Parallel Probe Resistivity Method
The PRP method is used to give fast electrical resistivity
measurements on flat homogeneous materials. Parallel
probes are mounted on the back of the SRM500.
Note: It may be used on multilayered materials, but this
should be noted along with the temperature and humidity
value on the data report.
Make sure that surfaces to be tested are clean and free of
contaminants.
1. Place the meter on the surface to be tested.
2. Move the switch to desired test voltage position, either
10 or 100 volts.
3. Press and hold the test button. After approximately 15
seconds, the meter will display the resistivity, humidity
and temperature on the LCD screen.
The resistivity reading will be in ohms per square, tem-
perature in centigrade, and relative humidity in percent.
The meter will keep updating the display while the button
is held down and will continue to display the last test read-
ing for approximately 45 seconds after the button is re-
leased.
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