GE ADTS542F User Manual page 83

ADTS542F/552F/553F/554F User Manual
Equipment Type
Calibration standard
(absolute)
All traceable to national standards.
If a calibration standard with higher uncertainty is used, the ADTS accuracy will be
degraded and may exceed the ADTS sales data sheet specification.
Suggested two-point calibration adjustment points
Calibration points are nominal pressures to allow for slight differences due to primary standard
weights and actual corrected pressure calculations.
• Ps: two point cal points = 1st point is 1128mbar (FS) followed by 92mbar (suggest to be done in this
order).
• Pt: two point cal points = 1st point 92mbar followed by 1997mbar (FS) (suggest to be done in this
order).
Suggested calibration check points
K0553 Revision C
Minimum use specifications
Range:
35 mbar to 2000 mbar absolute
Expanded uncertainty (k = 2):
32ppm of reading +0.007 mbar
(0.0032% of reading +0.70 Pa)
Table 4-3 Calibration equipment uncertainty
Ps (Calibration check points)
92.00 mbar (~55,000ft)
178.74 mbar (~41,000ft)
314.85 mbar (~29,000ft)
465.63 mbar (~20,000ft)
696.82 mbar (~10,000ft)
843.07 mbar (~5,000ft)
1013.25 mbar (~0ft)
1128.03 mbar (~-3,000ft)
- -
- -
Note: ~means approximately
Purpose
Calibration
Pt (Calibration check points)
92.00mbar
178.74mbar
314.85mbar
465.63mbar
696.82mbar
843.07mbar
1013.25mbar
1128.03mbar
1500mbar
1997mbar
4-3