Integral ultrasonic flow meter S-Flow

This measuring instrument is a clamp-on ultrasonic flowmeter that can measure the volumetric flow rate of a liquid inside a pipe by attaching it from the outside. By making full use of the latest electronic and digital signal processing technologies, this ultrasonic flowmeter is considerably more compact than conventional flowmeters. It integrates the transmitter and flow sensor, eliminating the need for signal cable wiring, while its grease-free design facilitates mounting on pipes.

Discover the S-Flow ultrasonic flowmeter


Integrated ultrasonic flowmeter S-Flow

integrated ultrasonic flowmeter

Flow is "visualized" using Fuji Electric's long-established ultrasonic flow measurement technologies.
Contributes to energy savings and production process solutions.

  • Easy mounting by simply tightening 4 screws.
  • No need to modify piping.
  • Space-saving integrated flow sensor and transmitter.
  • Integrated temperature sensor for simultaneous measurement of flow and temperature (optional).

Download brochures and learn more about the performance of the S-Flow integrated ultrasonic flowmeter

Brochure: Ultrasonic flowmeters for liquids, steam and air

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Brochure: s-flow FSZ compact ultrasonic flowmeter

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Easy-to-deploy ultrasonic flowmeter S-Flow

easy installation space-saving

Easy, space-saving installation.

Global carbon neutrality has been attracting attention for some years now.

Companies are encouraging their activities to achieve high levels of efficiency and energy savings. In this context, there is a growing demand to control fluid flow at the end points of production lines in factories. Fuji Electric has developed an easy-to-deploy integrated flowmeter called "S-FLOW" to meet this demand. It is easy to install, space-saving and affordable.

Advantages of the S-Flow integrated ultrasonic flowmeter

advantages of s flow integrated ultrasonic flowmeter

  1. Compact and lightweight
    Thanks to the adoption of the latest electronics, the flowmeter has achieved an integrated, lightweight design for the flow transmitter and sensor.
  2. Easy installation
    Its grease-free design makes it easy to install in piping systems. As it integrates the flow transmitter and sensor, it eliminates the need for signal wiring.
  3. Excellent resistance to aerated flow.
    Its digital signal processing technology has significantly improved its resistance to aerated flow.
  4. High precision
    It comes as standard with an accuracy of ±2.0%.
    By adopting a new sound velocity measurement system, it can measure fluids with unknown sound velocity and negligible pressure impact.
  5. Fast response
    It achieves a fast response time of 0.5 seconds using digital signal processing.
  6. Excellent performance and ease of use
    LEDs and function keys make set-up and troubleshooting easy.

ultrasonic flowmeter measurement principle

Measuring principle of the S-Flow integral ultrasonic flowmeter

Fuji Electric's own digital signal processing transit time measurement method.

Using ultrasonic pulses transmitted diagonally between upstream and downstream transducers mounted on the outside of the pipe, flow is measured by detecting the time difference obtained by the fluid flow.

transit time measurement method diagram

Product range

TypePipe diameter
FSZ088A, 10Apipe diameter fsz08
FSZ1515A, 20Apipe diameter fsz15
FSZ2525A, 32Apipe diameter fsz25


Measurable pipe materials and fluids

Pipe
materials
Metals (stainless steel, steel, copper), Plastics (PVC, PP, PVDF), etc.
Fluid
types
Water, ultrapure water, chemicals, oil, etc.


Equipment configuration

equipment configuration

Easy installation of an S-Flow integral ultrasonic flowmeter

reduces working hours

Reduces labor hours and installation costs

  • The Clamp-on flowmeter type requires no modification to the pipework. It can be installed without shut-off equipment.
  • There's no need to adjust the distance between the sensors. Anyone can install it easily, simply by tightening the screws.

Clamp-on type without pipe modification

Easy installation with a simple screwdriver

easy installation of the s flow integrated ultrasonic flowmeter

Easy installation of S-flow integrated ultrasonic flowmeter

  • Configurable using just three buttons. Simply switch it on, set four parameters and start measuring immediately.
no grease required

No grease required

  • A special rubber is used to keep the hose in close contact instead of grease.
  • There is no need to store grease for maintenance purposes.
easy-to-read led display of flow values

Easy-to-read LED display of flow values

  • Intuitive, easy-to-read 2-row LED display. Front-mounted function keys for easy operation.
display 1

Line 1: Instantaneous flow value
Line 2: Instantaneous flow value in percent

display 2

Line 1: Instantaneous flow value
Line 2: Pipe temperature


Space-saving thanks to integrated S-Flow ultrasonic flowmeter

Integral, compact design

Flow transmitter and sensor functions are integrated to achieve compact dimensions.
Compared with a conventional flow transmitter (such as the M-Flow FLR ultrasonic flowmeter), size is reduced by around 76%.

integrale desing compact schema

Can be installed on widely spaced pipes and inside equipment.

Its compact design means it can be installed in places where space is limited, such as in densely spaced pipelines and inside equipment.

can be installed on pipes with very wide spaces schematic

Integrated temperature measurement function (optional)

An integrated temperature measurement function allows simultaneous measurement of flow and temperature.

integrated temperature measurement function

S-Flow ultrasonic flowmeter application examples 

Flow control for semiconductor manufacturing equipment

In addition to piping for pure water manufacturing processes, cleaning processes and equipment cooling, it can also be mounted inside equipment where there is widely spaced small-diameter piping.

flow control of semiconductor manufacturing equipment diagram

Water flow monitoring for building air-conditioning applications

The flowmeter can be installed on cold and hot water pipes throughout the building. By measuring flow, it enables more efficient operation of fan coil units (FCUs). Similarly, it facilitates the efficient operation of air handling units (AHUs) for large spaces. Flow monitoring contributes to energy savings in industrial utilities.

water flow monitoring diagram


S-Flow ultrasonic flowmeter specifications

Types and configurations

The S-Flow flowmeter is available in several types depending on the pipe diameter:

Each main unit is configured with an integrated transmitter and flow sensor.

Mounting and measuring method

Using a clamp-on mounting method, the ultrasonic flowmeter offers convenient installation without process interruption. The transit time measurement method guarantees optimum accuracy for homogeneous fluids, where ultrasonic signals can be transmitted efficiently.

Measuring range and accuracy

With a measurement range from 0 to ±5 m/s (minimum 0 to ±0.2 m/s), it guarantees exceptional adaptability. Accuracy is also outstanding:

Pipe materials and thicknesses

The flowmeter is compatible with a variety of pipe materials, including metals (stainless steel, steel, copper) and plastics (PVC, PP, PVDF). Pipe thickness can vary from 1.2 mm to 4.9 mm, ensuring maximum flexibility.

Environmental conditions

The FSZ flowmeter is designed to operate under a wide range of environmental conditions:

Display, Outputs and Options

The flowmeter features a 4-digit 2-line LED display for easy monitoring. Output signals include 4 to 20 mA DC (1-point) and contact (2-point). A pipe surface temperature measurement option is also available.

Power supply and weight

With a power supply of 20 to 27.5 V DC and a power consumption of 2.5 W or less, the S-Flow flowmeter is energy-efficient. Weights vary according to model: FSZ08 (400 g), FSZ15 (500 g), FSZ25 (600 g).


Optimize your flow measurement now with our compact, integrated ultrasonic flowmeter!

Cutting-edge technology and easy, grease-free installation for your industrial applications!