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Chapter IX Calibration Procedures and Procedures
Before leaving the factory, the instrument has been calibrated in accordance with the relevant
national standards and regulations. The accuracy of the instrument and the meter fully meets the
specifications of the national standard. It is recommended that the instrument be calibrated at
least once a year. To ensure the accuracy of the meter.
9.1 Enter calibration mode:
Please press and hold the "SET" key on the front panel, and then turn on the power switch of the
machine. The LCD display will show:
The instrument has now entered the calibration mode, please release the button. Press the "SET"
key to select the correction parameter items, which are AC withstand voltage correction, AC
withstand voltage correction for each current level, DC withstand voltage correction (type does
not have this item), and DC withstand voltage correction for each current level (type without this
Item), insulation resistance voltage correction, insulation resistance correction.
9.2 AC withstand voltage correction
Press the "SET" key, the program enters the AC withstand voltage correction mode, and the
display will show:
"H.V." and "terminal under test" on this instrument are connected to a standard high-voltage
voltmeter that can measure 6000VAC. If the standard high-voltage meter specifically states
"high and low-end", please connect the high-end point. To H. of this instrument V. To the
terminal, connect the low end to the "tested end" of the instrument to avoid inaccurate or
damaged high voltage voltmeter. Then press the "Start" key. At this time, the calibration program
of this instrument will automatically output a voltage of about 4000VAC, and the display will
show:
CAL ACW V = 4000V
<TEST> to Calibrate
Calibration
Mode
<SET> to Select
CAL ACW V = XXXXV
<EXIT> to Save
