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WARNING:
(All provers except 10M/2M)
Restarting a test using the 80M, 20M, or Mobile 5 Master Meter
of the ROOTS
®
Model 5 Prover will allow you to restart a test before the main valve has fully closed. If the
main blower starts before the main valve has fully closed, both the Master Meter and the connected Field
Meter can be stressed/damaged due to the possibility of a sudden surge of air through the system. Always
allow enough time for the main valve to fully close before making flow selection, or press <Ctrl+F2> prior to
pressing Restart Test. This will take the user back to the Test Configuration screen and initialize the Prover.
• Exit Test – This command will stop testing and return the user to the Test Configuration screen.
• View Report – The report can be viewed at any time during and after a testing sequence,
but the testing must be stopped either by issuing a Stop Test command or by waiting until
the end of the test cycle. Any tests that have not been completed will show false zeroes
in the test report.
The Information Box is located on the bottom right of the screen. It displays the current test information and
also prompts the user for specific action, if required. The Error Box is located on the bottom left portion of
the screen and displays any problems or errors that may arise (See Problem Identification and Resolution).
The Test Flows box shows the flow rates for this particular sequence of tests. This box is important when
a Stop Test command is initiated. If no selection is made prior to the Restart Test command, then the test
sequences will restart at the first flow entry. You also have the option to start at any other flow rate if desired;
but the testing will start at the selected flow and continue for all other flows below it.
The Repeat box displays the number of times that the test will be repeated after the initial test. The number
of repeats was determined when the test was configured (See section 5.9 Selecting the Number of
Test Repeats).
7.4 System Readouts
1. Ambient Pressure
– the reading of the absolute ambient pressure as read by the atmospheric
pressure transducer located in the Model 5 Controller.
2. Master Flow
– the current reading of the flow rate as indicated by the Master Meter.
This flow must meet the current set flow rate as indicated in the status box at the lower right
portion of the screen before the test started or you will get the error message “Failure to Reach
Flow Rate”.
3. Est. Test Time(s)
– the estimated time of completion of the current test in progress.
It does not indicate the total time of all the test sequences combined.
4. Master Pressure
– the reading of the pressure at the inlet of the Master Meter as read
by a pressure transducer in the Model 5 Controller.
5. Master Differential
– the reading of the pressure drop or differential across the Master Meter
as read by a pressure transducer in the Model 5 Controller (Must always be positive).
6. Master Volume
– the current volume of air that has passed through the Master Meter
for this test. Note that this is a raw number and has not been corrected with respect to Temp,
Pressure, or Master Meter offset. The Model 5 system uses electronic pulses from the Field
Meter to start and stop a test, therefore the final Master Volume readout is contingent on the
system and Field Meter accuracies. If the system and Field Meter were both 100 percent
accurate, then the Master Volume reading would match the preconfigured ‘Test Volume’ as
shown on the middle right side of the Run screen.
