Chapter Two: Installation
How To Check the Transducer Zero
19
Highest Pressure for Proper Zero Adjustment
Full Scale Range
Pressure
1 Torr
<5 x 10
-5
Torr
10 Torr
< 5 x 10
-4
Torr
100 Torr
< 5 x 10
-3
Torr
500 Torr
< 5 x 10
-3
Torr
1000 Torr
< 5 x 10
-2
Torr
30 psia
< 1 x 10
-3
psia
100 psia
< 5 x 10
-3
psia
500 psia
< 2 x 10
-2
psia
Table 6: Highest Pressure for Proper Zero Adjustment
Span Adjustment
The span setting may require adjustment periodically. Only adjust the
SPAN
pot in conjunction
with a calibration transfer standard.
Do not
adjust the span setting if a calibration transfer
standard is not available. Instead, send the unit back to an MKS Service Center for calibration.
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