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  1. Flow Meters
  2. Ultrasonic Flow Meters

Dynasonics TFXL Series Ultrasonic Flow Meter

Ultrasonic flow meter for liquids with small amounts of suspended solids or aeration, replaces the YD50-C.

Dynasonics TFXL Series Ultrasonic Flow Meter
Dynasonics TFXL Series Ultrasonic Flow Meter Pipe Mount
Retired products cannot be ordered
The Dynasonics TFX-500w Ultrasonic Flow Meter is the recommended replacement

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  • By Dynasonics
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Product Manual Product Specs
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Call 1-800-884-4967 or email sales@instrumart.com. Open 8:00 am to 5:00 pm ET.
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Overview

Features

  • 11-28 VDC @ 0.25A
  • 0.1 to 40 FPS (0.03 to 12 MPS)
  • 4-20mA output or TTL (pulse or simulated turbine meter)
  • -40 to 185°F (-40 to 85°C) ambient temp
  • 0 to 105°F (-20 to 40°C) hazardous locations integral mount
  • ±0.5% of reading repeatability
  • 0.3 to 30 seconds adjustable response time
  • UltraLink software utility
  • Bi-directional flow measurement system
  • UL 61010-1 & CSA C22.2 No. 61010-1
  • Class I Div. 2 Groups C & D
  • T4 to UL 1604 & CSA 22.2 No. 213

Description

The Dynasonics TFXL ultrasonic flow meter clamps onto the outside of a pipe and does not contact the internal liquid. This non-invasive system allows solids to pass through the pipe with no effect on the flow meter. Y-strainers or filtering devices are not needed. In addition, installation of the Dynasonics TFXL ultrasonic flow meter is easy and low cost.

The Dynasonics TFXL ultrasonic flow meter provides instantaneous rate and accumulated flows along with 4-20mA and pulse outputs. Available with or without a local display, the Dynasonics TFXL ultrasonic flow meter is housed in an enclosure suitable for outdoor mounting. Compact integral mount systems can accommodate pipes 2 inches [50 mm] and smaller. For additional flexibility, remote mount systems are available for pipe sizes 1/2 inch [12 mm] and higher. A software utility is available for customer configuration and in-field calibration.

Greater accuracy can be attained in applications with high levels of entrained gases. The Dynasonics TFXL ultrasonic flow meter will automatically correct displayed flow rates and electronic outputs.

The inherent advantages of the Dynasonics TFXL ultrasonic flow meter over competitive technologies include ease of installation, immunity to suspended solids and gas pockets, and a large bi-directional measuring range. In addition, the non-contact design eliminates any fluid compatibility issues. The Dynasonics TFXL ultrasonic flow meter was designed to replace mechanical flow meters in applications where liquid conditions tend to damage or impede mechanical flow meter operation. No maintenance of the Dynasonics TFXL ultrasonic flow meter is required.

Operating Principle

Transit time flow meters utilize two transducers which function as both ultrasonic transmitters and receivers. The flow meters operate by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers. The burst is first transmitted in the direction of fluid flow and then against fluid flow. Since sound energy in a moving liquid is carried faster when it travels in the direction of fluid flow (downstream) than it does when it travels against fluid flow (upstream), a differential in the times of flight will occur. The sound's time of flight is accurately measured in both directions and the difference in time of flight calculated. The liquid velocity (V) inside the pipe can be related to the difference in time of flight (dt) through the following equation: V = KDdt, where K is a constant and D is the distance between the transducers.

Documents

Spec Sheets

  • Dynasonics TFXL Ultrasonic Flow Meter Datasheet PDF (1.2 MB)

Manuals

  • Dynasonics TFXL Ultrasonic Flow Meter Manual PDF (2.1 MB)

Application Notes and White Papers

  • Dynasonics TFXL Irrigation Case Study PDF (3.8 MB)

Links

  • Flow Meter Application Advisor
  • All possible part numbers

Other

  • Flow Application Information Form (268 KB)

Accessories

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

Dynasonics DTT Transducers for Small Pipes
Dynasonics DTT Transducers for Small Pipes

General purpose, remote transit time transducer sets for small pipes (for pipes up to 2 inches).

Starting at $1,345.00
Dynasonics DTT Transducers for Standard/Large Pipes
Dynasonics DTT Transducers for Standard/Large Pipes

General purpose, submersible or hazardous area remote transit time transducer sets for pipes larger than 2 inches.

Some Models in Stock
Starting at $1,340.00

Accessories

Please consider these optional accessories.

Dynasonics D010-0204-001 PC Cable
Dynasonics D010-0204-001 PC Cable

DB-9 serial cable for connecting meter to PC serial port.

In Stock
$165.00
Dynasonics USB to DB-9 Serial Adapter
Dynasonics USB to DB-9 Serial Adapter

USB to DB-9 Serial Communications Converter used with D010-0204-001 PC Interface Cable.

$205.00
Dynasonics Mounting Rail Assembly
Dynasonics Mounting Rail Assembly

10-inch scaled mounting rail assembly for DTTR transducers.

$150.00
Dynasonics Mounting Track Assembly
Dynasonics Mounting Track Assembly

10- or 16-inch scaled mounting track assembly for DTTN transducers.

Starting at $365.00
Dynasonics D002-2007-001 Mounting Strap
Dynasonics D002-2007-001 Mounting Strap

36 inch stainless steel mounting strap for TFX series meters.

$18.00
Dynasonics D002-2007-002 Mounting Strap
Dynasonics D002-2007-002 Mounting Strap

30 inch nylon mounting strap for UFX series meters.

$18.00
Dynasonics Acoustic Couplant, Grease
Dynasonics Acoustic Couplant, Grease

Acoustic Couplant (Grease) for Dynasonics Meters.

$55.00

Applications

This product can be used in the following applications:

  • Boiler Feedwater
  • DI/RO Water
  • HVAC/R System Monitoring

Need Help? Call a Flow engineer at 1-800-884-4967

We're open 8:00 am to 5:00 pm ET

Jason D. headshot Jason D.
Senior Applications Engineer
22 years at Instrumart
Lou P. headshot Lou P.
Senior Applications Engineer
28 years at Instrumart
Martin K. headshot Martin K.
Applications Engineer
Patrick M. headshot Patrick M.
Applications Engineer
3 years at Instrumart
MaryKate R. headshot MaryKate R.
Applications Engineer
3 years at Instrumart
Dan R. headshot Dan R.
Applications Engineer
3 years at Instrumart
Mathias H. headshot Mathias H.
Senior Applications Engineer
15 years at Instrumart
Jason D. headshot Jason D.
Senior Applications Engineer
22 years at Instrumart
Lou P. headshot Lou P.
Senior Applications Engineer
28 years at Instrumart
Martin K. headshot Martin K.
Applications Engineer
Patrick M. headshot Patrick M.
Applications Engineer
3 years at Instrumart
MaryKate R. headshot MaryKate R.
Applications Engineer
3 years at Instrumart
Dan R. headshot Dan R.
Applications Engineer
3 years at Instrumart
Mathias H. headshot Mathias H.
Senior Applications Engineer
15 years at Instrumart
Jason D. headshot Jason D.
Senior Applications Engineer
22 years at Instrumart

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Dynasonics TFXL Series Ultrasonic Flow Meter
Dynasonics TFXL Series Ultrasonic Flow Meter
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