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Ultrasonic flow measurement for air and nitrogen

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Ultrasonic air flow meter


 

The FWD ultrasonic air flow meter measures flow rate of air or nitrogen gas

As an air flow sensor, it is ideal for the management of the operating load rate of compressors, the supervision of the compressed air consumption in factories and detection of air leakage in plants.

This mass flow meter for compressed air marks a real technological breakthrough in air flow measurement. It allows to highlight your compressed air consumption. Its objective is to make important energy savings by identifying the consuming networks and the compressed air leaks. With a flawless accuracy, this mass flow meter allows you to control and adjust the parameters of your air compressor.

 

 

THANKS TO THE ULTRASONIC COMPRESSED AIR FLOW METER:thanks to the ultrasonic compressed air flow meter

  • Control the load of air compressors (medium and peak)
  • Detect and stop compressed air leaks
  • Measure your air consumption
  • Analyze your compressed air usage
  • Evaluate energy performance
  • Achieve energy savings
  • Reduce maintenance

 


 

Why measure your compressed airflow rate

Why measure your compressed airflow rate ?

Efficient use of energy helps control costs and reduce the negative impact on the environment.
In a factory, among the utilities, compressed air represents up to 20% of the total energy budget of a factory.
The need for this gas is one of the largest electrical consumption items, but the price of this energy can be controlled.

Flow meters are used in compressed air systems to provide a measure of flow rate through air velocity.
Compressed air systems typically have high leakage rates, high start-up and shutdown times, and other problems that lead to losses and therefore waste.
Industrial air flow meter can identify areas of excessive use and better manage the overall flow of the compressed air system. 

Measuring, analyzing and communicating key plant performance indicators can then help educate personnel on efficient practices, thereby controlling costs, ensuring better equipment protection and saving money.

 

Why measure your compressed airflow rate situation FWD

 

 

Measuring principle - how to measure a compressed air flow rateMeasuring principle - how to measure a compressed air flow rate ?

Fuji Electric's compressed air flow meters consist of two ultrasonic sensors installed on each side of the meter inlet and outlet. As the liquid flows, the ultrasonic waves propagate diagonally from the upstream sensor to the downstream sensor and back in the pipe where the mass flow meter is positioned. 

 With this technique, the waves are "carried" by the fluid, in the other, they are "braked". It therefore takes a different time to pass from one sensor to the other. This difference is proportional to the velocity and therefore to the flow rate of the fluid. This time difference allows to detect the fluid flow velocity and to calculate the volumetric flow rate according to the cross section of the flow meter and the Measuring principle - how to measure a compressed air flow rate FWD screenflow velocity measurement. The number of measuring points of compressed air flow meters must be adapted to the size and use of the system. In contrast to thermal mass flow meters or vortex flow meters technologies, the FWD ultrasonic flow sensors technology does not clog and is highly resistant to oil-contaminated compressed air. It works even in the presence of water droplets (high dew point).  

The combined measurement of flow rate, velocity, temperature and pressure provides clear data on compressed air consumption and eliminates any uncertainty in the measurement.

 

Application of industrial ultrasonic mass flow meter for air flow measurement

Application of industrial ultrasonic mass flow meter for air flow measurement automotiveThese air flow sensors are resistant to industrial environments and vibrations.
These air flow devices are ideal for companies operating in an industrial environment.

  • Application of industrial ultrasonic mass flow meter for air flow measurement glasspharmaceutical
  • glass
  • automotive
  • Application of industrial ultrasonic mass flow meter for air flow measurement chemicalchemical
  • metal
  • food and beverages 

 

Advantages of the ultrasonic air flow meter :

  • Easy, quick and economical installation - No wiring work with Lithium-ion battery powered Advantages of the ultrasonic air flow meterversion (10-year life span)
     
  • Low maintenance - No filter required. High resistance to contaminated fluids.
  • Clear viewing of compressed air and nitrogen consumption - Fast real-time measurement on large rotating LCD display
  • Early detection of air leaks - Large measurement dynamic and excellent repeatability
  • Measurement data you can trust - Mass flow meter for air (Build-in pressure and temperature compensation)
  • Maximum flexibility and wide range of applications - Bidirectional flow meter ultrasonic technology with no pressure loss
  • Build to last in harsh industrial environments - Robust and waterproof design
  • Many pipe diameters available - Available from DN25 to DN200
  • Easily adapts to all industrial airflow conversion formulas - Instantaneous flow rate can be converted into Nm3/h (flow rate at 0°C and 101.3 kPa atmospheric pressure) or standard m3/h (flow rate at user defined temperature and pressure).
  • Allows bi-directional measurement of compressed air flow - The FWD ultrasonic air flow sensor can measure the volume of air in a plant as well as the volume transferred between different plants.

