Gauge Manufacturer:
Maximum Range (inH
2
O):
Instrument ID #:
Calibration Date:
Calibration Expiration:
Barometric Pressure: 30.10
in. Hg
Manufacturer: Dwyer
Model: 477AV-1
Instrument ID#: 174
Calibration Expiration Date: 10/8/2021
Calibration Point (inH
2
O)
Reference Gauge
Reading (inH2O)
Pressure Gauge
Reading (inH2O)
Difference
(Reference - UUT)
% Error of Full
Range
0.0 - 0.6
0.55
0.58
0.03
1.0%
0.6 - 1.2
1.12
1.15
0.03
1.0%
1.2 - 1.8
1.77
1.81
0.04
1.3%
1.8 - 2.4
2.13
2.16
0.03
1.0%
2.4 - 3.0
2.88
2.94
0.064
2.1%
Acceptable tolerance is 4%
Technican Signature:
Date:
3/16/2021
Uncertainty is 0.4 inH
2
O, based on minumum uncertainity ration of 4:1 between standard reference meter and
unit under test.
3/16/2022
3/16/2021
Pressure Gauge Calibration Work Sheet
Apex
3
130 (dH)
Reference Standard Gauge
PFS-TECO
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