M-Series® M1000
Electromagnetic Flow Meter
DESCRIPTION
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.
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.
M1000 mag meter also have 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.
APPLICATION
The M1000 has been specifically designed for industrial water/
wastewater, machinery plants, vehicles and batching process
applications. Available in sizes from 1/4…8 in. and nominal
pressures up to PN100, the meter is best suited for bidirectional
flow measurements of fluid > 5 µS/cm (> 20 µS/cm for
demineralized water). The amplifier can be integrally mounted
to the detector, or if necessary, mounted remotely. The amplifier
is housed in a Type NEMA 4X (IP67) enclosure and the measuring
pipes are lined with material approved for drinking water:
KTW/DVGW, NSF-61, WRAS, ACS.
FEATURES
• Accuracy ± 0.3%
• Flow range 0.03…12 m/s
• Sizes 1/4 … 8 in. (6…200 DN)
• LCD display
• Power supply 92…275V AC, 9…36V DC
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 is no pressure lost
and practically no maintenance required
MAG-DS-00251-EN-05 (January 2018)
APPROVALS
• UL Std. No. 61010-1 (2nd Edition)
Safety Requirements for Electrical Equipment for
Measurement, Control, and Laboratory Use, Part 1: General
Requirements
Product Data Sheet
M-Series® M1000, Electromagnetic Flow Meter
6.46 in.
DIMENSIONS
6.46 in.
(164 mm)
5.83 in.
(148 mm)
B
3.90 in.
(99.1mm)
1.20 in.
(30.5 mm)
2.77 in.
(70.5 mm)
ØC
A
Meter mounted
3.90 in.
(99.1 mm)
1.2 in.
(30.5 mm)
4.72 in.
(120 mm)
4.80 in.
(122 mm)
0.90 in.
(22.9 mm)
(148 mm)
(164 mm)
5.83 in.
D
2.36 in.
(60 mm)
2.56 in.
(65 mm)
A
Remote mounted with mounting bracket
Page 2 January 2018MAG-DS-00251-EN-05
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