Ultrasonic Flowmeter
Flowtel Engineering Series FEULF Model Ultrasonic Flow/Heat Meters utilize the transit-time principle to measure the velocity of relatively clean liquids in full pipes. They are clamp-on devices that attach to the exterior of the pipe (and fit a variety of pipe sizes) and enable measurement of corrosive liquids without damage to the ultrasonic sensor. Converters can be installed at indoor or instrument cabinet transducers should be installed on the measuring pipe and both will be connected by cable. This flowmeter can be virtually applied to a wide range of measurement. A variety of liquid applications can be accommodated : Ultra-Pure Liquids, Water, Chemicals, Raw Sewage, Plant Effluent, Oil, Beverage, etc.
Ultrasonic Flowmeter
Code: USFM-FL, Model: FEULF
Flowtel Engineering Series FEULF Model Ultrasonic Flow/Heat Meters utilize the transit-time principle to measure the velocity of relatively clean liquids in full pipes. They are clamp-on devices that attach to the exterior of the pipe (and fit a variety of pipe sizes) and enable measurement of corrosive liquids without damage to the ultrasonic sensor.
Converters can be installed at indoor or instrument cabinet transducers should be installed on the measuring pipe and both will be connected by cable. This flowmeter can be virtually applied to a wide range of measurement. A variety of liquid applications can be accommodated : Ultra-Pure Liquids, Water, Chemicals, Raw Sewage, Plant Effluent, Oil, Beverage, etc.
Product Details
Features
➢ Easy operation without cutting pipes
➢ No need to cut off water & supply no pressure loss
➢ Wide flow measurement
➢ Easy for Installation
➢ Comes in Several types of transducer(sensor) such as clamp-on, insertion & In-line for selection, pipe size from 15NB to 6000NB
➢ Temperature & heat can also be measured by connecting PT100 sensors on both water supply & return pipes
➢ Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability
➢ Accuracy : ±1%
1 - Hand Held Ultrasonic Flowmeter (Model: FEULF-H)

Handheld ultrasonic flow meter realizes non-intrusive measurement by simply clamp the sensors on pipe surface, with remarkable features of small size, easy to carry, no pressure drop and high accuracy.
• Specifications
- Display : 4-16 character with backlight
- Interface : RS232
- Data Storage : Built-in 32 Mbit logger
- Pipe Material : Carbon steel, stainless steel, cast iron, copper, PVC
- Measuring Pipe Range : 25-6000mm
- Liquid : Water, sewage, etc. (Full of pipeline)
- Flow Velocity : 0 - 32m/s
- Power Supply : Built in rechargeable Ni-MH batteries,12 hours' operation (Continuous)
- Power Consumption : 1.5W
- Housing : ABS
- Temperature : -20°C - 160°C
2 - In-Line Ultrasonic Flowmeter (Model: FEULF-IL)

Ultrasonic Inline Flow Meter is a commonly used flow and heat measurement instrument. It is mainly used to measure fluid (liquid) flow and heat in closed pipe sections. It has many advantages such as high cost performance, wide application, good adaptability, relatively high precision, relatively economical and durable.
• Specifications
- Accuracy : ±1%
- Velocity Range : 0-10m/s
- Fluid Type : Water, seawater, industrial sewage, acid and alkali liquids,alcohol,various oils & other single uniform liquids that can conduct ultrasonic waves
- Measuring Pipe Range : 15mm to 6000mm
- Pipe Material : Steel, stainless steel, cast iron, cement pipes, copper, PVC, aluminum, fiber glass and other dense pipes are allowed to be lined
- Process Connection : Threaded/Flanged
- Power Supply : 8V36VDC (optional) or 85V264VDC (optional) or 3.6V lithium battery power supply (optional) Power consumption : 1.5W
- Output : 4mA~20mADC
- Input : Can be connected to a three-wire temperature sensor to achieve heat measurement
- Interface : RS485
- Protocol : Modbus
- Temperature : -30°C-160°C
- Installation : Upstream 10D, Downstream 5D, 30D away from pump outlet
• Transducers
Above all these Ultrasonic Flowmeters can work with different sensors, clamp on, insertion and inline type, please select proper sensors according to the sensor characters and your installation site & with heat measurement by connecting PT100 temperature sensors.
| Flow Transducer | Picture | Model | Measuring Range | Temperature |
| Clamp on | View | FS-2 (Small) | DN15-100 | -30 - 90°C |
| FM-1 | DN50-700 | |||
| FL-1(Large) | DN300-6000 | |||
| High Temp. Clamp On | View | FS-2-HT (Small) | DN15-100 | -30 - 160°C |
| FM-1-HT(medium) | DN50-700 | |||
| FL-1-HT (large) | DN300-6000 | |||
| Insertion | View | FC-1 (Standard) | DN50-6000 | -30 - 160°C |
| FC-2 (Extended) | DN50-6000 | |||
| FP-1 (Parallel) | DN80-6000 |
• Application
Flow meter can be applied to a wide range of pipe flow measurements. Applicable liquids include pure liquids as well as liquid with small quantity of tiny particles. Examples are :
- Water (hot water, chilled water, city water, sea water, waste water, canal water etc.)
- Sewage with small particle content
- Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.)
- Chemicals (alcohol, acids, etc.)
- Plant effluent
- Beverage, liquid food
- Ultra-pure liquids
- Solvents and other liquids
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