How to Use Your Swain Meter™

An extensive quality assurance procedure for Cathodic Protection System Testing– Anode output measurements using a Swain Automer meter.

Quality Assurance Procedure

Solving cathodic protection problems. This abbreviated paper discusses: How much lost current can you find? What is the resolution and accuracy?

The structure of the MER™ Meter type clamps; why we expect they will continue to work satisfactorily for a lot longer than 3 years; what accuracy and resolution can be expected.

Solving cathodic protection problems. How much lost current can you find? What is the resolution? Accuracy? Zero.

Mr. Joe Maxwell has written on how to find electrical contacts on gas pipelines [Materials Performance, April 1999, page 33]. My emphasis here is related, but somewhat different. This paper relates to knowing of the contact, when contact occurred, and a lot more.

The structure of the MER™ Meter type clamps; why we expect they will continue to work satisfactorily for a lot longer than 3 years; what accuracy and resolution can be expected.

Clamp-on DC and AC ammeters are used by corrosion engineers and others to accurately measure actual pipe and cable current — on the line — during normal operations. This saves time and trouble.

On a production line an objective is to measure the 20 mA offdraw current accurately and quickly in each of a group of similar vehicles.