Hearth and Home Technologies Expedition-I Manual page 148

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
129 (dH)
3/16/2021
3/16/2022
Reference Gauge
Reading (inH2O)
0.45
1.01
1.59
2.06
2.78
in. Hg
Pressure Gauge
Reading (inH2O) (Reference - UUT)
0.51
1.06
1.63
2.12
2.84
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Difference % Error of Full
Range
0.06
0.05
0.04
0.06
0.06
Acceptable tolerance is 4%
Date: 3/16/2021
2.0%
1.7%
1.3%
2.0%
2.0%