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Portable Digital Ultrasonic Flow Meter Kit


Article# FDT-25

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Délai de livraison (si pas en stock): 5 semaines
Portable Digital Ultrasonic Flow Meter Kit FDT-25 FDT-25
  • High Accuracy Ultrasonic Flow Meter, better than 1%.
  • Wide Measurement Range from DN15~DN6000mm
  • Rechargeable Power Supply: Built-in high-capacity NiMH rechargeable batteries will last more than 10 hours (Fully charged).
  • Non invasion measurement, can achieve measurement with clamp on sensors

FDT-25 Options de modèles

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Velocity Range
Pipe Diameter Range
Media Type
Form Factor
Max Process Temperature
Supply Power


The FDT-25 handheld ultrasonic flowmeter is designed to work with clamp-on transducers to enable the flow of a liquid within a closed pipe to be measured accurately without needing to insert any mechanical parts through the pipe wall or protrude into the flow system.

Using ultrasonic transit time techniques, the FDT-25 is controlled by a micro-processor system which contains a wide range of data that enables it to be used with pipes with an outside diameter ranging from 15mm up to 6000mm (depending on model) and constructed of almost any material. The instrument will also operate over a wide range of fluid temperatures.

FDT-25 comes complete with:
1 ea. Handheld Ultrasonic Flow Meter
2 ea. Standard Clamp on Transducers for Pipe Sizes 3/4" to 4"
2 ea. Transducer Chains
2 ea. Transducer Clamps
1 ea. 3M Ruler
1 ea. Acoustic gel for Standard Transducers
1 ea. Universal Power Adapter/Charger
1 ea. RS232 Computer Cable
Transducers for larger pipe sizes and extended temperature ranges are available in the Accessories Section for an additional charge.

Accuracy: ±1% of reading at rates >(0.2m/s) 0.6 ft/s
Repeatability: 0.2%
Linearity: 0.5%
Response Time: 0 to 999 seconds (user configured)
Velocity: (±32 m/s)
Media Temperature Range:
Standard Transducers: 0 to 90°C (32 to 194°F)
With High Temp Transducers: 0 to 160°C (32 to 320°F)
Operating Temperature: Meter, -20 to 60C (- 8 to 140F)
Operating Humidity: Meter, 85% RH
Pipe Size: DN 15 to 100 mm (0.75 to 4") standard [up to DN 6000 mm (236") with optional transducers]
Rate Units (User Configured): Meter, feet, cubic meter, cubic feet, USA gallon, liter, oil barrel, USA liquid barrel, imperial liquid barrel, million USA gallons
Totalizer: 7-digit totals for positive, negative and net flow
Liquid Types: Most liquids including clean water, sea water, waste water, chemical liquids, oil, crude oil, alcohol, beer, and more
Pipe Material: All metals, most plastics and fiberglass (Liner allowed)
Security: Setup values modification lockout. Access code needs unlocking.
Display: 4 x 16 English letters, 4 x 8 Chinese characters
Communications: RS232C (baud rate from 75 to 115,200 bps)
Transducer Cable Length: 5 m
Power: 3 "AAA" NiMH built-in batteries (included) with 100 to 240 VAC charger, fully charged lasts over 10 hrs.
Data Logger: Built-in, stores over 2000 lines of data
Totalizer/Calibration: 7-digit totals for net, positive and negative flow respectively press-to-go for calibration
Housing Material: ABS plastic with aluminum alloy protective carrying case
Case: (IP65)
Weight: 514 g (1.2lb)

NOTE: Additional Standard and High Temperature Transducer Sets are available. See Accessories.
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Rated 4 out of 5 by from Decent Portable Flow meter The flow meter is decent. But the manual is sorely lacking. I had to look up youtube videos because it doesn't tell you anything about applying the gel, or the chain or anything. I don't understand how to use the chain. It should have come with straps to keep the magnets in place because they tend to slip on a vertical pipe. Other than that the flow meter seems to work ok, but I was not very sure how accurate the flow is.
Date published: 2021-05-07
Rated 3 out of 5 by from Poor Submenu for Compatible Transducers Plenty of positives to the meter. The biggest downfall is that the compatible transducers are not listed in the transducer type submenu. There is no reason for this to be a confusing process but this submenu in particular is terrible.
Date published: 2021-03-31
Rated 5 out of 5 by from Thats why we purchase from Omega Handles the job perfectly, that's why we purchased from Omega
Date published: 2023-10-20
Rated 3 out of 5 by from Meters worked well, overall. I ordered seven of these meters. One shipped with a completely dead battery that would not hold a charge. Very disappointing. Others worked well on bare galvanized and bare stainless steel pipe. Ask Omega tech support for a helpful install guide (you have to ask for it - not included in box).
Date published: 2023-02-20
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