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Wall Mount Ultrasonic Flow Meter

$1,591.59

Item# FDT-25W

In stock

Lead Time (If not in stock): 5 weeks
Wall Mount Ultrasonic Flow Meter FDT-25W FDT-25W
  • Accuracy 1%
  • Repeatability 0.2%
  • Positive, Negative and Net Totalizer
  • 2-Line LCD Display

FDT-25W 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.

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Category
Velocity Range
Pipe Diameter Range
Media Type
Accuracy
Form Factor
Max Process Temperature
Output Signal
Display
Supply Power
Communication Protocol
Features


  • Accuracy Value ±1% of reading at rates >0.2 mps
  • Cable Length 5M
  • Cable Type Twisted Pair Line
  • Communications Protocol RS485
  • Data Logging Built in
  • Display Type LCD with Backlight, Chinese/English
  • Maximum Ambient Humidity 85% RH
  • Maximum Ambient Temperature 80°C (176°F)
  • Maximum Liquid Temperature Standard 90°C, Hi Temp 160°C
  • Measurement Type Flow
  • Measurement Units User configured—feet, gallons, ft3, mil-gal, meters, liters, mil ft3, m3, mil-liters, acre-feet, oil barrels (42 gallon), liquor barrels (32.5 gallons), lb, kg
  • Media Type Water, sea water, industrial sewage, acid & alkali liquid, alcohol,beer, all kinds of oils which can transmit ultrasonic single uniform liquid
  • Minimum Ambient Temperature -30°C (-22°F)
  • Minimum Liquid Temperature Standard -30°C, Hi Temp -30°C
  • Minimum Log Interval User configurable
  • Power Source AC/DC
  • Repeatability 0.2%
  • Response Time 0~999 seconds, user configurable
  • Supply Frequency 50/60 Hz

The FDT-25W ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation. The FDT-25W transit-time flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific distance from each other. The transducers can be mounted in V-method where the sound transverses the pipe twice, or W-method where the sound transverses the pipe four times, or in Z-method where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once. This selection of the mounting method depends on pipe and liquid characteristics. The flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers. The difference in the transit time measured is directly and exactly related to the velocity of the liquid in the pipe. The FDT-25W can be used for metallic, plastic and rubber tubes. Applications include Running Water, HAVC, Water Conservation, Metallurgy, Chemical Industry, Machinery, Energy.

FDT25W comes complete with:
1 ea. Wall Mounted Ultrasonic Flow Meter
2 ea. Standard Clamp on Transducers for Pipe Sizes 3/4" to 4"
1 ea. Hexagonal Wrench
2 ea. Steel clamps
1 ea. Acoustic gel for Standard Transducers
Transducers for larger pipe sizes and extended temperature ranges are available in the Accessories Section for an additional charge.
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Our data collection system has a powered 4-20mA loop, this device also has a powered 4-20mA loop, is there a way to turn off the power to the loop in the FDT-25W and let our DAQ power the loop?

Asked by: Electrical Engineer
Thank you for your inquiry! The FDT-25W can be wired for an active or passive 4-20 loop. If power is supplied by the data acquisition system you will use 23 (AO+) and 25 (LPIN) rather than 23 and 24.
Answered by: Application Engineer JM
Date published: 2023-04-28

Does the unit come with the red/ blue transducer cables? It does not show up under "whats included" and the model number "TCH" is not under the accessories page.

Asked by: dwilson01
Thank you for your inquiry. The transducer is included for pipe diameters from 3/4 to 4 inch which is found in the Accessories Tab.
Answered by: Applications Engineer JJC
Date published: 2024-02-22

In ultrasonic Flowmeter TDS-100 Ver18.56. The Menu 2. (2A) "Maxmium Flowrate". It isn´t in usermanual. Wich is the function of this parameter? What we should consider to enter this value? Do you have documentation about it? Help us please.

Asked by: luisgalo
Thank you for your inquiry about the ultrasonic flow meter. Please email the Flow Group at flow@omega.com and can advise with our Design Engineering Group
Answered by: Applications Engineer JC
Date published: 2021-08-05

Does this model FDT-25W work on ductile iron pipe (18.75mm thick) having inner lining of cement mortar (12.5 mm thick)?

Asked by: Anonymous
Thank you for your inquiry about the ultrasonic flow meter. Unfortunately, it will not work as a result of the liner indicated.
Answered by: Application Engineer JC
Date published: 2022-06-06

We are using a doppler flow meter but the clenliness of the water varies quite a bit and when it is too clean we don't get accurate readings. How dirty can the water get and still be read accuratly with transit time?

Asked by: Chuck B
Thank you for your inquiry about the Transit Time ultrasonic flow meter. Transit Time works best when the liquid is clean or below 100 microns in particle size AND less than 100 ppm in concentration. In the event there is some suspended particles, it will not detect it since it is very small.
Answered by: Applications Engineer JC
Date published: 2021-04-29

Good afternoon. When there is no liquid circulation in the pipe and the meter also indicates a instant value of flow, how to solve this? How can I reset it or put a minimum cut on it? BR

Asked by: OscarBsAs
Thank you for your inquiry. Please email the Flow Group at flow@dwyeromega.com and can provide the information you requested.
Answered by: Applications Engineer JJC
Date published: 2024-03-07

Will this flow meter work with a refrigerant as the liquid?

Asked by: Exergy Engineer
Thank you for your inquiry! This flow meter will work with nearly all clean liquids. Menu 20 in the programming can be used to select standard fluid types like water or oil. For non standard fluids not listed in menu 20 the fluid parameters can be entered in menus 21-23 to accurately represent the process media.
Answered by: Application Engineer JM
Date published: 2022-09-28

I'm looking for a flow meter that I can move around my plant to check process water flow at different locations. I would need one that can operate on Steel and PVC piping ranging from 2" to 10". Would this be a good meter for my application?

Asked by: Racecar64
Thank you for your inquiry about an ultrasonic flow meter. There is a more convenient hand held version, FDT-25, which is portable and will have a transducer that will range from 3/4 to 4 inch and will need to purchase a 2nd transducer for larger pipes, STD-HM.
Answered by: Application Engineer JC
Date published: 2022-04-27
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Standard Clamp on Transducer - Small (0 to 90C) Pipe Size DN15~DN100 (3/4" to 4")
$388.20
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Standard Clamp on Transducer - Medium (0 to 90C) Pipe Size DN50~DN700 (2" to 28")
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Standard Clamp on Transducer - Large (0 to 90C) Pipe Size DN300~DN6000 (12" to 240")
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Hi Temp Clamp on Transducer - Small (0 to 160C) Pipe Size DN15~DN100 (3/4" to 4")
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Hi Temp Clamp on Transducer - Medium (0 to 160C) Pipe Size DN50~DN700 (2" to 28")
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Hi Temp Clamp on Transducer - Large (0 to 160C) Pipe Size DN300~DN6000 (12" to 240")
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Acoustic gel for Standard Transducers
$32.04
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Acoustic gel for High Temperature Transducers
$42.71
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Pipe Clamp (for upto DN300/12")
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Pipe Clamp (for upto DN700/28")
$54.09
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Pipe Clamp (for upto DN1000/40")
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