Selecting the Right Meter for Accurate AC and DC Measurements in Challenging Environments
When working in cathodic protection systems, choosing the correct meter is crucial for accurate AC and DC readings. While cheaper meters are commonly used, they lack high input resistance and AC rejection capabilities, which can lead to inaccurate readings in challenging environments. High-quality meters with input resistance selectors and higher AC rejection ensure more precise measurements, especially when measuring high resistivity environments like desert sands. Avoid using ohm meters across circuits with potential, as this can damage the meter, particularly in systems where AC is present.
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