This coupon is a metal specimen with a known surface area and material composition. It is electrically connected to the protected structure, such as a pipeline, via a test station. By simulating a coating defect (exposed iron) on the pipeline, it allows technicians to measure the instant-off potential without disrupting the operation of the main structure. This eliminates IR drop errors in the soil and yields accurate true protection potential data.
KEY FEATURES
SPECIFICATIONS
|
Parameter |
Typical Options |
Remarks |
|
Coupon Material |
Q235/Q345/X52/X60/X65/X70 |
Can be customized |
|
Exposed Area |
1cm²(AC stray current) 6.5cm²/10cm²（general DC） 100mmx50mm（weight loss) |
Area accuracy directly affects current density calculation |
|
Shape |
Circular/square |
Concentric design minimizes measurement distance,eliminates IR drop |
|
Common Plate Size |
30×50mm,40×60mm,50×80mm,60×100mm |
Rectangular plate |
|
Thickness |
2mm/3mm/4mm/5mm |
Ensures mechanical strength and durability |
|
Overall Encapsulated Component |
Cable:Copper core,PVC,1.5-4mm Enclosure:PVC Enclosure:PVC |
Integrated structure with housing and lead wire |
APPLICATIONS
