Results Tab

The Results tab stores testing information, such as the type of test, when it was performed, and measurements taken during the test. It also contains a grid that stores information about the flowed hydrants and their measurements.

Field Name

Special Function

Test Time

The Test Time field is automatically populated with the total testing time (in minutes). This is based on:

Test Time = Start Time - End Time

Test Static (psi)

This field stores the pressure reading of the residual hydrant before the test began.

Note: The data in this field is used to find the Half Static Press value and calculate the Flow at 20 psi.

Residual (psi)

This field stores the pressure reading during the testing.

Note: The data in this field is used to calculate the Flow at 20 psi and the Flow at Half.

Discharge (gpm)

This sums all the values in the Discharge of Q fields in the Flow Hydrants grid.

Note: Click in the field and press F5 to calculate. This function is only effective if the test occurred on multiple flowed hydrants.

Volume (gal)

This field stores the total amount (in gallons) of water displaced during the test. This is based on the data in the Volume Released field in each flowed hydrant result record.

Note: Click in the field and press F5 to calculate. This function can be used regardless of how many flow hydrants were tested.

Half Static Press

This field is disabled if the Test Static (psi) field value is greater than or equal to 40. If the Test Static (psi) field value is less than 40, then this field is auto-populated with half the value of the Test Static (psi) field.

Flow at 20 psi

This field is auto-calculated based on the Discharge, Test Static, and Residual fields.

Flow at 20psi = Discharge * [(Test Static -20) / (Test Static - Residual)]^.54

Flow at Half

This field is auto-calculated based on the Discharge, Half Static Press, and Residual fields.

Flow at Half = Discharge * [(Half Static Press -20) / (Half Static Press - Residual)]^.54

Flow Hydrant Grid

This grid stores information about each hydrant that is allowed to flow during the flow test and helps determine the total volume released from each of the flowed hydrants.

A sample of the grid appears below. Sort records in the grid by clicking on the headings. An up or down arrow (highlighted in orange below) will appear signifying ascending or descending order.

How To

Right click in the grid and select Add Record. The following window will appear:
Enter they Hydrant Number. Click the caption button or click in the field and push F9 for a pop-up list of hydrants to select from.
Enter the Pitot Pressure reading.
- This field must be populated for the Discharge or Q to be calculated.
  Note: If you know the orifice factor, skip ahead to step 5.
Method 1 - If the Orifice Factor is not know use this method to calculate the Discharge of Q.
- Fill out the Nozzle Size and Q Coefficient.
- The Unit Conv Factor field defaults to 29.8 SAE (0.111 SI). However, it can be modified.
- All three of these fields must be populated for the Discharge or Q field to be calculated. The Discharge or Q will then be calculated as follows:
  Discharge = Unit Conv Factor * Q coefficient * (nozzle size)^2 * square root of Pitot Pressure reading
Method 2 - Enter the Orifice Factor. The Discharge or Q will then be calculated as follows:
Discharge = Orifice Factor * square root of Pitot Pressure reading
Enter the Starting Time and Ending Time. The Total Test Time will be auto-calculated (in minutes) based on the data in these fields. The Total Test Time can also be manually populated.
Upon entering a Total Test Time, the Volume Released is calculated as follows:
Volume Released = Discharge * Total Test Time
Save and Close the record.