Step 5. Calculate the resistance value as follows: R = Vin/Iin. Vin is the voltage measured by the
second DMM. Convert the input resistance (R) to Siemens by inverting the value: S = 1/R. The value in
Siemens should not exceed value listed in the test record under “Resistance Programming - High
range, Minimum resistance”.
Step 6. Program the N679xA load settings as described in the test record form under “Resistance
Programming - High range, High resistance”. Program the power supply to the power supply settings
described in the test record form.
Step 7. Divide the voltage drop (DMM reading) across the current shunt by the shunt resistance to
convert to amps and record this value (Iin).
Step 8. Calculate the resistance value as follows: R = Vin/Iin. Vin is the voltage measured by the
second DMM. Convert the input resistance (R) to Siemens by inverting the value: S = 1/R. The value in
Siemens should not exceed value listed in the test record under “Resistance Programming - High
range, High resistance”.
Medium Range
Step 9. Program the N679xA load settings as described in the test record form for “Resistance
Programming - Medium range, Minimum resistance”. Program the power supply to the power supply
settings described in the test record form.
Step 10. Divide the voltage drop (DMM reading) across the current shunt by the shunt resistance to
convert to amps and record this value (Iin).
Step 11. Calculate the resistance value as follows: R = Vin/Iin. Vin is the voltage measured by the
second DMM. Convert the input resistance (R) to Siemens by inverting the value: S = 1/R. The value in
Siemens should not exceed value listed in the test record under “Resistance Programming - Medium
range, Minimum resistance”.
Step 12. Program the N679xA load settings as described in the test record form under “Resistance
Programming - Medium range, High resistance”. Program the power supply to the power supply
settings described in the test record form.
Step 13. Divide the voltage drop (DMM reading) across the current shunt by the shunt resistance to
convert to amps and record this value (Iin).
Step 14. Calculate the resistance value as follows: R = Vin/Iin. Vin is the voltage measured by the
second DMM. Convert the input resistance (R) to Siemens by inverting the value: S = 1/R. The value in
Siemens should not exceed value listed in the test record under “Resistance Programming - Medium
range, High resistance”.
Low Range
Step 15. Program the N679xA load settings as described in the test record form for “Resistance
Programming - Low range, Minimum resistance”. Program the power supply to the power supply
settings described in the test record form.
Step 16.Divide the voltage drop (DMM reading) across the current shunt by the shunt resistance to
convert to amps and record this value (Iin).
Keysight N6700C Operating and Service Guide 345
6 Verification and Calibration
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