Nor-Cal CDG 160 OP Lit - Manual (Page 24)

24 CDG160-OP-LIT (2010-06)

Evacuate the gauge to a pressure according to the table
below:
F.S.
Recommended final pressure
for zero adjustment
1000 Torr
100 Torr
20 Torr
10 Torr
2 Torr
1 Torr
<5
×10 -2
Torr
<5
×10 -3
Torr
<1
×10 -3
Torr
<5
×10 -4
Torr
<1
×10 -4
Torr
<5
×10 -5
Torr
If the final pressure is too high for zero adjustment (>25%
of the F.S.), the zero cannot be reached and the
LED blinks green. If this is the case, activate
the factory setting and adjust the zero again (
→  30).

Operate the gauge for at least 2 hours under constant
ambient conditions (until the signal is stable).

Briefly press the button with a pin (max.
ø1.1 mm). The zero adjustment runs automatically. The
LED blinks until the adjustment (duration
≤8 s)
is completed.
Press the button briefly
max. ø1.1 mm