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4 Using the Regenerative Power System
To reset the Amp-hours and Watt-hours measurements:
Front Panel Menu Reference
Select Measure\AHWH.
Select Reset to return the measurements to zero.
Digitized Measurements
In addition to the average voltage, current, and power measurements, which are available from both
the front panel and via SCPI commands, digitized measurements can also be returned. Digitized
measurements differ from average measurements because you can select the type of measurement
returned and fine tune the measurement quality.
Measurement Types
The following digitized measurements are available. These can only be measured using the
corresponding SCPI command.
ACDC is a calculation that returns the total RMS measurement (AC + DC).
HIGH level is a calculation that generates a histogram of the waveform using 16 bins between the
maximum and minimum data points. The bin containing the most data points above the 50% point is
the high bin. The average of all the data points in the high bin is returned as the High level. If no high
bin contains more than 1.25% of the total number of acquired points, then the maximum data point is
returned.
LOW level is a calculation that generates a histogram of the waveform using 16 bins between the
maximum and minimum data points. The bin containing the most data points below the 50% point is
the low bin. The average of all the data points in the low bin is returned as the Low level. If no low bin
contains more than 1.25% of the total number of acquired points, then the minimum data point is
returned.
MAX is the maximum value of the digitized measurement.
MIN is the minimum value of the digitized measurement.
Array queries are also available to return ALL values in the voltage and current measurement buffer.
No averaging is applied, only raw data is returned from the buffer.
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SCPI Command
To reset Amp-hours and Watt-hours:
SENS:AHO:RES
SENS:WHO:RES
Keysight RP7900 Series Operating and Service Guide
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