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Leading the Charge for Cathodic Protection and Corrosion Control Solutions
Leading the Charge for Cathodic Protection and Corrosion Control Solutions
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LEADING THE CHARGE
Farwest Corrosion Control Company Continues to be THE LEADER
for Complete Cathodic Protection & Corrosion Control Solutions
TURNKEY INSTALLATION SERVICES
Known for our expert workmanship and collaborative approach,
we are experienced in all facets of infrastructure projects.
We own and operate our own equipment. We are focused on safety and efficiency.
CP System Installation • CP System Repair
AC Mitigation Installation • System Abandonment
Our Most Recent Installation Projects
TECHNICAL CORNER
USING A FOUR POINT RESISTANCE METER
Measuring Soil Resistivity
A Four Point (Pin) Soil Resistance Meter (FPSRM) is used to measure the resistivity of the soil in the field or in a soil box. Common models include the Tinker & Rasor SR-2 (shown here) and the M.C. Miller 400A.
The Meter -The meters are basically an ohmmeter, albeit a special one. As the name implies, the meter has four points (pins) to obtain the needed resistance values.
Operation - Powered by internal batteries, a current is circulated between the C1 & C2 current terminals while measuring the voltage/potential drop between the P1 & P2 potential terminals.
