Designed, developed and manufactured under strict quality
standards, the M-Series M5000 electromagnetic meter features
sophisticated, processor-based signal conversion with accuracies
of ± 0.50%. Based on Faraday’s Law of Induction, these meters can
measure potable water, reclaimed water, ground water and clear,
water-based applications that have minimal electrical conductivity.
The flow meter is a stainless steel tube lined with a non-conductive
material. Outside the tube are two DC-powered electromagnetic
coils positioned opposite each other. Perpendicular to the coils
are two electrodes inserted into the flow tube. The energized coils
create a magnetic field across the diameter of the pipe.
As a conductive fluid flows through the magnetic field, 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 digitally
processed 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.
In addition, the processor controls zero-flow stability, frequency
outputs, serial communications, and other parameters.
With no moving parts in the flow stream, there is no pressure
loss. Also, accuracy is not affected by temperature, pressure,
viscosity or density and there is practically no
maintenance required.
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. M5000 mag meters 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
five-second duration, the meter will display an “empty pipe
detection” condition, send out an error message, if desired, and
stop measuring to maintain accuracy. When the electrode again
becomes covered with fluid, the error message will disappear and
the meter will continue measuring.
The wide selection of liner and electrode materials helps ensure
maximum compatibility and minimum maintenance over a long
operating period. The M5000 amplifier can be integrally mounted
to the detector, or if necessary, mounted remotely. The amplifier is
housed in a NEMA 4X (IP66) enclosure.
OPERATION
In addition to using grounding rings, a grounding electrode
(fourth electrode) can be built into the meter during
manufacturing to assure proper grounding. The position of this
electrode is at five o’clock.
APPLICATION
The M5000 mag meter is designed for applications without power
line access, where flow is continuous, and when indication of rate
and totalization are required. The M5000 can accurately measure
fluid flow—whether the fluid is water or a highly corrosive liquid,
very viscous, contains a moderate amount of solids, or requires
special handling. Today, electronic meters are successfully used
in industries including potable water, reclaimed water, food and
beverage, pharmaceutical and chemical.
FEATURES
• Available in sizes 0.50…24 in. (15…600 mm)
• Battery powered
• ± 0.50% accuracy independent of fluid viscosity, density
and temperature
• Unaffected by most solids contained in fluids
• Pulsed DC magnetic field for zero point stability
• No pressure loss for low operational costs
• Corrosion resistant liners for long life
• Calibrated in state-of-the art facilities
• Integral and remote signal converter availability
• Optional grounding rings or grounding electrode
• Measurement largely independent of flow profile
• Low-power digital microcontroller (16 bit)
• Simple programming procedure
• Digital and infrared outputs
• Automatic zero-point stability
• Non-volatile programming
• NSF listed
• Data logging
MAG-DS-00175-EN-06
(September 2017)
Product Data Sheet
M-Series® M5000, Electromagnetic Flow Meter
SPECIFICATIONS
Flow Range0.1…32.8 ft/s (0.03…10 m/s)
Accuracy± 0.50 % rate for velocities greater than 1.64 ft/s (0.50 m/s),
Minimum Fluid Conductivity≥ 20 micro siemens/cm
Pressure LimitsMaximum allowable non-shock pressure and temperature ratings for steel pipe flanges, according to American
Fluid TemperatureWith Remote Amplifier:
Ambient Temperature– 4…140° F (–20…60° C)
Flow DirectionUni-directional or bi-directional. Two separate programmable totalizers for uni-directional measurement.
Outputs (4 digital)Galvanically isolated open collector, 30V DC maximum, 20 mA each, maximum output frequency at 100 Hz
OutputsADE, High/low flow alarm (0…100% of flow), error alarm, empty pipe alarm, flow direction
CommunicationRS232 Modbus RTU, IrDA
Empty Pipe DetectionField-tunable for optimum performance based on specific application
Min-Max Flow AlarmProgrammable outputs 0…100% of flow
Low Flow Cut-OffProgrammable 0…10% of maximum flow
Galvanic SeparationFunctional 50 volts
Pulse WidthProgrammable 5…500 ms
Coil PowerPulsed DC
Repeatability± 0.1%
Sampling RateProgrammable from 1 to 63 seconds. Standard sampling period is 15 seconds.
DisplayTwo lines x 15 characters (7 on top + 8 on bottom), LCD display
ProgrammingThree external buttons
Units of MeasureGallons, ounces, MGD, liters, cubic meters, cubic feet, imperial gallon, barrel, hectoliter and acre feet