Badger Meter FT-1E, PFT-2E, PFT-3E Specifications

Electronic Unscaled Pulse Transmitters

Models FT-1E, PFT-2E & PFT-3E

DESCRIPTION

The models FT-1E, PFT-2E and PFT-3E are electronic transmitters which have unscaled pulse outputs for use with Badger Meter’s line of industrial turbo, disc, and oscillating piston flow meters. (See transmitter selection chart below.)

These transmitters incorporate magneto resistive sensors with open collector NPN transistor outputs. They will interface with The Badger Meter PC200 controller as well as other devices that have similar operating characteristics.

This style of electronic transmitter offers improved performance over mechanical transmitters by elimination of mechanical coupling to the meter in addition to providing the higher reliability and resolution of solid-state components.

OPERATION

The interaction between the unscaled transmitter and the 4-pole meter magnet generates four 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.

Table 2 lists the transmitter output, expressed in pulses per ounce and pulses per gallon, for the various types and sizes of meters that you could use with these transmitters.

These output pulses are normally fed to a process controller 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, 10 or 100 pulses per gallon, liter or quart.

The Badger Meter electronic batch controllers and registers have the ability to perform this scaling function.

Meter Type FT-1E PFT-2E PFT-3E

Disc X

Turbine X

OP X

FEATURES

• Long-life, all solid-state components

• Rugged, high impact resistant enclosure for PFT-2E and PFT-3E

• Stainless steel cover (FT-1E only)

• High temperature rating: 250° F

• Corrosion resistant components

• Watertight - NEMA 4X housing (PFT-2E and PFT-3E)

• Sealed pickup assembly (all models)

SPECIFICATIONS

HOUSING

Material: High Impact, Reinforced Nylon (PFT Series)

Mounting: Bayonet Type with Set Screw, 360° Orientation

Connections: Two 1/2" NPT Threaded Conduit Ports

Protection: NEMA 4X (Watertight and Corrosion Proof)

OPERATION

Type: Solid State

Pulse Generation: Open Collector NPN Transistor

Operating Temperature: –40° to 302° F* (–40° to 150° C)*

*Limited by flow meter specifications

ELECTRICAL

Supply Voltage: 6.0…24V DC

Supply Current: 13.5 mA Maximum

Output Type: Current Sinking (NPN)

Output Current: 20 mA Maximum

MAGNETIC

Magnetics Type: Omnipolar

GAUSS CHAR.

Typical Operate: 15

Typical Release: 11

Typical Differential: 4

XMT-DS-00350-EN-04 (June 2014)

Product Data Sheet

6 to 24 VDC

+ Red

Output

Green

- Black

Magneto resistive Sensor

SCALE FACTOR CALCULATION

Scale Factor =

Pulses per gallon wanted

Transmitter output in pulses per gallon

See the chart below for the average number of output pulses per 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 0.1 gallon.)

Scale Factor = 10/24.80 = 0.4032

Enter 0.4032 in the scaling function of the controller to read the meter flow to the nearest 0.1 of a gallon.

Meter Size Pulse/Oz. Pulse/Gal.

RCDL 25 5/8" 1.550 198.340

RCDL 35 3/4" 0.989 126.671

RCDL 40 1" 0.702 89.781

RCDL 70 1" 0.366 46.752

RCDL 120 1-1/2" 0.186 23.867

RCDL 170 2" 0.114 14.565

TURBO 2" 0.271 34.720

TURBO 3" 0.194 24.800

TURBO 4" 0.040 5.120

TURBO 6" 0.017 2.160

OP 1/2" 1.742 222.960

OP 1" 0.599 76.640

OP 2" 0.161 20.560

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 specications without notice, except to the extent an outstanding contractual obligation exists. © 2014 Badger Meter, Inc. All rights reserved.

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