Keithley DMM7510 Calibration Manual

Section
2: Performance verification Model DMM7510 7½ Digit Graphical Sampling Multimeter
Calibration Manual
2-22 DMM7510-905-01 Rev. A / April 2015
localnode.prompts = 1
localnode.showerrors = 1
-- *********************************************
-- **** Setup for Digitize DCV ****
-- *********************************************
-- *********************************************
-- **** Digitize DCV DC Coupling ****
-- **** Rising Edge slope ****
-- *********************************************
dmm.digitize.func = dmm.FUNC_DIGITIZE_VOLTAGE
dmm.digitize.aperture = 1e-6
dmm.digitize.samplerate = 1e6
dmm.digitize.coupling.type = dmm.COUPLING_DC
dmm.digitize.inputimpedance = dmm.IMPEDANCE_AUTO
dmm.digitize.range = 100e-3
dmm.digitize.analogtrigger.mode = dmm.MODE_EDGE
dmm.digitize.analogtrigger.edge.slope = dmm.SLOPE_RISING
dmm.digitize.analogtrigger.highfreqreject = dmm.OFF
display.clear()
display.changescreen(display.SCREEN_USER_SWIPE)
dmm.digitize.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
-- *********************************************
-- **** Falling Edge slope ****
-- *********************************************
dmm.digitize.analogtrigger.edge.slope = dmm.SLOPE_FALLING
dmm.digitize.analogtrigger.edge.level = -50e-3
Set up to verify the analog trigger digitize DC voltage, AC coupling
Use the connections described in Set up to verify the analog trigger digitize DC voltage, DC coupling
(on page 2-21).
To verify analog trigger digitize voltage with AC coupling accuracy:
1. Enable the calibrator output to 100 Hz sine wave with a peak level of 100 % of the Model
DMM7510 digitize range. For example, if the Model DMM7510 is set to the 10 V range, set
calibrator amplitude to 7.07 V
rms
.
2. Verify AC-coupled 1.5 % accuracy for each range, 100 mV to 1000 V, rising and falling analog
edge triggering, as listed in the following "Verify the 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.

Keithley DMM7510 Specifications

General

Resolution	7.5 digits
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	10 µA to 10 A
Resistance Range	10 Ω to 1 GΩ
Sampling Rate	1 MS/s
Memory	27.5 million readings
Display	5 inch capacitive touchscreen
AC Voltage Accuracy	±0.06% of reading
AC Current Range	10 A
Connectivity	USB, LAN, GPIB