The Calibrated Meter Method Tab fields calculate the total volume displaced during the meter testing and the accuracy of the meter based on the testing results and the meter tester data you enter.
Enter the flow rate (gpm) during the test in the Flow Rate fields (highlighted in green above).
Enter the volume at the start of the test in the Start fields (highlighted in blue above).
Enter the volume at the time the test was stopped in the Stop fields (highlighted in yellow above).
The total volume is then calculated based on those values (Stop minus Start).
You can then enter the tester data the same way in the Tester Volume fields.
In the Tester Accuracy field, enter the value that you think most represents your testing meter accuracy (highlighted in pink above). For example, if your meter is 100% accurate, enter a 1 in this field. If your meter is running a little bit low, say at 98%, enter a .98 in this field.
The meter accuracy fields (Initial and Final testing) are calculated as follows:
High Accuracy = Meter Volume / (Tester Volume * Tester Accuracy)
Medium and Low Accuracy = Meter Volume / Tester Volume
Average = (High + Med + Low) / 3
Final flow test data should be entered in the corresponding fields in the same manner described above.
Note: If the Total Volume and Meter Accuracy fields are not displaying the calculated values, tab out of or click away from the fields used in the calculation. The values will then be displayed.
