Probewell Lab Inc.
Page •34
4. Loading and Testing
Press “HL.” The load current will increase to 30 A and the disk will start to rotate.
Press “START/STOP” to initiate the test. Measurement will only begin when the
Metercam has picked up the black flag and starts to count the disk revolutions. At
this precise time, the MT-1/WT3 will start to measure the energy passing through
the meter. A double beep will sound, indicating that the test has begun.
In addition to the test parameters appearing on the display, you can see the voltage
and current applied to the meter, the chronometer and the cumulated energy
registered by the electronic standard.
On this display, the MT-1/WT3’s internal electronic standard shows that it has
registered up to now 14.4 Wh (voltage x load x time/3,600). When calculating Wh,
time is expressed in hours.
5. Test Results
The watthour measurement period ends automatically after the 10th disk
revolution, i.e. when the Metercam has registered its 10th revolution. The load is
then automatically removed to stop the disk and the test results are displayed.
The test results show the meter’s accuracy under a 30 A load.
The results can be saved by clicking “YES.”
Once the results are saved, it is possible to repeat the test at PF or LL.
If you do not wish to save the results, press “CANCEL.” You will be returned to the
“Tests” tab. Repeat the test at PF or LL, if desired.
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