Adjustment Procedures
3
Keysight 3458A Calibration Manual
45
3
Set the front panel Terminals switch to Front.
4
Connect the resistance standard to the multimeter's front panel HI and LO
Input and HI and LO Sense terminals as shown in Figure 3-3. If using a Guard
wire (as shown in Figure 3-2), set the Guard switch to the Open position. If not
using a Guard wire, set the Guard switch to the To LO position.
5
Execute the CAL command specifying the exact value of the resistance
standard. For example, if the standard's value is 10.003 k
W
, execute CAL
10.003E3. The multimeter automatically performs the resistance and DC
current adjustment and the display shows each of the various steps being
performed. This adjustment takes about 12 minutes. When the adjustment is
complete, the multimeter returns to displaying resistance readings.
6
Disconnect the resistance standard from the multimeter.
7
Execute the ACAL AC command (use the AUTO CAL key). This autocalibrates
the multimeter's AC section since the following AC Adjustment is normally
performed only once every two years or whenever the 03458-66502 or
03458-66503 PC Assembly has been replaced or repaired. The AC
autocalibration takes about 2 minute to complete.
Figure 3-3
Resistance and DC current adjustment connections
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