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M-Series® 7500S
Sanitary Meter
DESCRIPTION
The M-Series 7500S Mag Meter, is a successful combination of the
most advanced electromagnetic flow metering technology with the
simplicity and ruggedness of proven batching systems for industrial
applications requiring sanitary equipment.
Based on Faraday's Law of electromagnetic induction, the
7500S can accurately measure and control almost any batching
requirement. The completely open cross-section flow tube design
with no moving parts makes this meter the ideal device for
batching of a wide range of industrial fluids.
Where other metering technologies fail due to the presence of
solids in suspension in the process fluid, the 7500S is designed to
perform for many years of trouble-free operation with an accuracy
of ±0.5% or better.
The built-in Pulse Scaler features easy-to-use rotary switches for
batch accuracy compensation, making the 7500S the most
straightforward metering system available in the industry.
OPERATION
The 7500S Mag meter is a stainless steel flow tube with an internal
isolating lining. Two electromagnetic coils are located outside the
flow tube, diametrically opposed to each other and protected by a
stainless steel housing. Two electrodes, inserted into the flow tube,
are positioned "flush" with the internal diameter of the tube and
perpendicular to the coils. The coils are energized by a pulsed DC
voltage provided by the electronic converter, and a magnetic field is
generated across the flow tube section. According to Faraday's law,
when conductive liquid flows through this magnetic field of the
meter, a voltage is generated in the liquid. This voltage is directly
proportional to the liquid flow velocity, and therefore to the actual
volumetric flow rate of the liquid. The electronic converter measures
this voltage, processes the signal, and provides two digital pulse
outputs, scalable to the desired volumetric value. These digital
pulse outputs can be connected to a batch controller, a totalizer
display unit for monitoring purposes, or to both
devices simultaneously.
APPLICATION
Because of its inherent advantages over other more conventional
technologies, this meter can be used in the majority of industrial
sanitary flow applications. Whether the fluid is water or something
very viscous, contains a moderate amount of solids or requires
special handling, this meter will be able to accurately measure
it. Today M-Series meters are successfully being used in many
industries including food, beverage and pharmaceutical, handling
fluids such as milk, beer, pastes, syrups, and many other hard to
measure fluids.
FEATURES
• Unaffected by most suspended solids in the liquid.
• Open cross-section design: no pressure loss, no moving parts.
• Pulsed DC magnetic field for maximum zero point stability.
• Rugged surface mount technology electronics for reliable, long
life operation.
• NEMA 4X standard enclosure.
• Two standard pulse outputs: solid state relay and open
collector output, compatible with most of existing Batch
Controllers and/or Totalizer Displays.
• Standard ±0.5% of rate accuracy.
• ±0.2% repeatability.
• Built-in rotary switches for easy batch accuracy compensation.
• Long life corrosion resistant liner (PTFE)
MAG-DS-00376-EN-03 (October 2014)
Product Data Sheet
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M-Series® 7500S, Sanitary Meter
SPECIFICATIONS
Sizes 1/2…4 in. (15…100 mm)
Electrode Material Alloy C
Liner Material PTFE
Max Fluid Temperature 212° F (100° C)
Pressure Limits 150 psi (10 Bar)
Housing Material 316 stainless steal
End Connections Tri-clamp
Power Supply 110V AC ± 10%, 5V A (220V AC optional)
Coil Excitation Pulsed DC 7.5 Hz
Minimum Liquid Conductivity 5 micromhos/cm
Maximum Output Frequency 10 kHz
System Accuracy ± 0.5% of rate
Repeatability ± 0.2%
Enclosure Stainless steel, NEMA 4X
Mounting Meter mounted only
Environmental –4…122° F (–20…50° C)
Output 1 Solid state relay up to 230V, 500 mA
Output 2 Opto-isolated open collector, 50 mA at 24V DC
Flow Direction Unidirectional
Pulse Width 50% duty cycle
Cable Connections Two 1/2 in. NPT cord grip
DIMENSIONS
145mm
5.70"
230mm
9.00"
1"
67mm
2.65"
145mm
5.70"
D
C
Flow Range
gpm lpm
Size
in. (mm)
A
in. (mm)
B
in. (mm)
A
C
in. (mm)
B
D
in. (mm)
Est. Weight
lbs (kg)
min max min max
1/2 (15) 5.6 (143) 1 (25.4) 2.8 (70) 11.8 (300) 7 (3.2) 1 20 3.8 76
1 (25) 5.6 (143) 2 (50.8) 2.8 (70) 11.8 (300) 8 (3.6) 3 80 11.4 303
2 (50) 5.9 (149) 2.5 (63.5) 4.1 (104) 13.4 (340) 10 (4.5) 10 320 37.9 1211
3 (80) 8.5 (216) 3.6 (91.4) 5.5 (140) 14.6 (370) 12 (5.4) 22 690 83.3 2612
4 (100) 8.5 (216) 4.7 (119.4) 6.3 (160) 15.4 (391) 15 (6.8) 40 1300 151.4 4921
Control. Manage. Optimize.
M-SERIES is a registered trademark of Badger Meter, Inc. Other trademarks appearing in this document are the property of their respective entities. Due to continuous research,
product improvements and enhancements, Badger Meter reserves the right to change product or system specications without notice, except to the extent an outstanding
contractual obligation exists. © 2014 Badger Meter, Inc. All rights reserved.
www.badgermeter.com
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