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Field calibration, Field calibration 13 – Badger Meter Test Equipment User Manual

Page 13

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FIELD CALIBRATION

Field calibration consists of determining the exact transmitter pulse output per unit of measure for your particular meter/

transmitter combination and then using this value as the transmitter pulse output value when calculating the counter and

time base values The procedure is as follows:
1 Set the Totalizer Scale Factor (Program Mode 1) to 01.0000
2 Set the Totalizer Decimal Point (Program Mode 2) to 000000
3 Reset the counter to 0
4 Run fluid into a weigh tank or into a calibrated vessel
5 Determine the number of pulses per gallon by dividing the indicator reading by the number of gallons of fluid in the

vessel Use this value for your calculations

Example: You programmed the indicator for calibration and connected the outlet of a 1" OP meter to a calibrated vessel You

opened the valve and allowed fluid to flow into the vessel You determined that there were 22 35 gallons of fluid in the vessel

The reading on the indicator is 1720

1720 / 22.35 = 76.95

The transmitter output is 76 95 pulses per gallon Use 76 95 when calculating the

“Totalizer scale factor” on page 10

User Manual

Page 13

September 2013