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VW Piezometer Calibration Report <br />Customer <br />Buckhom Geotech Serial No. <br />82415 T <br />Cust. No. <br />38188 Part No. <br />52611030 <br />Order No. <br />17197 Range <br />0 -100 PSI <br />Date <br />10- May -05 Cable <br />50613524 <br />Cal. By. <br />kb Length <br />500 ft <br />Note <br />Units <br />Conversion Factors for Serial No. 82415 T <br />Referenced To Standard Atmosphere* <br />Manual ABC Factors IDA ABC Factors <br />Units <br />A B C <br />A B <br />C <br />1 <br />psi <br />- 0.000019940 - 0.011229 219.90 <br />- 35.448 - 14.972 <br />219.90 <br />ft H2O <br />- 0.000045994 - 0.025901 507.24 <br />- 81.767 - 34.535 <br />507.24 <br />kN /m2 (kPa) <br />- 0.00013748 - 0.077421 1516.2 <br />- 244.41 - 103.23 <br />1516.2 <br />m H2O <br />- 0.000014019 - 0.0078947 154.61 <br />- 24.923 - 10.526 <br />154.61 <br />bar <br />- 0.0000013748 -0.00077421 15.162 <br />- 2.4441 - 1.0323 <br />15.162 <br />kg /cm2 <br />-0.0000014019 - 0.00078947 15.461 <br />- 2.4923 - 1.0526 <br />15.461 <br />j <br />IF Factor= T <br />Temp. Coefficents (m = 0.0100 PSI / °C, b = -0.202 PSI) TempOffset: -0.2 *C <br />Test Data <br />Referenced To Standard Atmosphere* <br />PSI Frequency % FS Error <br />-5.0 3088.39 -0.03 <br />0.0 3051.24 0.00 <br />10.0 2975.17 0.01 <br />20.0 2897.44 0.03 <br />30.0 2817.50 0.03 <br />40.0 2735.46 0.02 <br />J <br />50.0 2651.06 0.01 <br />60.0 2564.13 -0.01 <br />70.0 2474.44 -0.02 <br />80.0 2381.85 -0.03 <br />90.0 2286.14 -0.01 <br />100.0 2187.17 0.05 <br />Calibrated at = 20.7 °C Thermistor Reading = 20.5 °C <br />*Standard Atmosphere = 14.696 psi, 1013 millibar. <br />J <br />