Badger Meter Series 4000 Sensor - 1/2, 3/4", 1" - Manual (Page 5)

INTRODUCTION
Data Industrial® nonmagnetic flow sensors by Badger Meter provide an accurate measurement of liquid flow. The Series 4000
flow sensor covers applications for ½
" to 1" pipe sizes and a wide range of pressure/temperature specifications. When used
in conjunction with Badger Meter Series 1500, Series 2000, and Series 300 electronics, the measurement may be displayed or
transmitted as a rate or total.
The Series 4000 sensors consist of a molded housing, rotating impeller, and externally mounted electronics housing using
a proprietary, nonmagnetic sensing technology. The closed six-bladed impeller design provides higher and more constant
torque than four-bladed designs, and is less prone to fouling by water borne debris. The shape of the impeller and the
absence of magnetic drag provides improved operation and repeatability even at low flow rates. The housing design allows
the impeller, bearings, shaft, or o-rings to be cleaned or replaced without removing the sensor from the piping system.
Two signal output options are available. One option is a five volt DC square wave frequency proportional to flow rate. Power
for the circuit is provided by a Badger Meter flow monitor or other external source via a three-wire shielded cable. An internal
preamplifier allows the signal to travel 2,000 feet without amplification, 20 feet of three conductor cable is provided with this
option. The second output option is a 4-20mA current analog signal. Power is provided by the two wire loop so the distance
from the receiver is a function of power supply voltage and wire resistance. A 30 inch connector cable is provided with the
analog version.
Sensors of similar type are interchangeable, so there is no need for recalibration after servicing or replacement.
Figure 1: Models
MODELS
Badger Meter provides several basic sensor configurations using the same impeller element. This allows for a wide range
of applications and pipe sizes. Standard configurations use the materials listed above for wetted parts in the housing and
closure. Consult factory for availability of other materials.
All Series 4000 sensor electrical components are self-contained. They may be replaced in the field without requiring
recalibration or breakdown of the piping system. Pressure/temperature ratings for the various models are contained in the
Specifications section of this manual. The Series 4000 flow sensor models are summarized in the tables above.
Installation & Operation Manual
Page 5 April 2012