signal first. Then press the reset key
and calibrate
in the same way as described above.
Select recalibration with 1
.
The display shows
L
1
SET U
min
L
2
YES = 1
When the voltage or current corresponding to the lower range limit is applied to the
input, confirm this by input of 1 .
The display shows
L
1
------------wait------------
L
2
XXXXXXXXXXXXXX
The calibration takes approx. 20 sec. The display then shows
L
1
SET U
max
L
2
YES = 1
When the voltage or current corresponding to the upper range limit is applied to the
input, confirm this by input of 1 .
The display shows
L
1
------------wait------------
L
2
XXXXXXXXXXXXXX
The calibration takes approx. 60 sec. The display then returns to the standard display.
The calibration is finished.
Switch-on the external setpoint from an analogue input as described in Item 9.11.2.