PMX_MULTI
User’s Manual
77
Maintenance
The product is calibrated before shipment. We recommend periodic calibration to maintain the perfor-
mance over an extended period.
For calibration, we recommend that you ask your Kikusui agent or distributor.
If you want to calibrate the product yourself, follow the procedure below.
Calibration overview
There are 14 calibration parameters.
Calibration is performed for 1 % and 100 % of full scale.
Test Equipment Required
• A DC voltmeter (DVM) with a measurement accuracy of 0.01 % or better
• A shunt resistor with an accuracy of 0.1 % or better, or an ammeter that can supply the rated output
current of the product to be calibrated
Environment
Perform calibration under the following environment.
• Temperature: 23 °C ± 5 °C
• Humidity:
80 %rh or less
To minimize the calibration error due to initial drift, warm up the product (with the current running) for at
least 30 minutes before calibration. In addition, warm up the DVM and shunt resistor for as long as is nec-
essary.
Voltage
Current
Output voltage offset (1 % of the rated voltage)
Output current offset (1 % of the rated current)
Output voltage full scale (100 % of the rated voltage)
Output current full scale (100 % of the rated current)
Voltmeter offset (1 % of the rated voltage)
Ammeter offset (1 % of the rated current)
Voltmeter full scale (100 % of the rated voltage)
Ammeter full scale (100 % of the rated current)
Overvoltage protection (OVP)
Overcurrent protection (OCP)
Output voltage offset in series operation (1 % of the
rated voltage)
Output current offset in parallel operation (1 % of the
rated current)
Output voltage full scale in series operation (100 % of
the rated voltage)
Output current full scale in parallel operation (100 %
of the rated current)
