Inficon VGC083A - CG1 0 - 7 V or CG2 0 - 7 V Analog Output Correction Factors - Convection Gauge

70 tinb29e1-c (2019-10) VGC083A_B.om
When using the Log-Linear convection gauge analog output mode (Log-Linear
0 - 7 V, 1 V/decade) for gases other than N
2
/ Air, use the following look-up table
and information to convert the analog output to pressure. The look-up table has
been derived from the equation provided in section 7.8
True
Pressure
(Torr)
N
2
Ar He O
2
CO
2
KR Freon12 Freon22 D
2
Ne CH
4
1.00E-4
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
2.00E-4
0.301
0.301
0.301
0.301
0.301
0.301
0.301
0.301
0.301
0.301
0.301
5.00E-4
0.699
0.699
0.699
0.699
0.699
0.477
0.699
0.699
0.699
0.699
0.699
1.00E-3
1.000
0.845
0.903
1.000
1.041
0.602
1.176
1.176
1.114
0.845
1.230
2.00E-3
1.301
1.146
1.204
1.301
1.362
1.000
1.491
1.491
1.380
1.176
1.519
5.00E-3
1.699
1.519
1.602
1.699
1.643
1.362
1.881
1.845
1.778
1.544
1.886
1.00E-2
2.000
1.820
1.908
1.987
2.041
1.681
2.167
2.130
2.083
1.851
2.185
2.00E-2
2.301
2.117
2.207
2.297
2.346
1.978
2.476
2.435
2.386
2.149
2.483
5.00E-2
2.699
2.511
2.607
2.692
2.740
2.371
2.860
2.839
2.778
2.542
2.888
1.00E-1
3.000
2.808
2.914
2.988
3.029
2.670
3.155
3.134
3.083
2.845
3.201
2.00E-1
3.301
3.100
3.217
3.288
3.322
2.960
3.439
3.418
3.398
3.149
3.498
5.00E-1
3.699
3.494
3.638
3.687
3.689
3.336
3.786
3.774
3.837
3.555
3.893
1.00E+0
4.000
3.778
3.973
3.987
3.978
3.602
4.021
4.017
4.190
3.872
4.204
2.00E+0
4.301
4.057
4.346
4.288
4.233
3.845
4.210
4.220
4.616
4.201
4.522
5.00E+0
4.699
4.389
6.130
4.697
4.524
4.107
4.389
4.418
6.391
4.719
4.877
1.00E+1
5.000
4.602
5.013
4.696
4.250
4.471
4.530
5.332
5.446
2.00E+1
5.301
4.763
5.348
4.819
4.360
4.521
4.571
6.766
6.550
5.00E+1
5.699
4.895
5.890
4.915
4.410
4.579
4.617
6.925
1.00E+2
6.000
4.946
6.320
4.966
4.438
4.670
4.691
2.00E+2
6.301
4.991
6.470
5.090
4.521
4.777
4.808
3.00E+2
6.477
5.053
6.580
5.228
4.555
4.838
4.876
4.00E+2
6.602
5.130
6.686
5.350
4.595
4.883
4.925
5.00E+2
6.699
5.207
6.781
5.458
4.624
4.918
4.964
6.00E+2
6.778
5.274
6.863
5.561
4.647
4.947
4.998
7.00E+2
6.845
5.338
6.934
5.664
4.667
4.974
5.029
7.60E+2
6.881
5.375
6.974
5.732
4.677
4.989
5.045
8.00E+2
6.903
5.400
6.999
5.774
4.685
4.998
5.057
9.00E+2
6.954
5.455
5.900
4.698
5.021
5.079
1.00E+3
7.000
5.512
6.045
4.706
5.045
5.104
Values listed under each gas type are in volts (V (dc)).
The gas in use is O
2
. Voltage output is 3.288 volts.
True pressure of O
2
is 2.00E-01 Torr
8.3.3.2 CG1 0 - 7 V or CG2 0 - 7 V
Analog Output Correction
Factors - Convection
Gauge
Example