48
Doc. Ref. XGC-320-100119
V100 (2019-11)
LINEAR; 0-10 V (dc) Linear Analog Output
The XGC-320 also provides a linear 0-10 V (dc) analog output.
The linear output voltage can be any value between 0.01 V and
10 V corresponding to displayed pressure between 1 mTorr and
1000 Torr. However, the useful range of the linear analog output
is three decades. For example if the minimum pressure selected
is 1 mTorr (1.00×10
-3
Torr) with a corresponding minimum volt-
age output of 0.01 volts, then maximum pressure selected to
correspond to a maximum voltage output of 10 volts should not
exceed 1.00 Torr. If your application requires the analog output
to cover a pressure range exceeding three decades then con-
sider using the log-linear or non-linear analog output. See sec-
tion 7.9 for more detailed explanation.
7.1
Log 1-8; Log-Linear Analog Output Equation
& Table - Torr
Log-Linear 1 to 8 V analog output for selected gases - Engineer-
ing units in Torr (see following table):