GE ADTS 542 Instruction Manual page 154

C
ALIBRATION PROCESS
ADTS552/553/554F
Pneumatic pressure
* first year calibration period dependent on calibration option selected at time of product purchase
Table 4-2: Calibration requirements ADTS552/553/554F
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.
Table 4-3: Calibration equipment uncertainty
152
Accuracy specifications(k =
2, 95%
uncertainty)Include8s: NL, H
and R over the ADTS
operating temperature
range and calibration
stability over 18 months*
and calibration equipment
uncertainty stated in Table
4-3
Ps Range:
72 mbar to 1130 mbar
absolute (EALT option 57
mbar)
Accuracy:
Refer to current product data
sheet
Pt Range:
72 mbar to 1997 mbar
absolute (EALT option 57
mbar)
Accuracy:
Refer to current product data
sheet
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)
Test method
Compared against calibration
standard
Purpose
Calibration