Portable Digital Ultrasonic Flow Meter Kit
Volume discounts available
Volume Discount Schedule
Added to Your Shopping Cart
Please add to cart to keep it or exit the configuration
Please add to cart to keep it or exit the configuration
Failed to Save Configurations, Click on Configure Button Start Again
Lead Time ( If not in Stock): 5 weeks
- 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
- Data Storage: 32K BIT built-in data storage can store two thousand rows of data
- LCD display can display the instant flow, total flow, flow velocity, and working condition
- Reduces installation time, improves installation accuracy. Easy installation, no need cut the pipe, no pressure loss
- Easy to install and no need to cut off the flow, no pressure loss
- Different transducer from DN15~DN6000
Edit OptionsView all models
Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Pipe Diameter Range
Max Process Temperature
DescriptionThe 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
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
Weight: 514 g (1.2lb)
NOTE: Additional Standard and High Temperature Transducer Sets are available. See Accessories.
Rated 3 out of 5 by JoshMechEIT 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 4 out of 5 by Zayna 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
If you do not perform a traceable calibration, who does?
Thank you for your inquiry. We do not have any specific lab recommendations. Any flow calibration lab local to you should be able to provide you the cal report for your process conditions.
Date published: 2020-07-10
1. what is the transducer chain used for? 2. Can data be exported to excel sheet and if so how? Is something additional required? Can system be used to record total GPM and peak GPM over the course of a week if you plug it in instead of using battery
Thank you for your inquiry, about the ultrasonic flow meter. It is used to secure the transducer in place, especially, for larger diameter pipes and the RS232 can be extracted into a an Excel file. We provide the document after the fact and only records flow rate and is not live streaming.
Date published: 2021-04-07
DO YOU HAVE A BRACKET TO HOLD BOTH TRANSDUCERS THAT HAVE A RULER ON IT
Thank you for your inquiry. Unfortunately, no we do not have a bracket like this.
Date published: 2019-12-13
Can this flow meter be used in an application where the pipe that we want to measure flow was submerged in water?
Thank you for your inquiry about the ultrasonic flow meter. Unfortunately, the transducers that wrap or strap around the pipe cannot be submersed in water in general. It will be deemed useless and not transmit any signal.
Date published: 2021-06-03
How do suspended solids in the flow affect the accuracy of this meter?
Thank you for your inquiry about the ultrasonic flow meter. If there is suspended particles greater than 100 microns and 100 ppm in concentration at all times, then, we highly recommend the Doppler style ultrasonic flow meter. If it is intermittently flowing thru the flow meter, it will not hurt the accuracy since it will average the flow when it updates.
Date published: 2021-06-30
Does this meter work with Deionized Water?
Thanks you for your inquiry. There is no issue with using this meter with deionized water.
Date published: 2020-01-22
What is the physical size (dim) for the standard transducers?
Standard transducers size approximation: 6 x 3 x 3 mm
Date published: 2020-11-24
How do I export the data logger info to an excel file?
Thank you for your inquiry about the ultrasonic flow meter. Please email email@example.com and can provide the documentation to review to download the data from the flow meter.
Date published: 2021-04-30
Standard Clamp on Transducer - Small (0 to 90C) Pipe Size DN15~DN100 (3/4" to 4")
4 In Stock
Standard Clamp on Transducer - Medium (0 to 90C) Pipe Size DN50~DN700 (2" to 28")
8 In Stock
Standard Clamp on Transducer - Large (0 to 90C) Pipe Size DN300~DN6000 (12" to 240")
5 In Stock
Hi Temp Clamp on Transducer - Small (0 to 160C) Pipe Size DN15~DN100 (3/4" to 4")
4 In Stock
Hi Temp Clamp on Transducer - Medium (0 to 160C) Pipe Size DN50~DN700 (2" to 28")
13 In Stock
Hi Temp Clamp on Transducer - Large (0 to 160C) Pipe Size DN300~DN6000 (12" to 240")
3 In Stock
Acoustic gel for Standard Transducers
1 In Stock
Acoustic gel for High Temperature Transducers
7 In Stock
Replacement Transducer Cable (Red & Blue) 5Mx2
8 In Stock