EEC 6500 Series - CHAPTER 7: CALIBRATION PROCEDURE; 7.1 Calibration Procedure

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CHAPTER 7: CALIBRATION PROCEDURE
The calibration procedure is with model 6510 and output voltage 0-300V for its example.
7.1 Calibration Procedure
1. All the AC Power Sources are calibrated at the factory before delivery. Unless necessarily,
kindly do not re-calibrate within the first 12 months.
2. Ensure the model version is correct before turn OFF the AC Power Source. Press and hold
“LOCK/LOCAL” key while turn ON the AC Power Source. After two seconds, the AC Power
Source will indicate model number and version. It is now at calibration mode and press
“︿” or “﹀” key under the Frequency display to select a calibration menu.
3. Low Range Voltage (V-LO) Calibration: Press “︿” or “﹀” key from the Frequency display
to select “V-LO". Connect a calibrated true RMS Voltmeter on one of the output socket
and press TEST key in order to activate the CPU to read a low range offset voltage and
send a 150VAC output voltage. The accurate RMS Voltmeter will indicate an actual voltage
value while the Current display on the AC Power Source will indicate a necessary value
needed to be calibrated. Using the voltage value from the RMS Voltmeter, press “︿ “or
“﹀“ key from the Current display to scroll the display which indicate the current voltage
value, in order to set the voltage according to the RMS Voltmeter. After it is done, press
“LOCK/LOCAL” key to save the data stored and the low range voltage calibration is
completed.
4. High Range Voltage (V-HI) Calibration: Press “︿” or “﹀” key from the Frequency display
to select “V-HI". Connect a calibrated true RMS Voltmeter on one of the output socket and
press TEST key in order to activate the CPU to read a high range offset voltage and send a
300VAC output voltage. The accurate RMS Voltmeter will indicate an actual voltage value
while the Current display on the AC Power Source will indicate a necessary value needed
to be calibrated. Using the voltage value from the RMS Voltmeter, press “︿” or “﹀” key
from the Current display to scroll the display, which indicates the current voltage value, in