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Clamp-on DC Meter Overview
by
Swain Meter Company
Field-portable, non-contact ammeters for
corrosion protection,
fault location & quality assurance
Worldwide Quality and Reliability
Swain Meters are field-portable, non-contact
ammeters for corrosion protection, fault location, and quality
assurance. They are accurate, convenient, and trouble-free under normal
field conditions, even for underwater measurements. A Swain Meter is
calibrated and sold as a set with a Swain DC Amp Clip™ or DC Amp Clamp™.
Applications
- Determine current magnitude &
direction.
- Locate shorts & interference.
- Ideal for current measurement for
anodes, gas & oil pipelines, concrete & steel columns.
Swain Meter Product Line Overview
Swain Meter FAQ
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| What are Swain
Meters?
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Swain Meters are precision built and
calibrated portable meters, coupled with clips or clamps, used to
measure current magnitude and direction on conductors in the
atmosphere, underground, or under water. They as suitable for AC or
DC. They are ideal for pipe, pipelines, cables, supports, rebar
and other structures where corrosion may be a problem. |
| What sets Swain Meters apart from
other clamp-type meters? |
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All Swain Meters
utilize Magnetic Error Reduction (MER) technology. This greatly reduces the
effect of the Earth’s magnetic field, which introduces errors into
the measurements of all other clamp-type meters. |
| What is the differences between clips and
clamps? |
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Clips are
single-piece, spring loaded sensors, which can be installed and removed by
compressing a handle. Clips range in size from 3/4” to
6” diameter. Clamps are larger sensors. They are manufactured as matching
half-circles, which are and bolted together around the conductor
to perform
measurements. Clamps range in size from 6” to 60” diameter. Custom sizes can be
produced on demand. |
| What is the
difference between MER and MER2 sensors? |
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MER stands for
Magnetic Error Reduction, which minimizes magnetic interference
problems. MER is the older and less expensive sensor (clip and
clamp) technology. MER2 is a newer, patented sensor technology,
which reduces magnetic interference by a factor of 2 or 3 and
cuts zero errors in half compared to MER. |
| What precision can a Swain Meter
achieve? |
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Swain Meters are capable of a 1
milliampere (mA) resolution on 3/4” to 13” clips and clamps, 1 to 10 mA on
14” to 24” clamps, and 1 to 100 mA resolution on 15” to 60” clamps. |
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Swain Meter
Applications |
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Energy transmission – oil, natural gas, electricity |
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Stray current
identification
Flange
leakage
Induced AC
measurement
Direct burial for long-term monitoring |
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Corrosion control |
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Structure
identification
Foreign contact location
CP system circuit diagnostics |
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Power generation |
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Battery float charge
and load current
Tower leg interference
Guy wire current drain
Grounding system current drain |
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Marine |
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Dock/platform anode
current
Current leakage from propeller
Undersea to depths of 700 ft |
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Automotive |
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Current leakage in
electrical system
Alternator and battery diagnostics |
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Dairy |
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AC
identification in milking process |
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