8-31
the signal should be as follows:
When read, this Register returns the state of the Voltage Calibration. Avalue of 0x00000 means that
Voltage Calibration is not taking place. Any other value indicates that Voltage Calibration is taking
place. The 120 VInput should be maintained until this Register reads 0x00000, which should take
up to 20 seconds, depending on the Programmable Settings.
Current Calibration (57384): When written, this Register initiates a calibration of the Current
Channels of the Waveform Capture section of the EPM Main Unit. An accurate and stable 60Hz
sinusoial voltage input should be applied to all current channels of the unit prior to the writing of
this register. Phase relationships between the current channels are immaterial. The magnitude of the
signal should be as follows:
When read, this Register returns the State of the Current Calibration. Avalue of 0x00000 means
that Current Calibration is not taking place. Any other value indicates that Voltage Calibration is
taking place. The 120 VInput should be maintained until this Register reads 0x00000, which
should take up to 20 seconds, depending on the Programmable Settings.
Calibration Waveform - DC Offset (57385): This Register is currently not used.
Reset Time of Use Current Season and Current Month (57386): When written, Time of Use
Current Season and Current Month will reset.
Manual Waveform Capture (57387): When written, the unit captures a waveform.
Reset Internal Input Accumulations and Aggregations (57388): When written, Internal Input
Accumulations and Aggregations will reset.
Override Data not yet Valid Block (57389): This Register is for diagnostics of communication
between two microprocessors in the meter.
Model Input RMS
EPM 9650 Standard (5 A) Current Input 5 ARMS
EPM 9650 1 ACurrent Input 1 ARMS
EPM 9800 Standard (5 A) Current Input 5 ARMS
Current Calibration Inputs
EPM 9800 1 ACurrent Input 1 ARMS
Model Input RMS
EPM 9650 Standard (120 V) Voltage Input 120 V RMS
EPM 9650 G G ( 300 V) Voltage Input 240 V RMS
EPM 9800 Standard (120 V) Voltage Input 120 V RMS
Voltage Calibration Inputs