Keithley DMM7510 Calibration Manual page 36

Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
Verify the analog trigger DC current and digitize current 10 µA to 1 A ranges
To verify analog trigger current accuracy:
1. Connect the Model DMM7510 to the calibrator as shown in the following figure.
2. Digitize current function only: On the Model DMM7510, press the FUNCTION key, select the
Digitize Functions tab, and select Digitize Current.
3. Measure function only: Set the Level to 50 % of the selected range. For example, if the measure
range is 100 mA, set the analog level to 50 mA using the remote command
dmm.measure.analogtrigger.edge.level = 50 e-3.
4. Measure function only: Set the frequency to 100 Hz.
5. Verify DC current to 1 % accuracy for rising and falling analog edge triggering.
Verify the analog trigger DC current 1 mA to 3 A ranges
To verify analog trigger current accuracy:
1. Connect the Model DMM7510 to the calibrator as shown in the following figure.
2. Verify DC current and Digitize Current for rising and falling analog-edge triggering as follows:

1 mA to 1 A to 1 % of range accuracy

3 A to 3 % of range
3. Follow the example commands provided in
performance
1 mA to 3 A verification connections
Verify the analog trigger current 1 mA to 3 A ranges
To verify the analog trigger current 1 mA to 3 A ranges:
1. Set the calibrator output to 100 Hz sine wave with a peak level of 100 % of the Model DMM7510
measure range. For example, if the Model DMM7510 is set to the 1 mA range, set the calibrator
amplitude to 707 µA
2. Source AC currents as listed in the following tables.
DMM7510-905-01 Rev. A / April 2015
(on page 2-30) for each range. Set the level to 50 % of the selected range.
. For the 3 A range, set calibrator amplitude to 2 A
rms
Section 2: Performance verification
Example code for verifying analog trigger current
.
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