5: Leakage current and insulation resistance Model 2470 High Voltage SourceMeter Instrument
5-14 2470-900-01 Rev. A / May 2019
Send the following commands for this example application:
--Reset the instrument
reset()
--Set up the source function.
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 1e-3
smu.source.level = 700
--Set up the measure function
smu.measure.func = smu.FUNC_DC_CURRENT
smu.measure.unit = smu.UNIT_OHM
smu.terminals = smu.TERMINALS_REAR
smu.measure.autorange = smu.ON
smu.measure.nplc = 1
-- Turn on the source output and make readings.
trigger.model.load("SimpleLoop", 10, 0.1)
smu.source.output = smu.ON
trigger.model.initiate()
-- Wait for the measurements to complete.
waitcomplete()
-- Parse index and the data into three columns.
print("Rdg #,", "Time (s),", "Resistance (Ohm)")
for i = 1, defbuffer1.n do
print(i, defbuffer1.relativetimestamps[i], defbuffer1[i])
end
--Turn off the output.
smu.source.output = smu.OFF
The graph in the following figure demonstrates what the plotted results might look like.
Figure 27: Insulation resistance test results
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