Badger Meter Irrigation Sensors - 1/2 and larger" - Manual (Page 3)

INTRODUCTION
Used in conjunction with any Badger Meter impeller flow monitor or transmitter, Badger Meter non-magnetic flow sensors
provide an accurate reading of the rate of liquid flow as well as total accumulated flow. A number of sensor models are
offered, which cover applications for a wide range of pipe sizes and pressure/temperature specifications.
The flow sensors generate a frequency which is proportional to flow rate. An internal pre-amplifier allows the pulse signal to
travel up to 2000 feet without further amplification. Power to operate the sensor is provided by the flow monitor. The impeller
bearing assembly, shaft and O-rings are replaceable in the field.
Badger Meter flow sensors feature a closed, six-bladed impeller design, using a proprietary, non-magnetic sensing technology.
The forward-swept impeller shape provides higher, more constant torque than four-bladed impeller designs, and is less
prone to fouling by water-borne debris. The forward-curved shape, coupled with the absence of magnetic drag, provides
improved operation and repeatability, even at lower flow rates. As the liquid flow turns the impeller, a low impedance signal is
transmitted with a frequency proportional to the flow rate.
Sensors of similar type are interchangeable, so there is no need for recalibration after servicing or replacement.
ELECTRONIC TYPES
Badger Meter provides several basic sensor configurations using the same impeller element. This allows for a wide range of
applications and pipe sizes. Sensors are normally supplied with 20 feet of 2-conductor 20 AWG shielded U.L. type PTLC 1050C
cable. Optional sensors designated with the prefix "IR" feature two single conductor 18 AWG solid copper wire leads
48 inches in length with U.L. Style 116666 direct burial insulation. These IR models are used in below grade applications
such as irrigation, municipal, and groundwater monitoring. All Series 200 sensor electrical components are self-contained.
Pressure/temperature ratings for the various models are contained in the "
Specifications " section of this manual. These models
can be further described as follows:
Standard Sensor
Designed for indoor or protected area applications such as HVAC, pump control, and industrial process monitoring where the
flow rates are between 0.5-30 feet/second and temperatures are below 2210F. Standard sensors are supplied with 20 feet of
2-conductor 20 AWG shielded U.L. type PTLC 1050C cable.
IR Sensor
Designed for below grade applications such as irrigation, municipal, and groundwater monitoring where the flow rates are
between 0.5-30 feet/second and temperatures are below 1800F. IR sensors are supplied with two single conductor, 18 AWG
solid copper wire leads 48 inches in length with U.L. Style 116666 direct burial insulation.
CSA Sensor
Designed for indoor or protected area applications where intrinsic safety is required and the flow rates are between
0.5-30 feet/second and temperatures are below 2210F. CSA sensors are supplied with 20 feet of 2-conductor 20 AWG shielded
U.L. type PTLC 1050C cable. These sensors must be used with an approved safety barrier.
Models 228BR, 228CB, and 228SS
Sizes of 2 inch and 2-1/2 inch are available in this series.
Model 228BR
This model consists of a Model 220BR sleeve and hex mounting adapter assembly inserted in a 2 inch or 2-1/2 inch bronze tee
and preset to a specific height. The 2 inch size includes copper solder adapters for mating to copper tubing.
Installation & Operation Manual
Page 3 August 2012