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L. Analog Output
The analog output is calculated from the value of the digital display. The output is logarithmic,
0.5 volt/decade; the source impedance for the output is 10 K ohm. The output voltage is calculated
from:
V=0.500(log
10
P)
where V is the Analog Output in volts; P is the pressure in mtorr or µbar.
The pressure as a function of the Analog Output voltage is:
P=log
-1
(2V)
or
P=10
(2V)
where P is pressure in mtorr or µbar; V is the Analog Output in volts.
Some examples follow; because of normal tolerances in the electronics, there may be minor dif-
ferences in the values you observe compared to those shown:
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