
Unscaled Pulse Transmitters
Model PFT3 (For Turbo Meters)
DESCRIPTION
The model PFT3 is a reed switch transmitter which has an unscaled
pulse output for use with the Badger Meter line of Industrial
Turbo meters.
This transmitter incorporates a reed switch sensor. It will directly
interface with the Badger Meter controllers, and electronic
indicators as well as other devices that have similar
operating characteristics.
These transmitters do not have gear trains. The reed switch directly
senses the magnet within the rotor as it turns.
OPERATION
The interaction between the transmitter sensor and the two (2)
pole meter magnet, generates two pulses for each revolution of
the magnet, which will rotate a precise number of times for a given
quantity of fluid passing through the meter.
The table on the back lists the transmitter output, expressed in
pulses per US gallon, for the various sizes of Industrial Turbo meters
that you could use with this transmitter.
These output pulses are normally fed to instrumentation that can
multiply these pulses by a number between 0.0001…0.9999 (the
scale factor), which will express the output pulses as standard
engineering units of measure such as 1 pulse per US gallon, liter
and quart.
The Badger Meter electronic batch controllers and electronic
registers have the ability to perform this scaling function.
APPLICATION
Specially designed for Turbo meter applications where external
power is not available.
This transmitter can be directly connected to the ER-9 and ER-10
totalizer/rate indicator, which gives you a metering system that
does not rely on any external power source.
FEATURES
• Does not require external power
• Interchangeable with PFT3E transmitter
• Rugged, high impact resistant enclosure
• High temperature rating: 250° F (121° C)
• Corrosion resistant components
• Watertight, NEMA 4X housing
• Sealed pickup assembly
XMT-DS-00351-EN-05 (June 2014)
Product Data Sheet

SPECIFICATIONS
HOUSING
Material: High Impact, Reinforced Nylon
Mounting: Bayonet Type with Set Screw, 360° Orientation
Connections: Two 1/2" NPT Threaded Conduit Ports
Protection: NEMA 4X (Watertight and Corrosion Proof)
OPERATION
Operating Temperature: 250° F Max. (– 40…121° C)
SWITCH RATING
120V max.
0.5 Amp
White
White
SCALE FACTOR CALCULATION
Scale Factor =
See the chart below for the average number of output pulses per US gallon for your particular meter. For more precise calculations, use the
information on the transmitter data plate when figuring scale factors.
Example:
Compute the scale factor for a 3" turbo meter. (You want to measure the flow to the nearest US gallon.)
Scale Factor = 1/12.4 = 0.0806
Enter 0.0806 in the scaling function of the controller to read the meter flow to the nearest US gallon.
Meter Size Pulse/US Gallon Pulse/Liter
TURBO 2" 17.360 4.586
TURBO 3" 12.400 3.276
TURBO 4" 2.560 0.626
TURBO 6" 1.080 0.285
Control. Manage. Optimize.
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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Pulses per unit wanted
Transmitter output in pulses per unit