Display - Mbar - Instrutech VGC301A User Manual

Instruction Manual

6.2 Display - mbar

Table below shows the displayed readings at various pressures for selected gases when engineering units
selected is in mbar.
Displayed Pressure Readings vs. Pressure for selected gases - Engineering units in mbar
True Pressure N
2
0 mbar 0.0
.0001 mbar .0001
.0003 mbar .0003
.0006 mbar .0006
.0013 mbar .0013
.0027 mbar .0027
.0067 mbar .0067
.0133 mbar .0133
.0260 mbar .0260
.0666 mbar .0666
0.130 mbar 0.130
0.260 mbar 0.260
0.666 mbar 0.666
1.33 mbar 1.33
2.66 mbar 2.66
6.66 mbar 6.66
13.3 mbar 13.3
26.6 mbar 26.6
66.6 mbar 66.6
133 mbar 133
266 mbar 266
400 mbar 400
533 mbar 533
666 mbar 666
800 mbar 800
933 mbar 933
1011 mbar 1011
1060 mbar 1060
1190 mbar 1019
1330 mbar 1330
Notes:
1) OP = Overpressure indication; display will read "overpressure".
Examples:
1) Gas used is nitrogen. Display shows pressure measurement of 13.3 mbar. True pressure of nitrogen is 13.3 mbar.
2) Gas used is argon. Display shows pressure measurement of 11.7 mbar. True pressure of argon is 133 mbar.
3) Gas used is CO . Display shows pressure measurement of .0731 mbar. True pressure of CO
2
InstruTech, Inc.
Ar He O
2
0.0 0.0 0.0
.0001 .0001 .0001
.0003 .0003 .0003
.0006 .0006 .0006
.0009 .0011 .0013 .0015
.0019 .0021 .0027
.0044 .0053 .0067
.0088 .0107 .0129
.0174 .0214 .0263
.0431 .0539 .0655
.0857 0.110 0.120
0.160 0.210 0.250
0.410 0.570 0.640
0.790 1.25 1.29
1.51 2.95 2.58
3.26 17.9 6.63
5.33 OP 13.7
7.73 OP 29.7
10.4 OP 103
11.7 OP 278
13.0 OP 393
15.0 OP 506
17.9 OP 646
21.4 OP 805
25.0 OP 973
29.0 OP 1140
31.5 OP 1250
33.4 OP 1320
37.9 OP OP
43.3 OP OP
Values listed under each gas type are in mbar.
CO KR Freon12
2
0.0 0.0 0.0
.0001 .0001 .0001
.0003 .0003 .0003
.0006 .0004 .0006
.0005 .0020
.0031 .0013 .0041
.0059 .0031 .0101
.0146 .0064 .0195
.0295 .0126 .0398
.0731 .0313 .0966
0.140 .0623 0.190
0.270 0.120 0.360
0.650 0.280 0.810
1.26 0.530 1.39
2.27 0.930 2.15
4.45 1.70 3.26
6.62 2.37 3.94
8.78 3.05 4.42
10.9 3.42 5.05
12.3 3.65 6.23
16.3 4.42 7.98
22.5 4.78 9.18
29.8 5.25 10.1
38.2 5.61 11.0
48.5 5.91 11.8
61.4 6.19 12.5
71.8 6.33 13.0
79.1 6.45 13.2
105 6.65 13.9
147 6.77 14.7
VGC301A Controller
Freon22 D Ne
2
0.0 0.0 0.0
.0001 .0001 .0001
.0003 .0003 .0003
.0006 .0006 .0006
.0020 .0017 .0009
.0041 .0032 .0020
.0093 .0080 .0047
.0179 .0161 .0095
.0362 .0323 .0187
.0919 .0799 .0463
0.180 0.160 0.100
0.340 0.330 0.180
0.790 0.91 0.470
1.38 2.06 0.990
2.21 5.50 2.11
3.49 327 6.98
4.51 OP 28.6
4.95 OP 778
5.51 OP OP
6.54 OP OP
8.55 OP OP
10.0 OP OP
11.2 OP OP
12.2 OP OP
13.2 OP OP
14.2 OP OP
14.7 OP OP
15.1 OP OP
16.0 OP OP
16.9 OP OP
is .0666 mbar.
2
CH
4
0.0
.0001
.0003
.0006
.0023
.0044
.0102
.0203
.0405
0.100
0.210
0.410
1.04
2.13
4.43
10.0
37.1
473
1012
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
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