Probe Resistivity (CRP) method
The SRM330can take specific measurements: Resistance between
Two Points (RTT) and Surface to Ground Resistance (RTG). Proce-
dures vary regarding sample preparation, probe preparation and
spacing of the external probes. Select and read the correct test pro-
cedure for the desired measurement.
“Press & Test Travel Electrodes
The Press & Test Travel Electrodes can be substituted for the com-
mon 5lb external probes. To use the Press & Test probes, position
the probes in the intended test surface and press down on the
spring loaded probes. Have a 2nd person press the test button and
hold both the probes and the button until a the measurements are
displayed. The SRM330 can be used with 5lb probes as well.
Note: Ensure the material being tested is electrically isolated (placed
on an isulative surface) as the meter will measure the lowest resis-
tance path.
RTT test procedure
This procedure measures resistance between two points independ-
ent of a ground point.
1. Connect the plug ends of the test leads into the banana jacks of
the meter.
2. Connect the banana plugs of the test coil cords into the ends of
the external probes.
3.
Switch the toggle switch to “External”.
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