ProMinent DULCOTEST DT1B Operating Manual page 46

Calibration
Return to the factory calibration
Returning from user adjustment
to factory calibration is only
possible simultaneously for all
methods.
With a method adjusted by the
user, when the result is shown
in the display, an arrow
appears in the [Cal] position.
Proceed as follows to return the
device to the factory calibration, pro‐
ceed as follows:
1. Device is switched off. Simulta‐
neously press
[ZERO/TEST]
2. Switch the device on using the
[ON/OFF] key
ð After approximately 1
second, release
[ZERO/TEST] .
and
3. The display toggles between:
[SEL] and [CAL]
ð The device is in the as-sup‐
plied condition (
for Select).
4. or
5. The display toggles between:
[SEL] and [cAL]
46
[MODE] and
[MODE]
[SEL] stands
ð The device operates with an
adjustment performed by
the user. If the user adjust‐
ment is to be retained,
switch off the device using
[ON/OFF] key.
the
[MODE] lets you
6. Pressing
simultaneously activate factory
calibration for all methods
7. The display toggles between
[SEL] and [CAL]
8. Switch the device off using the
[ON/OFF] key