Lauda UB 20 - Page 36

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
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Pressing the key in the SHIFT mode (green LED in shift key alight) produces the
display
L
1
CALIBRATE
L
2
T
i
= 0 T
1
= 1 T
2
= 2
The channel to be calibrated is selected with 0, 1 or 2
.
When selecting a channel not in use, e.g. if Pt 100 on T
2
is not connected, the display
shows
L
1
Ext Pt 100 not
L
2
connected.
For calibration a sufficiently accurate reference temperature measurement should be
possible, and the measurement point temperature should be constant.
The display shows
L
1
T
1
61.04°C
L
2
T
C
_ . °C
The value shown in L
1
is the measured value obtained without any correction using
probe and electronics without calibration.
Now enter the real value for the measurement point T
1
(e.g. 60.00°C):
Example 0, 6, 0, 0, 0
T
i
or T
2
can be calibrated in the same way.
In order to avoid dangerous conditions the correction is limited to +5 K. In case of larger
corrections the display shows
L
1
CORRECTION VALUE
L
2
TOO LARGE
and the value entered is not accepted.
You can leave the calibration level with
.