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Clamp on Transit Time Ultrasonic Flow Meter For 2.5" to 10" Pipes

Wall Mount Ultrasonic Flow w/IP54 Rail Mounted Transducers, 15' Cable



In stock

Lead Time (If not in stock): 4 weeks
Wall Mount Ultrasonic Flow w/IP54 Rail Mounted Transducers, 15' Cable DW-G-KZ-F-S-AC-WW-XX-G-F DW-G-KZ-F-S-AC-WW-XX-G-F
  • Clamp-on, non-invasive Flow Meter
  • Bidirectional flow measurement system
  • Measures flow rate, total and velocity of water flow
  • Set up the meter through keypad interface or with SoloCUE® Flow Device Manager software

DW-G-KZ-F-S-AC-WW-XX-G-F Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Transducer Type / Cable Length
Pipe Diameter Range
Media Type
Max Process Temperature
Output Signal
Supply Power
Communication Protocol

  • Display Type LED
  • Maximum Ambient Temperature 60C (140F)
  • Minimum Ambient Temperature -20C (-4F)
  • Power Source 9 to 28 Vdc
  • Communication Port USB, Type mini-B
  • Environmental Rating/Protection IP66
  • Max Process Temperature 90C (194F)
  • Meter Style Remote Mounted
  • Transducer Type Clamp-on Ultrasonics
  • Units of Measure Velocity, Totals, Flow Rate

The TFX-500w transit time ultrasonic flow meter measures volumetric flow of clean water in pipes 10 in. or smaller. By clamping on the outside of the pipe, the ultrasonic meter installs without cutting or tapping the pipe.


The TFX-500w meter is well suited for building automation, water distribution and wastewater collection in new and retrofit applications. In addition to having lower installation costs than an inline flow meter, the TFX-500w meter can be installed while the system continues to operate without interruption.
The TFX-500w meter is suitable for:

• Potable water
• Reclaimed water
• Chiller water
• Boiler feed water
• Make-up water
• Condenser water
• Condensate


Transit time flow meters use two transducers that 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.


Model Construction Cable Length Pipe/Tubing Sizes
KZ (IP54), Standard pipe, Integrated rail PBT glass filled, Ultem®, Nylon cord grip PVC cable jacket; –40…250° F (–40…121° C) 100 ft (30 m) max 2.5…10 in. (DN65…DN250)
RZ (IP54), Standard pipe PBT glass filled, Ultem®, Nylon cord grip PVC cable jacket; –40…250° F (–40…121° C) 300 ft (90 m) max. 2.5…10 in. (DN65…DN250)
NZ (IP67), Standard pipe CPVC, Ultem, Nylon cord grip Polyethylene cable jacket; –40…194° F (–40…90° C) 300 ft (90 m) max 2.5…10 in. (DN65…DN250)
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Rated 5 out of 5 by from Very slow customer service Very slow customer support. Device has power and display backlight is on but no digits. Customer support tells me to check transformer fuses and power, doesn't understand device has power. Was able to connect with a USB cable and programmed it so there's a reading until I hear back from warranty department, which is not faster than customer service. It's been a few days and still waiting for anyone to follow up with me.
Date published: 2023-10-02
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What is the update rate of this flowmeter?

Asked by: JJ FF
Thank you for your inquiry! The update rate can vary but the default damping setting for these units is 40 seconds. Please see page 28 of the manual for further information regarding settings that affect the response time of the unit.
Answered by: Application Engineer JM
Date published: 2022-05-23

Is there a limit/maximum of a steel pipe thickness for the flowmeter to work?

Asked by: JJ FF
Thank you for your inquiry! The maximum wall thickness for the TFX-500W models is 1".
Answered by: Application Engineer JM
Date published: 2022-05-19
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