tina84e1-a (2019-07)
25
•
the digital input "Remote Zero": Apply the supply
voltage to pin 10 (pulse
→
•
an INFICON Vacuum Gauge Controller (VGC series).
While the gauge is being heated and/or under atmos-
pheric pressure, the zeroing function is locked in order
for operating errors to be prevented.
Evacuate the gauge to a pressure according to the table
below:
F.S.
Recommended final pressure for
zero adjustment
1100 mbar
1000 Torr
500 Torr/mbar
200 Torr/mbar
100 Torr/mbar
50 Torr/mbar
20 Torr/mbar
10 Torr/mbar
5 Torr/mbar
2 Torr/mbar
1 Torr/mbar
0.5 Torr/mbar
0.25 Torr/mbar
0.1 Torr/mbar
0.05 Torr/mbar
0.02 Torr/mbar
0.01 Torr
−
<5×10
-2
Torr
<3×10
-2
Torr
<1×10
-2
Torr
<5×10
-3
Torr
<3×10
-3
Torr
<1×10
-3
Torr
<5×10
-4
Torr
<3×10
-4
Torr
<1×10
-4
Torr
<5×10
-5
Torr
<3×10
-5
Torr
<1×10
-5
Torr
<5×10
-6
Torr
<3×10
-6
Torr
<1×10
-6
Torr
<5×10
-7
Torr
<7×10
0
Pa
<7×10
0
Pa
<4×10
0
Pa
<2×10
-0
Pa
<7×10
-1
Pa
<4×10
-1
Pa
<2×10
-1
Pa
<7×10
-2
Pa
<4×10
-2
Pa
<2×10
-2
Pa
<7×10
-3
Pa
<4×10
-3
Pa
<2×10
-3
Pa
<7×10
-4
Pa
<4×10
-4
Pa
<2×10
-4
Pa
<7×10
-5
Pa
<7×10
-2
mbar
−
<4×10
-2
mbar
<2×10
-2
mbar
<7×10
-3
mbar
<4×10
-3
mbar
<2×10
-3
mbar
<7×10
-4
mbar
<4×10
-4
mbar
<2×10
-4
mbar
<7×10
-5
mbar
<4×10
-5
mbar
<2×10
-5
mbar
<7×10
-6
mbar
<4×10
-6
mbar
<2×10
-6
mbar
−
If the final pressure is too high for zero adjustment (>25%
of the F.S.), the zero cannot be reached and the
<STATUS> LED blinks green. If this is the case, activate
the factory setting and adjust the zero again (
→
Operate the gauge for at least 2 hours (until the signal is
stable).
