About Swain Meter

One-of-a-kind Clamp-on Ammeters

Ammeter

The Swain Meter™ Company manufactures portable clamp on ammeters that precisely measure the magnitude and direction of DC current flow on any conductor. Used both onshore and offshore, Swain instruments accurately read current from 5mA to 200 Amps with a resolution of 1mA in the 0-2Amp range.

Swain Meter field portable, custom built, clamp-on DC Ammeters:

Sizes range from 3/4” through 100”diameter
Clips and Clamps are non-contact devices
Measure DC current from 5mA to 200Amps
One mA Resolution in 2A range
Cancels AC interference for accurate reads
Shows direction and Magnitude of current

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Products

Meters

Swain MER® and AutoMER™ meters cancel out AC interference up to 10Amps to establish a +/- 1% reliability specification. MER is "Magnetic Error Reduction", a patented technology (US patent 6,323,635 1) is constructed to cancel out the earth's magnetic field and establish an error-free baseline from which precise readings are obtained. More...

Sensors

MER2™ Sensors are used to measure actual pipe current, both magnitude and direction of flow, more accurately and in less time, above ground, under water and permanently buried. These Clips and Clamps are available from 3/4" to over 100" diameter aperture. More...

How to Use Our Products

Clamp-on direct current ammeters are tools for solving cathodic protection problems. They can measure interference in a gas pipe or support column, measure anode current on a subsea structure, or find lost CP current due to bad pipeline insulation, defective anode leads, or poor structural electrical contact. More...

Our Products

Technical Papers