 

Advantages of the ultrasonic air flow meter screw-on model flange modelsAdvantages of the ultrasonic air flow meter screw-on modelAdvantages of the ultrasonic air flow meter wafer models

We are very pleased with the performance of this ultrasonic flow meter. It is easy to install and use, and it delivers measurement quickly, allowing us to identify the compressed air leakage and reduce our compressed air consumption.


 

Specifications:

Pipe diameter (mm) DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN150, DN200
Power supply24 V DC ±10% or Built-in battery type (battery life : approx.10 years at 20˚C)
Power consumption24 V DC, 1.5 W or less
Applicable fluidsAir (mainly air factory) or Nitrogen (25-80 mm diameter)
Temperature and humidity of fluid10°C to 60°C, RH 90% or less
Working pressure0 to 1 MPa (gauge pressure)
Range (actual flow rate) and accuracy DiameterFlow rate range (m3/h) Accuracy
±2.0% of flow rate±5.0% of flow rate
DN25±0.6–35±3.5–35 m3/h±0.6–3.5 m3/h
DN32±1.1–65±6.5–65 m3/h±1.1–6.5 m3/h
DN40±1.3–80±8–80 m3/h±1.3–8 m3/h
DN50±2.5–150±15–150 m3/h±2.5-15m3/h
DN65±4–240±24–240 m3/h±4–24 m3/h
DN80±5–300±30–300 m3/h±5–30 m3/h
DN100±10–500±50–500 m3/h±10–50 m3/h
DN150±24–1200±120–1200 m3/h±24–120 m3/h
DN200±40–2000±200–2000 m3/h±40–200 m3/h
Air flow rate conversion accuracy FWD 025–080 : ±2.5% or rate (at 500 kPa, 25°C, dry air)
FWD 100–200 : ±2.0% or rate (at ≥ 300 kPa)
DisplayMain display

Forward or forward/reverse mode :

  • Ø25–Ø80 mm : Instantaneous flow rate (m3/h) 5-digit (4-digit for over 2000), Pressure (kPa) 5-digit, temperature (°C) 3-digit
  • Ø100–Ø200 mm : Instantaneous flow rate (m3/h) 5-digit (4-digit for over 2000), Pressure (kPa) 5-digit, Temperature (°C) 3-digit
Sub display
  • Ø25–Ø80 mm: Instantaneous flow rate (Nm3/h) 5-digit (4-digit for over 2000), Pressure (kPa) 5-digit, temperature (°C) 3-digit
  • Ø100–Ø200 mm: Instantaneous flow rate (Nm3/h) 5-digit (4-digit for over 2000), Pressure (kPa) 4-digit, Temperature (°C) 3-digit
Output signal
(not available for battery-driven version)
Current ouput4–20 mA DC (±0.5% FS), maximum resistance load 400Ω, maximum output current 22 mA
Instantaneous flow rate, velocity, pressure, or temperature measurement
Contact output
  • 2 open drain outputs, maximum load 24 V DC, 50 mA, maximum frequency : 10 Hz, Duty 35–65%
  • Output 1: Unit pulse (forward), Output 2 : Unit pulse (reverse), Upper/lower alarm, device error
Process connection typeØ25, Ø32 mmScrewed type Ø25 mm : Rc1, Ø32 mm : Rc1-1/4
Ø40–Ø80 mmWafer type (between JIS10K flanges)
Ø100–Ø200 mmFlange type JIS10K standard
Materials of wetted parts Aluminum alloy, PPS, fluorosilicone rubber, etc.
Installation location Indoor or outdoor (IP64 equivalent)
Storage temperature -20°C to 70°C, non condensing

Specifications ultrasonic flow measurement for air and nitrogen

 


 

Ultrasonic flow measurement for air and nitrogen documentation