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User Manual
15. Option –WHM: Watt Hour Meter measurements
The WHM measurement function can be accessed from the APPLICATIONS screen. Note that the -
WHM option is required for watt-hour measurements. If the –WHM is not installed (refer to the
OPTIONS menu), the watt-hour screen in the APPLICATIONS menu will be inactive.
To start watt-hour measurement, program the required output parameters of the power source and
apply the load. The output relay must be closed. From the APPLICATIONS menu, scroll down to th
WHM entry and press the Enter Key.
This will display the screen shown below. Scroll down using the down arrow key to select the elapsed
time screen.
The following fields are available:
WHM
ST
AT
E: Select this field and
ON
or OF
F.
This will start and st
WATT HR: This field displays the wat
ETIME: This field will accumulate
PREVIOUS SCREEN: Returns to the APPLICATIONS screen.
Note
: Changing from ON to OFF will stop the measurement and will maintain the last data record for
the watt-hour meter. To restart the measurements, the field is to
ON position and the previous data will be reset to zeros.
California Instruments
pr
ess the ENTER key to toggle the watt-hour measurement mod
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e watt-hour measur
t-hour measurement r
the time in hours, minutes and seconds.
ements
.
eado
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ggled to the OFF position from the
2253i / 2253iX
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149
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