SUTO S401 Thermal Mass Flow Meter

compressed air Thermal Mass flow meter, as the S401, is needed in almost any compressed air system. It helps you to monitor your compressed air system and in the end it helps you to optimize your system and to save costs.
The Suto S401 compressed air flow meter is easy to use, affordable, and offers a wide measurement range. This makes it easy for you to choose the right flow meter, the S401 which fits your needs. The S401 is a thermal mass flow meter, based on its measurement principle its not required to compensate the compressed air pressure and temperature, so you do not need any additional measurement installations to measure the flow and the consumption.
Due to the thermal mass flow, the flow meter is also well suited to be used in any other gas as Nitrogen or many other technical gases. The S401 sensor technology offers you a high resolution and a high sampling rate, resulting in a very fast and precise measurement. The flow meter is able to save two calibration curves; due to this, the sensor can be used in two different gases without any loss of accuracy.
The optional color display is designed to show all measured values like actual flow and total consumption. At the same time, the display can be used to manage the sensor settings like pipe diameter, gas type, or output settings.
The S401 flow meter offers two different signal output options. It cant be equipped with an isolated analog and pulse output to read out the compressed air flow and the total compressed air consumption. Alternatively, a MODBUS RTU interface can be used to access all measured values via the digital interface.
Since the flow meter can be easily installed through a standard ball valve, it can be easily removed for calibration without shutting down your compressed air system.

According to your needs, various settings such as gas type, flow unit, reference standards can be set ex-factory. If needed to change the settings on-site, you can use Suto free S4C-FS mobile phone application for android phones. This enables you to change the settings wirelessly on-site, within the touch of your smartphone. Managing your compressed air was never easier.

Of course, if there are any special requests, as custom flow ranges or different gas types, feel free to contact us.

This all makes the S401 compressed air flow meter the best-suited sensor for your application.

  • Thermal mass flow, independent of pressure and temperature changes
  • Measures standard flow, mass flow and consumption
  • Installation under pressure through 1/2” ball valve
  • Sensor can be calibrated in 2 different gases
  • Selectable gas type (Some gases require real gas calibration!)
  • With the integrated display users can see the actual flow and the total consumption
  • IP65 casing provides robust protection in rough industrial environment
  • Isolated mA and pulse output signals or Modbus/RTU interface
  • Very fast response time, high accuracy and wide measuring range
  • Tube diameters of DN25 to DN500
  • 2 installation types: center installation and 100 mm insertion depth installation for bigger pipes (> DN250)

Datasheet: SUTO S401 Thermal Mass Flow Meter datasheet
Manual: SUTO S401 Thermal Mass Flow Meter manual

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