MKS 651C, Инструкция по эксплуатации, Страница: 82 / 172

How To Request the Pressure Reading Chapter Six: Remote Operation
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How To Request the Pressure Reading
To request the system pressure, issue the request:
R5 ENTER
The 651 controller responds with the message:
P value
where value is % of Full Scale.
For example, if the pressure is 10 Torr for a 10 Torr F.S. unit, then value = 100.
If the pressure is 10 Torr for a 100 Torr F.S. unit, then value = 10.
Converting Pressure Readings to Absolute Pressure Values
To convert pressure readings to absolute pressure values:
1. Request the pressure reading by issuing the request:
R5 ENTER
The 651 controller responds with the message:
P value
where
value
is % of Full Scale.
2. Calculate the absolute pressure using the formula:
Absolute pressure = (
P value/100)
X (Full Scale)
For example, if the pressure reading for a 1000 Torr F.S. unit was reported as 65 (65%),
the absolute pressure is:
Absolute pressure = (65/100) X (1000) = 650 Torr