Maximum y Deviation 0.003 TRUE
0.979 N/A
Acceptable dH@ Deviation N/A
Calibration Date: 01/17/18 Maximum dH@ Deviation N/A N/A
Calibrated by: B. Davis Acceptance
Acceptable
Calibration Frequency: Six months
Next Calibration Due: 1/18/2018
Instrument Range: 1.000 cfm
Standard Temp.: 68 oF Reference Standard *
Standard Press.: 29.92 "Hg Standard Model Standard Test Meter
Barometric Press., Pb: 29.94 "Hg Calibrator S/N OMNI-00001
Signature/Date: 1/17/2018 Calib. Date 30-Oct-17
Calib. Value 0.9977 y factor (ref)
Calibration Parameters Run 1 Run 2 Run 3
Reference Meter Pressure ("H2O), Pr 0.00 0.00 0.00
DGM Pressure ("H2O), Pd 1.95 1.20 0.80
Initial Reference Meter 223.4 231.9 238
Final Reference Meter 231.7 237.9 243.503
Initial DGM 0 0 0
Final DGM 8.517 6.215 5.713
Temp. Ref. Meter (°F), Tr 68.0 69.1 68.6
Temperature DGM (°F), Td 76.0 78.0 79.0
Time (min) 39.8 36.5 37.0
Net Volume Ref. Meter, Vr 8.300 6.000 5.503
Net Volume DGM, Vd
8.517 6.215 5.713
Gas Meter y Factor =
0.982 0.977 0.978
Gas Meter y Factor Deviation (from avg.)
0.003 0.002 0.001
Orifice dH@
N/A N/A N/A
Orifice dH@ Deviation (from avg.)
N/A N/A N/A
where:
1. Deviation = |Average value for all runs - current run value|
** 2. y = [Vr x (y factor (ref)) x (Pb + (Pr/ 13.6)) x (Td + 460) ]/ [Vd x (Pb + (Pd / 13.6)) x (Tr + 460)]
** 3. dH@ = 0.0317 x Pd / (Pb (Td + 460)) x [ (Tr + 460) x time) / Vr ]^2
* Reference calibration is traceable to NIST through NIST Test # 40674, Kimble ASTM E1272, or NIST traceable laboratory
** Equations come from EPA Method 5
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