Calibration
Manual Calibration Commands
5
5-13
Table 5-5. Manual V AC Calibration
Command
Response
Action
CAL 2
=>
Puts 268XA in V ac calibration.
CAL_REF?
30.0000E-3
Use the 5700A to source 30 mV ac @ 1 kHz
CAL_STEP?
30.0000E-3
268XA computes the calibration constant and returns the
calibrated reading. Allow several seconds.
CAL_REF?
300.000E-3
Use the 5700A to source 300 mV ac @ 1 kHz
CAL_STEP?
300.000E-3
268XA computes the calibration constant and returns the
calibrated reading. Allow several seconds.
CAL_REF?
300.000E-3
Use the 5700A to source 300 mV ac @ 1 kHz
CAL_STEP?
300.000E-3
268XA again computes the calibration constant and returns
the calibrated reading. Allow several seconds.
CAL_REF?
3.0
Use the 5700A to source 3 V ac @ 1 kHz
CAL_STEP?
3.0
268XA computes the calibration constant and returns the
calibrated reading. Allow several seconds.
CAL_REF?
3.0000E+0
Use the 5700A to source 3 V ac @ 1 kHz
CAL_STEP?
3.0000E+0
268XA again computes the calibration constant and returns
the calibrated reading. Allow several seconds.
CAL_REF?
30.0000E+0
Use the 5700A to source 30 V ac @ 1 kHz
CAL_STEP?
30.0000E+0
268XA computes the calibration constant and returns the
calibrated reading. Allow several seconds.
[PAI only for remainder of steps]
CAL_REF?
30.0000E+0
Use the 5700A to source 30 V ac @ 1 kHz
CAL_STEP?
30.0000E+0
268XA computes the calibration constant and returns the
calibrated reading. Allow several seconds.
CAL_REF?
300.0000E+0
Use the 5700A to source 300 V ac @ 1 kHz
CAL_STEP?
300.0000E+0
268XA computes the calibration constant and returns the
calibrated reading. Allow several seconds.
Resistance Calibration Procedure
The resistance calibration procedure calculates gain and offset calibration constants for
all of the four-wire ohms ranges. The same calibration constants are used for the
corresponding two-wire ohms ranges.
Complete the following procedure to manually calibrate the ohms function.
1.
If you have not already done so, complete the procedure “Preparing for Calibration”
earlier in this chapter.
2.
Connect the device and 5700A Calibrator as shown in Figure 5-4.
3.
Complete the sequence of manual steps shown in Table 5-6. The default values were
chosen assuming that a Fluke 5700A will be used to supply the reference resistors.
For each range, channels 1 and 2 are configured to four-wire ohms and a
measurement is made for each channel. Making a four-wire ohms measurement on
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