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January 2015, MARIETTA, GA – The Badger Meter M-Series® M1000 meter is the result of years of research and field use of electromagnetic flow meter technology. Designed, developed and manufactured under strict quality standards, the
M1000 features sophisticated, processor-based signal conversion with accuracies of ± 0.3 percent. The
M1000 can be chosen for a broad spectrum of applications and the wide selection of liner and electrode materials help ensure maximum compatibility and minimum maintenance over a long operating period.
FEATURES
OPERATION
The operating principle of the electromagnetic flow meter is based on Faraday’s law of magnetic induction: The voltage induced across any conductor, as it moves at right angles through a magnetic field, is proportional to the velocity of that conductor. The voltage induced within the fluid is measured by two diametrically opposed internally mounted electrodes. The induced signal voltage is proportional to the product of the magnetic flux density, the distance between the electrodes and the average flow velocity of the fluid.
ELECTRODES
When looking from the end of the meter into the inside bore, the two measuring electrodes are positioned at three o’clock and nine o’clock. As a conductive fluid flows through the magnetic fluid, a voltage is induced across the electrodes. This voltage is proportional to the average flow velocity of the fluid and is measured by the two electrodes. This induced voltage is then amplified and processed digitally by the converter to produce an accurate analog or digital signal. The signal can then be used to indicate flow rate and totalization or to communicate to remote sensors and controllers.
The M1000 mag meter also has an “empty pipe” detection feature. This is accomplished with a third electrode positioned in the meter between twelve o’clock and one o’clock. If this electrode is not covered by fluid for a minimum of five-seconds, the meter will display an “empty pipe” condition. When the electrode again becomes covered with fluid, the error message will disappear and the meter will continue measuring.
DETECTOR
The flow meter is a stainless steel tube lined with a non-conducive material. Outside the tube, two DC powered electromagnetic coils are positioned opposing each other. Perpendicular to these coils, two electrodes are inserted into the flow tube. Energized coils create a magnetic field across the whole diameter of the pipe. With no moving parts, open flow tube design there
APPLICATION
The M1000 has been specifically designed for industrial water/ wastewater, machinery plants, vehicles and batching process applications. Available in sizes from 1/4" to 8" and nominal pressures up to PN100, the meter is best suited for bidirectional flow measurements of fluid > 5 ìS/cm (> 20 ìS/cm for demineralized water). The amplifier can be integrally mounted to the detector, or if necessary, mounted remotely. The amplifier is housed in a NEMA 6 (IP67) enclosure and the measuring pipes are lined with material approved for drinking water: KTW/DVGW, NSF-61, WRAS, ACS.
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