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Chapter 3 — Measuring with the DRM-100
Page 21
Testing Procedures
Conventional Mode
Although the DRM-100 is capable of measuring
resistance with several hundred volts of common mode
noise on the current outputs and voltage inputs of the
instrument, it is recommended that one side of the
equipment under test (EUT) be grounded prior to
connecting the DRM-100.
It is also recommended that the instrument be grounded.
Make sure the input switch is OFF.
Connect the current leads to the current output sockets on
the DRM-100 and connect the large alligator clamps to
the terminals of the EUT.
Connect the potential leads to the voltage input sockets on
the DRM-100 and connect the small alligator clamps to
the same terminals of the EUT.
Make sure the potential clips and the current clamps do
not physically touch each other.
The potential lead clamps should be between the current
clamps and the EUT.
Turn the input switch ON.
Use the I/t button to select the current set field, “I=SET”.
Use the up/down arrows to adjust the desired current. The
default value is 100 amps.
Use the I/t button to select the time setting field, “t=SET”.
Use the up/down arrows to adjust the desired test time.
Typically 10 seconds is sufficient.