Sherwood GF55, Manual, Page: 47 / 159

OMNI-Test Laboratories, Inc.
Control No. C-SFAK-0001, Effective date: 12/2/2015
Page 1 of 1
DIFFERENTIAL PRESSURE GAUGE CALIBRATION DATA SHEET
Instrument to be calibrated: Pressure Transducer______________
Maximum Range: 0-
2” WC
ID Number: OMNI-00336
Calibration Instrument: Digital Manometer
ID Number: OMNI-00395
Date: 1/17/2018
By: B. Davis
This form is to be used only in conjunction with Standard Procedure C-SPC.
*Acceptable tolerance is 4%.
The uncertainty of measurement is ±0.4
” WC. This is based on the reference standard having a TAR (Test
Accuracy Ratio) of at least 4:1.
Technician signature: Date: 1/18/2018
Reviewed by:
Date:
Range of
Calibration Point
(
″WC)
Digital
Manometer
Input
(
″WC)
Pressure Gauge
Response
(
″WC)
Difference
(Input -
Response)
% Error of
Full Span
*
0-20% Max. Range
0 - 0.4
0.35 0.362 0.012 0.6
20-40% Max. Range
0.4 - 0.8
0.65 0.672 0.022 1.1
40-60% Max. Range
0.8
– 1.2
1.00 1.024 0.024 1.2
60-80% Max. Range
1.2
– 1.6
1.30 1.340 0.040 2.0
80-100% Max. Range
1.6
– 2.0
1.70 1.749 0.049 2.45
1/19/2018
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