Badger Meter PFT-1E, PFT-4E Specifications

Electronic Scalable Transmitters

Models PFT-1E & PFT-4E

OVERVIEW

The models PFT-1E and PFT-4E are electronic scalable pulse transmitters with AC/DC inputs and outputs. The model PFT-1E combines with the disc and OP meter lines while the model PFT-4E is used with the Industrial turbo meter line.

These electronic transmitters can be scaled to almost any pulse rate, allowing recalibration by resetting the scale factor with four switches. The PFT-1E transmitter can be calibrated for use with different size meters simply by re-setting the switches.

OPERATION

The flow of fluid through any of the meters results in movement of the meter measuring element, which rotates an internal 4-pole magnet. The poles of the magnet are sensed by a magnetoresistive pickup that produces four pulses for each revolution of the magnet. These signals are sent to the electronic board where they are conditioned and scaled to the desired unit of flow (for example, one pulse per ounce, per gallon, and so on). The meter factor, which is the number of revolutions of the measuring element per unit of measure, rarely coincides with the desired application requirements and has to be modified or scaled to standard engineering units. This scaled pulse is then sent to secondary equipment such as a controller or remote totalizer in the form of a switched AC voltage or a DC current sinking pulse (open collector NPN transistor).

PFT-1E Transmitter

FEATURES

• Sensor will withstand fluid temperatures to 250° F

• Solid-state circuitry for long life

• Fast calibration with (4) switches; change gears are eliminated

• LED indicator for visual pulse detection

APPLICATIONS

Designed for totalizing, rate calculation or batching through direct input into a totalizer, pre-set counter or process controller that does not have scaling capabilities.

XMT-DS-00837-EN-15 (January 2018)

• Optically isolated outputs prevent false counts due to line noise

• Field retrofit available

• Rugged, high impact resistant housing

• Corrosion proof protection

• Water tight - NEMA 4X Rating

• Remote mounting available

Product Data Sheet

Transmitter Specications

TRANSMITTER 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 (water tight &

corrosion proof)

Operation Sensor Magnetoresistive sensor

Scaling & Calibration (4) switches Operating Temperatures

Electrical DC Input Power 12…24V DC

DC Output Opto-Isolated open

Transistor Rating 50 mA @ 24 VDC AC Input Power 115 VAC ± 15% AC Output Opto-isolated Zero

Triac Rating 130 V RMS @ 500 mA Scaling Resolution 0.0001 to 0.9999 Max. Pulse Resolution

(Limit AC pulse output to 10 pulses per second due to electrical characteristics of Triac.)

Transmitter Selection Chart

Meter Type PFT-1E PFT-4E

RCDL X

IND. TURBO X

OP X

Scaler Board: – 4…185° F Sensor: – 4…250° F

collector NPN transistor

Crossing Triac

See chart

SCALE FACTOR CALCULATION

Pulses per Gallon Wanted Scale Factor = ---------------------------------------------- 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 on the scaling switches of the transmitter to read the meter flow to the nearest 0.1 of a gallon.

Meter Size Pulse/Oz. Pulse/Gal.

RCDL-25 RCDL-35 RCDL-40

RCDL-70 RCDL-120 RCDL-170

IND. TURBO IND. TURBO IND. TURBO IND. TURBO

OP OP OP

5/8 3/4

1 1

1-1/2

2 3 4 6

1/2

1 2

1.550

0.989

0.702

0.366

0.186

0.114

0.271

0.194

0.040

0.017

1.742

0.599

0.161

198.340

126.671

89.781

46.752

23.867

14.565

34.720

24.800

5.120

2.160

222.960

76.640

20.560

Shown with pin# on new board for same function

New Board Wire Color/Old Board

Pin 1 Blue (Blue/Brown) Pin 2 Black (White/Black) Pin 3 White (White/Black) Pin 4 Brown (Blue/Brown) Pin 5 Orange (Orange/Brown) Pin 6 Brown (Orange/Brown) Pin 7 Black (Black/Red) Pin 8 Red (Black/Red)

123

Page 2 January 2018XMT-DS-00837-EN-15

Conversion Chart

(Wire colors from old style board)

Scaling Switch Settings

SCALING SWITCH SETTINGS

For units with PC boards that have DIP switches, use the following guide to set the scale factor:

To set the switches, move the white switches to the UP position. The values of the different switch combinations are shown below.

OTE:N Switch positions are represented by the

black squares in this graphic.

Units ordered prior to 02/01/2018 will NOT produce pulses. Units ordered after 02/01/2018 will pulse using a value of “9”.

Example

This example shows the unit set at 0.4032.

CIRCUIT BOARD

Page 3 January 2018 XMT-DS-00837-EN-15

Electronic Scalable Transmitters, Models PFT-1E & PFT-4E

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. © 2018 Badger Meter, Inc. All rights reserved.

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Badger Meter PFT-1E, PFT-4E Specifications

Specifications and Main Features

Frequently Asked Questions

User Manual