Probewell MT-1/WT3, User Manual, Page: 35 / 86

Probewell Lab Inc.
Page • 34
4. Loading and Testing
Press HL, the load current will increase to 30A and the disk will start to rotate. Press
START/STOP to initiate the test. The measurements will begin only when the
Metercam has picked up the black flag and starts to count the disk revolutions. At
this precise time, the MT-1/WT3 starts to measure the energy that passes through
the meter. A double beep is heard, indicating that the test has begun.
In addition to the test parameters appearing on the display, the operator 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 internal electronic standard of the MT-1/WT3 shows that it has
registered up to now 14.4Wh (voltage x load x time/3600). When calculating Wh,
time is expressed in hours.
5. Test Results
The watthour measurement period ends automatically after the 10
th
disk revolution
is completed i.e. when the Metercam has registered its 10 th revolution. Then the load
is removed automatically to stop the disk and test results are displayed.
The test results shows the meter accuracy under a 30A load.
Tests results can be saved by clicking YES .
Once the test is saved, it is possible to repeat the test at PF or LL.
To not save the results, press CANCEL . It will go right back to the Tests tab and it is
possible to repeat the test at PF or LL, if desired.