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 to wire signal cables, while its grease-free design makes it easy to mount on pipes.
Space-saving integrated flow sensor and transmitter.
Integrated temperature sensor for simultaneous measurement of flow and temperature (optional).
Easily deployable ultrasonic flow meter S-Flow
Easy installation, space savings.
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.
Benefits of integral ultrasonic flow meter S-Flow
Compact and lightweight
Thanks to the adoption of the latest electronics, the flow meter has achieved an integrated and lightweight design for the flow transmitter and detector.
Easy mounting
Its greaseless design makes it easy to mount on piping. Since it integrates the flow transmitter and detector, it eliminates the need for signal cable wiring.
Excellent resistance against aerated flow
Its digital signal processing technology has dramatically improved its resistance against aerated flow.
High accuracy
This flow instrument comes standard with an accuracy of ±2.0%.
By adopting a new sound velocity measurement system, it can measure fluids of unknown sound velocity and suffers negligible impact from pressure.
Quick response
It achieves a high-speed response time of 0.5 seconds by utilizing digital signal processing.
Excellent performance and easy operation
Its LED and function keys make it easy to perform configurations and troubleshooting.
HIGH PRECISION
EASY TO USE
COMPACT AND LIGHTWEIGHT
RESISTANT
Measuring principle of Integral Ultrasonic Flow meter S-Flow
Transit-time measuring method by Fuji proprietary digital signal processing
By using the ultrasonic pulses transmitted diagonally between the upstream and downstream sensors mounted on the outside of the pipe, the flow rate is measured by detecting the time difference obtained by the flow of fluid.
Capable of a wide range of pipe materials and fluid types
Pipe materials
Metals (stainless steel, steel, copper), Plastics (PVC, PP, PVDF), etc.
Fluid types
Water, ultrapure water, chemicals, oil, etc.
Equipment configuration
Integrates the sensor and flow transmitter to simplify equipment configurations.
Easy installation of Integral Ultrasonic Flow meter S-Flow
Reduces labord hours and installation costs
Clamp-on type requires no pipe modification. It can be installed without stopping equipment.
No need for the sensor-distance adjustment. Anyone can easily install it by simply tightening the screws.
Clamp-on type without pipe modification
Easy installation using a single screwdriver
Easy to set up of integral ultrasonic flow meter S-Flow
Configurable only with three buttons. Simply turn on, configure four settings, and start measuring immediately
No grease required
Special rubber is used to keep the pipe in close contact instead of grease.
No need to store grease for maintenance purposes.
Easy-to-read LED display of flow rate values
Easy-to-read, intuitive 2-row LED display. Front function keys allow for easy operation.
Line 1: Instantaneous flow rate value Line 2: Instantaneous flow rate % value
Line 1: Instantaneous flow rate value Line 2: Pipe temperature
Space-saving thanks to Integral Ultrasonic Flow meter S-Flow
Integral, compact design
Flow transmitter and detector functions are integrated to achieve compact dimensions. Compared to conventional flow transmitter (type : M-Flow FLR ultrasonic flowmeter), the size is reduced by approximately 76%.
Can be installed on densely-spaced piping and inside of equipment.
Its compact design allows installation in areas where space is limited, such as in densely-spaced piping and inside equipment.
Conventional flow meter
Cannot be mounted on densely-spaced piping due to large size
S-Flow ultrasonic clamp on flow meter
Can be mounted on small, densely-spaced piping
Compact and easy to mount inside equipment
Built-in temperature measurement function (optional)
A built-in temperature measurement function, enables simultaneous measurement of flow rate and temperature.
Application examples of S-Flow ultrasonic flow meter
Flow control of 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 densely-spaced small-diameter piping.
Contributes to flow control in semiconductor production lines.
Flow monitoring of water for building air conditioning flow usage
It can be installed to cold and hot water piping throughout the entire building. By measuring the flow rate, it facilitates more efficient fan coil unit (FCU) operations. Similarly, it also facilitates efficient operation of air handling units (AHU) for large spaces. The monitoring of flow rates contributes to energy savings in industrial utilities.
Specifications of S-Flow ultrasonic flow meter
Types and configurations
The S-Flow flowmeter is available in several types depending on the pipe diameter:
FSZ08 for pipe diameters 8A and 10A
FSZ15 for pipe diameters 15A, 20A
FSZ25 for pipe diameters 25A, 32A
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:
Speed from 1 m/s to 5 m/s: ±2% of flow rate
Speed less than 1 m/s: ±0.02 m/s
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:
Fluid temperature : -15 to +85°C (variable depending on ambient temperature)
Ambient temperature : -15 to +60 °C
Ambient humidity: 95% RH or less
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 flow meter!
Cutting-edge technology and easy, grease-free installation for your industrial applications!
