Instrutech CVM-211 User Manual

Instruction Manual InstruTech CVM-211 "Stinger" Convection Vacuum Gauge Module
InstruTech, Inc page 15
Table 2 - Log-Linear Analog Output Voltage vs Pressure, for Selected Gases
The following Stinger part numbers ending with the letter “L” provide a Non-Linear Analog output:
CVM211GAL,CVM211GBL to…CVM211GHL.
True
Pressure
(Torr)
N2 Ar He O2 CO2 Kr Freon12 Freon22 D2 Ne CH4
0.0001 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000
0.0002 1.301 1.301 1.301 1.301 1.301 1.301 1.301 1.301 1.301 1.301 1.301
0.0005 1.699 1.699 1.699 1.699 1.699 1.477 1.699 1.699 1.699 1.699 1.699
0.0010 2.000 1.845 1.903 2.000 2.041 1.602 2.176 2.176 2.114 1.845 2.230
0.0020 2.301 2.146 2.204 2.301 2.362 2.000 2.491 2.491 2.380 2.176 2.519
0.0050 2.699 2.519 2.602 2.699 2.643 2.362 2.881 2.845 2.778 2.544 2.886
0.0100 3.000 2.820 2.908 2.987 3.041 2.681 3.167 3.130 3.083 2.851 3.185
0.0200 3.301 3.117 3.207 3.297 3.346 2.978 3.476 3.435 3.386 3.149 3.483
0.0500 3.699 3.511 3.607 3.692 3.740 3.371 3.860 3.839 3.778 3.542 3.888
0.1000 4.000 3.808 3.914 3.988 4.029 3.670 4.155 4.134 4.083 3.845 4.201
0.2000 4.301 4.100 4.217 4.288 4.322 3.960 4.439 4.418 4.398 4.149 4.498
0.5000 4.699 4.494 4.638 4.687 4.689 4.336 4.786 4.774 4.837 4.555 4.893
1.0000 5.000 4.778 4.973 4.987 4.978 4.602 5.021 5.017 5.190 4.872 5.204
2.0000 5.301 5.057 5.346 5.288 5.233 4.845 5.210 5.220 5.616 5.201 5.522
5.0000 5.699 5.389 6.130 5.697 5.524 5.107 5.389 5.418 7.391 5.719 5.877
10.0000 6.000 5.602 8.041 6.013 5.696 5.250 5.471 5.530 8.041 6.332 6.446
20.0000 6.301 5.763 8.041 6.348 5.819 5.360 5.521 5.571 8.041 7.766 7.550
50.0000 6.699 5.895 8.041 6.890 5.915 5.410 5.579 5.617 8.041 8.041 7.925
100.0000 7.000 5.946 8.041 7.320 5.966 5.438 5.670 5.691 8.041 8.041 8.041
200.0000 7.301 5.991 8.041 7.470 6.090 5.521 5.777 5.808 8.041 8.041 8.041
300.0000 7.477 6.053 8.041 7.580 6.228 5.555 5.838 5.876 8.041 8.041 8.041
400.0000 7.602 6.130 8.041 7.686 6.350 5.595 5.883 5.925 8.041 8.041 8.041
500.0000 7.699 6.207 8.041 7.781 6.458 5.624 5.918 5.964 8.041 8.041 8.041
600.0000 7.778 6.274 8.041 7.863 6.561 5.647 5.947 5.998 8.041 8.041 8.041
700.0000 7.845 6.338 8.041 7.934 6.664 5.667 5.974 6.029 8.041 8.041 8.041
760.0000 7.881 6.375 8.041 7.974 6.732 5.677 5.989 6.045 8.041 8.041 8.041
800.0000 7.903 6.400 8.041 7.999 6.774 5.685 5.998 6.057 8.041 8.041 8.041
900.0000 7.954 6.455 8.041 8.041 6.900 5.698 6.021 6.079 8.041 8.041 8.041
1000.0000 8.000 6.512 8.041 8.041 7.045 5.706 6.045 6.104 8.041 8.041 8.041
The log-linear output signal and pressure are related by the following formulas:
P = 10
(V - 5)
V = log
10
(P) + 5
where P is the pressure in Torr, and V is the output signal in Volts.
The chart on the following page shows the graphical results of the table and formulas above. Pressure is plotted
on the X-axis with a log scale; the output signal is plotted on the Y-axis on a linear scale.

Instrutech CVM-211 Specifications

General

Brand	Instrutech
Model	CVM-211
Category	Control Unit
Language	English