The following technical papers describe our instruments and how to use them:
- Procedure for Testing on Offshore Structures
An extensive quality assurance procedure for Cathodic Protection System Testing-- Anode output measurements using a Swain Automer meter.
Posted 22 June 2011
- How to Get Better
Accuracy with a Clamp-on Direct Current Ammeter
Solving cathodic protection problems. This abbreviated paper discusses: How much lost current can you find? What is the resolution and accuracy?
Posted 13 October 2000
Durability, and Accuracy of a Permanently Mounted and Buried
Clamp-on Direct Current Ammeter
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.
Posted 23 September 2000
- Use and Accuracy
of a Clamp-on Direct Current Ammeter
Solving cathodic protection problems. How much lost current can you find? What is the resolution? Accuracy? Zero offset?
Posted 23 June 2000
- Line Current
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.
Posted 13 October 1999
- How to Save Time
Locating and Measuring Interference Current from a Foreign Line
A pipeline or cable may carry an unwanted and sometimes unexpected current because of interference from a foreign line, subway, or other conductor in the vicinity. Corrosion is likely where current leaves a line and enters ground soil so we want to locate and measure the current and find its source.
- Pipeline Protection with
Clamp-On DC & AC Ammeters
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.
- Clip and Read
Measurement of Offdraw Current in a Vehicular Battery
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.
- Setup for Testing the Gain and Polarity of the Clamp at the Wellhead