CALIBRATION
3. Calibration of Insulation Resistance Current model 2945
Equipment needed: STANDARD DC MILLIAMMETER with a range of 2000uA and a
fixed Resistor 500K Ohm, 50 watts.
Please connect a 500K resistor in series with the standard DC microammeter and
connect these across the output leads of the instrument. Press the EXIT key. The
instrument will provide around 500VDC on the output and the display will show:
Please use the Up/Down Arrow keys to enter the reading of the standard DC
microammeter into the instrument. Then press the SET key to store the current setting.
Press the EXIT or RESET key to return to the calibration menu without changing the
calibration setting.
The instrument will output two short “beeps” when attempting to save a missing or bad
parameter and will not allow return to the calibration menu.
4. Save Calibration
After the calibration, the instrument has to be turned off to save the calibration
parameters. The power must be turned off and on again to switch from the calibration
mode to the run mode.
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