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4165 and 4165-1344 Calibration Procedure
Voltage Zero Adjustment
1) Connect the voltage standard (2701C) at 0 volts to the VOLTAGE HI and LO terminals.
2) Select the 200Ω range and the 2V clamp and NORMAL polarity.
3) Adjust the front panel ZERO potentiometer so that the display indicates 000.00.
Voltage Full-scale Adjustment
1) Set the 2701C to output 100mV for 4100ATC. The ohmmeter uses negative voltages therefore
the VOLTAGE HI terminal should be negative with respect to the VOLTAGE LO terminal.
2) Adjust RV101 for a display indication of 100.00.
3) Remove all connections to the terminals.
Current Zero Adjustment
1) Using the 4-wire test leads, connect the input terminals of the ohmmeter to the 0.1 ohm standard
resistor and select the 200Ω range.
2) Adjust the front panel ZERO potentiometer for a display indication of 000.10 ohms ±1 digit.
.2Ω Range Adjustment
1) Connect the ohmmeter to the 0.1 ohm standard resistor and select the.2Ω range.
2) Adjust R60 for a display indication of .10000 ±2 digits.
2Ω Range Adjustment
1) Connect the ohmmeter to the 1 ohm standard resistor and select the 2Ω range.
2) Adjust R64 for a display indication of 1.0000 ±2 digits.
20Ω Range Adjustment
1) Connect the ohmmeter to the 10 ohm standard resistor and select the 20Ω range.
2) Adjust R66 for a display indication of 10.000 ±2 digits.
200Ω Range Adjustment
1) Connect the ohmmeter to the 100 ohm standard resistor and select the 200Ω range.
2) Adjust R70 for a display indication of 100.00 ±2 digits.
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