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2KΩ Range Adjustment
1) Connect the ohmmeter to the 1Kohm standard resistor and select the 2KΩ range.
2) Adjust R74 for a display indication of 1.0000 ±2 digits.
20KΩ Range Adjustment
1) Connect the ohmmeter to the 10Kohm standard resistor and select the 20KΩ range.
2) Adjust R76 for a display indication of 10.000 ±2 digits.
Voltage Clamp Adjustments
1) Set the clamp to the highest voltage setting (2V).
2) Connect the ohmmeter to the 10Kohm standard resistor and select the 2KΩ range (the display
will flash indicating an overrange condition).
3) Attach the voltmeter between the CURRENT HI and LO terminals.
4) Select the 20mV (4165-1344) or 50mV (4165) open-circuit clamp.
5) Adjust the "50mV" potentiometer on the clamp PCB for a voltmeter reading of 20mV (4165-
1344) or 50mV (4165) ±1mV.
6) Select the 2V open circuit clamp, and the 20Ω range.
7) Adjust the "2V" potentiometer on the clamp PCB for a voltmeter reading of 2V ±10mV.
End calibration for 4165 and 4165-1344.
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