Keithley DMM7510 Calibration Manual page 29

Section 2: Performance verification
To verify DC voltage accuracy:
1. Connect the Model DMM7510 HI and LO INPUT connectors to the calibrator as shown in the
following figure.
2. Enable 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 10 V range, set
calibrator amplitude to 7.07 V
3. Verify 1 % accuracy for each range, 100 mV to 1000 V, rising and falling analog edge triggering,
as listed in the verify analog trigger voltage tables. Verify accuracies on the User screen on the
Model DMM7510 front-panel. Use the remote commands in the following for verification.
localnode.prompts = 1
localnode.showerrors = 1
-- *********************************************
-- **** Setup for measure DCV
-- **** Rising edge slope
-- *********************************************
dmm.measure.func = dmm.FUNC_DC_VOLTAGE
dmm.measure.inputimpedance = dmm.IMPEDANCE_AUTO
dmm.measure.autozero.enable = dmm.OFF
dmm.measure.autodelay = dmm.DELAY_OFF
dmm.measure.nplc = 0.0005
dmm.measure.range = 100e-3
dmm.measure.analogtrigger.mode = dmm.MODE_EDGE
dmm.measure.analogtrigger.edge.slope = dmm.SLOPE_RISING
dmm.measure.analogtrigger.highfreqreject = dmm.OFF
display.clear()
display.changescreen(display.SCREEN_USER_SWIPE)
dmm.measure.analogtrigger.edge.level = 50e-3
digio.line[1].mode = digio.MODE_TRIGGER_OUT
trigger.digout[1].pulsewidth = 30E-6
trigger.digout[1].stimulus = trigger.EVENT_ANALOGTRIGGER
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Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
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rms
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DMM7510-905-01 Rev. A / April 2015