Keithley DMM7510 Calibration Manual

Section
3: Calibration Model DMM7510 7½ Digit Graphical Sampling Multimeter
Calibration Manual
3-20 DMM7510-905-01 Rev. A / April 2015
Save calibration and set the adjustment dates
Calibration is temporary unless you send the cal.save() command. Also, calibration data is not
saved if calibration is locked, if invalid data exists, or if all steps were not completed.
Use the following commands to save and lock calibration adjustments.
cal.save()
cal.lock()
reset()
Calibrations are complete after they have been saved and locked.
Example TSP calibration code
The following code examples include code for the calibration steps and code that displays prompts on
the Model DMM7510 front panel.
You may need to adjust the calibration commands in this code for your equipment setup.
Rear terminal adjustments
--Rear DC adjustment step 0: amplifier offset
display.clear()
display.changescreen(display.SCREEN_USER_SWIPE)
eventlog.clear() -- Clear the error event log and Home screen error triangle.
display.settext(display.TEXT1, "Calibrate Enabled")
display.settext(display.TEXT2, "Rear, Step #0, Mux Amp offset")
cal.adjust.rear.dc(0) -- Supports either 4-Wire short or open terminals.
code,message,severity = eventlog.next() -- Set variables to print the error
messages.
display.changescreen(display.SCREEN_HOME)
delay(2.0)
display.clear()
display.changescreen(display.SCREEN_USER_SWIPE)
display.settext(display.TEXT1, "Calibrate Enabled")
display.settext(display.TEXT2, "Rear, Step #0, Done")
delay(4.0)
display.clear()
display.changescreen(display.SCREEN_USER_SWIPE)
display.settext(display.TEXT1, "Calibrate Enabled")
display.settext(display.TEXT2, "Start Next Cal Step")
print('Error Code =', code)
print('Error Message =', message)
print('Error Severity =', severity)
print('done')

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