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Table 3-4
Equations for calculating N
Segment
Output voltage
1
0.375 to 2.842 V
2
2.842 to 4.945 V
3
4.94 to 5.659 V
®
Convectron
ATM Vacuum Gauge Module Instruction Manual
or air pressure versus analog output voltage
2
• To convert Torr to mbar, multiply "y" by 1.333
• To convert Torr to Pa, multiply "y" by 133.3
Equation where y = pressure in Torr and x = voltage
y
=
a
+
bx
+
cx
a
+
cx
+
y
=
--------------------------------------------
1
+
bx
+
dx
a
+
cx
y
=
------------------------------ -
1
+
bx
+
dx
2
3
4
5
+
dx
+
ex
+
fx
2
ex
2
3
+
fx
2
Analog Module Operation
Coefficients
a
–0.02585
b
0.03767
c
0.04563
d
0.1151
e
–0.04158
f
0.008737
a
0.1031
b
–0.3986
c
–0.02322
d
0.07438
e
0.07229
f
–0.006866
a
100.624
b
–0.37679
c
–20.5623
d
0.0348656
19
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