Hearth and Home Technologies Expedition-I Manual page 151

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