The Swain MER Meter features manual range selection and manual zeroing. MER stands for Magnetic Error Reduction which allows the meter to quickly measure the magnitude and direction of DC current on any conductor.
Data logging jacks are a standard feature on the MER Meter. Recorder connector with 0±2 V full scale output, plus overrange.
Features:
- Optional external battery operation.
- Measures direct current without interrupting the circuit.
- Magnetic Error Reduction (MER) type DC Amp Clips are generally more accurate
for measuring direct current with a non-contact sensor. They are
constructed to substantially reduce zero offset error due to
non-uniform magnetic fields common on steel pipe, near rebar, or
near the battery in cars and trucks. The benefit is usually two
or three to one over comparable standard Swain Meters.
- Offshore platform
anode current or transmission line current can be measured at 700
ft. depth or more. MER™ Clips (to 6" dia.) and Clamps (to 82" dia.)
work undersea for a long time when waterproof connectors are
provided.
- Typical accuracy
is ±1% reading, ±3 digits, ±He*. User friendly 31/2-digit LCD
meter with polarity and 1/2"-high numerals.
- Protected from
300 A overload.
- AC input current
is rejected to less than 5 mA change with 10 A input.
- Portable, with
auto off, or full on for recorder, 50 hr. typical alkaline
internal battery life. Test Battery range provided.
-
* He is zero
offset sensitivity of the sensor to the earth's magnetic field.
The earth field is uniform unless steel is close and distorts
it. A strong magnet nearby can also cause zero offset.
- 3/4" Clips to 82"
dia. Clamps, which work in a desert, or 500 ft. under water with
optional waterproof connectors and extensions.
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MER Meter®
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