Lauda RA 12, Operating Instructions Manual, Page: 29 / 52

7/2022 Alpha 29 / 52
7.8 Offset for the internal temperature probe CAL
Keep attention: All change done here cause the loss of factory calibration!
Calibration should only be activated if a sufficiently accurate temperature measurement device is available as reference.
If, during checking with a calibrated reference thermometer, (for example from the LAUDA DigiCal Series), a devia-
tion is found, then the offset (i.e. the additive part of the characteristic) of the internal measuring chain can be adjusted
with the following function. The reference thermometer must be dipped into the bath according to the details on the
calibration certificate. Only offset values of
±
5 Kelvin are accepted. Switching on the unit, the last used CAL value is
preloaded again.
5x to
CAL
and 1x longer than
3 seconds.

Call the option
CAL
.
or

Display flashes. Enter the value of the reference thermometer.

The selected value is displayed flashing.
Wait 4 seconds or

Display flashes 4 s

new value is accepted automatically,
or

value is immediately accepted with the <Enter> key.
7.9 Restoring works settings dEF
If you would like to restore all the works settings except the probe calibrations
CAL
…
6x to
dEF
and 1x
 call the works settings
dEF
.

dEF
is flashing.
3 seconds long

Press <Enter> more than 3 seconds (display flickering).

After button release the changeover is acknowledged with
donE
, the unit
returns back to the mode “Bath temperatur”.


Reset Values: Set = 25 °C, Hi = 105 °C, Lo = -30 °C, Cool = Auto
d E F