Key specifications
- Fluid
- Compressed air and other gases
- Accuracy
- 1,5% (Opt. 1%) - Tam Doluluk 0,3%
- Repeatability
- 0.25%
- Under Normal Conditions
- -30 °C ... +140 °C / relative humidity < 90%, non-condensing
Selected size:
Product Description
S-401 features: • Displays flow and total consumption values for compressed air and other gases. • IP65 housing provides robust protection in industrial areas even in poor environmental conditions. • Fast response time and high measurement accuracy. • Isolated 4..20 mA and pulse output signals or Modbus RTU protocol selectable. • Selectable gas type (some gases require real-gas calibration!). • Wireless sensor settings can be made via mobile phones and tablets. • Sensor can be calibrated for 2 different gases. • Connection for pipe diameters from 1/2” to 12”, optionally larger diameter connection. • Optional colour display showing volumetric flow and total consumption directly on the sensor. (Please contact us for the ATEX-certified model designed for use in explosive areas.) S-421 features: • Displays flow and total consumption values for compressed air or gas. • IP65 housing provides robust protection in industrial areas even in poor environmental conditions. • Fast response time • 1/2'' to 3'' stainless pipe diameter size • High accuracy and wide measuring range • Isolated 4..20 mA and pulse output signals or Modbus RTU protocol • In-line type flow sensor for high accuracy in small-diameter pipes • Particularly suitable for measuring process gases such as N2, Ar, O2, CO2, etc. • Optional colour display showing volumetric flow and total consumption directly on the sensor • Modbus interface (optional) • Two-gas calibration (optional) Please contact us for detailed technical data or review the relevant documents below. Applications: The S-401 and S-421 thermal mass flow meters are precision devices that can measure mass flow directly, independent of pressure and temperature. They offer ideal solutions for monitoring energy consumption and detecting leaks, especially in compressed air systems and processes using industrial gases such as nitrogen, argon and carbon dioxide. They are widely used in the automotive, electronics, food, chemical and pharmaceutical sectors, both on production lines and in energy efficiency projects. With their compact construction and easy installation, in-plant integration is quick, and their high accuracy increases process reliability.
Technical Specifications
| Fluid | Compressed air and other gases |
|---|---|
| Accuracy | 1,5% (Opt. 1%) - Tam Doluluk 0,3% |
| Repeatability | 0.25% |
| Under Normal Conditions | -30 °C ... +140 °C / relative humidity < 90%, non-condensing |
| Transport Temperature | -30... +70°C |
| Operating Temperature | -30 °C ... +140 °C; fluid temperature -30 °C ... +70 °C; body -10 °C ... +50 °C; shielded housing |
| Operating Pressure | S-401 0...5 MPa - S-421 0...1,6 MPa (Opt. 4,0 MPa) |
| Output | 4-20mA - Pulse - RS485 Modbus |
| Supply Voltage | 15 ... 30 VDC / 200 mA |
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