Badger Meter 7500 Series Mag Meter - Manual

Installation &
Operation Manual
BadgerMeter,Inc.
fi
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 total-
izer display unit for monitoring purposes, or to both devices
simultaneously. Magnetoflow ® 7500P operation is not affected
by the presence of 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 installation,
operation and maintenance of Badger's Magnetoflow ® 7500P
Mag Flowmeters. To ensure proper performance of the meters
covered, the instructions given in this manual should be thor-
oughly understood. Retain the manual in a readily accessible
location for future reference.
DESCRIPTION AND OPERATION
Badger's 7500P Mag meters are intended for use in fluid
metering applications for process batching in Industrial plants
or concrete operations.
The 7500P 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 carbon 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 this magnetic field is "cut"
by the conductive liquid flowing through 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
SCOPE OF THIS MANUAL
Coil
DC supply
Electrode
Flow
Liner
Magnetoflow ®
Mag Meter
Model 7500P Meter
IOM-075-04
Part No. 53400-075
3-09