INFICON HPG400 ATM to High-Vacuum Gauge - Manual (Page 46)

46
tina31e1 (2004-05) HPG400 v1.om
Output signal U
[V] [mbar]
Pressure p
[Torr] [Pa]
0 … 0.5 Sensor error
0.5 … 1.5 Underrange
1.5
2.5
3.5
4.5
5.5
6.5
7.5
1.0Ч10
-6
1.0Ч10
-5
1.0Ч10
-4
1.0Ч10
-3
1.0Ч10 -2
1.0Ч10
-1
1
7.5Ч10
-7
7.5Ч10
-6
7.5Ч10
-5
7.5Ч10
-4
7.5Ч10 -3
7.5Ч10
-2
7.5Ч10 -1
1.0Ч10
-4
1.0Ч10
-3
1.0Ч10
-2
1.0Ч10
-1
1
10
100
7.5 … 8.0 Overrange
8.0 … 8.5 Underrange
8.5
8.75
9.0
9.25
9.5
9.75
1.0Ч10
-2
1.0Ч10
-1
1
10
100
1000
7.5Ч10
-3
7.5Ч10
-2
7.5Ч10
-1
7.5
75
750
1
10
100
1000
10000
100000
9.75 … 10.2 Overrange
For gases other than air, the pressure can be determined by a simple conversion:
p
eff
= K × pressure indicated
Where Gas type K (mean values)
Air (N
2
, O
2
) 1.0
Xe 0.4
Kr 0.5
Ar 0.8
H
2
2.4
Ne 4.1
He 5.9
Conversion table
output signal - pressure
B: Gas Type Dependence
Hot cathode range
(1×10
-6
mbar < p < p
Changeover
)