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7. Low Range Power (P-LO) Calibration: Press “︿” or “﹀” key from the Frequency display to
select “P-LO". Connect a variable resistor as load and a calibrated true RMS Power Meter
on one of the output socket and press TEST key in order to activate the CPU to read a low
range offset power and send a 120VAC output voltage. The accurate RMS Power meter
will indicate an actual power value while the Current display on the AC Power Source will
indicate a necessary value needed to be calibrated. Adjust the load or voltage to get the
reading from the RMS Power Meter to be 3KW. By using the power value from the RMS
Power Meter, press “︿” or “﹀” key from the Current display to scroll the display, which
indicates the power value, in order to set the power according to the RMS Power Meter.
After it is done, press “LOCK/LOCAL” to save the data stored and the low range power
calibration is completed.
8. High Range Power (P-HI) Calibration: Press “︿” or “﹀” key from the Frequency display to
select “P-HI". Connect a variable resistor as load and a calibrated true RMS Power Meter
on one of the output socket and press TEST key in order to activate the CPU to read a high
range offset power and send a 120VAC output voltage. The accurate RMS Power Meter
will indicate an actual power value while the Current display on the AC Power Source will
indicate a necessary value needed to be calibrated. Adjust the load or voltage to get the
reading from the power meter for the output power value. Using the power value from
the RMS Power Meter, press “︿” or “﹀” key from the Current display to scroll the display,
which indicates the power value, in order to set the power according to the RMS Power
Meter. After it is done, press “LOCK/LOCAL” to save the data stored and the high range
power calibration is completed.
Increase load to 80A (10KVA=80A)
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