Owner manual
BadgerMeter,Inc.
®
Installation &
Operation Manual
IOM-081-02
Part No. 53400-081
3-09
the liquid. The electronic converter measures this voltage,
processes the signal, and provides two digital pulse out-
puts, 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. Magnetoflow
®
7500S operation is
not affected by suspended solids in the liquid. Variations of
liquid temperature, viscosity or density have no influence in
its principle of operation. A set of convenient, field proven
pulse scaler rotary switches are provided for easy and
straight-forward batch accuracy compensation.
This manual contains information concerning the installa-
tion, operation and maintenance of Badger's Magnetoflow
®
7500S Sanitary Mag Flowmeters. To ensure proper perfor-
mance of the meters covered, the instructions given in this
manual should be thoroughly understood. Retain the manual
in a readily accessible location for future reference.
DESCRIPTION AND OPERATION
Badger's 7500S Mag meters are intended for use in fluid
metering applications for process batching where approved
sanitary equipment is required.
The 7500S Mag meter is a stainless steel flow tube with an
internal isolating lining. Two electromagnetic coils are lo-
cated 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
SCOPE OF THIS MANUAL
Coil
DC supply
Electrode
Flow
Liner
Magnetoflow
®
Mag Meter
Model 7500S - Sanitary Meter