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Sensors for Liquids and Gases

The large range of fluid sensors provides you with high-performance pressure, temperature, flow and fill-level sensors for use in systems and machines. The sensors are designed on the basis of a modular platform in order to match them to customer-specific requirements.

Process Monitoring for Best Possible Transparency

Continuous monitoring and analysis of production processes are required in order to assure top product quality. Fluid sensors acquire all relevant process values in real-time and detect even the smallest deviations, so that you can respond quickly to changing conditions. Make your processes transparent and use this valuable information in order to optimize sequences and conserve resources. This results in increased efficiency and productivity, and secures your competitive advantage.

The graphic shows examples of process monitoring tasks which are executed by sensors – for reliable and stable processes.




Efficiently Reducing Costs with a Combination of Two Functions

weFlux² Pressure Sensors

Pressure Sensor weFlux²
  • For liquids and gases
  • Relative pressure measuring range from -1 to +400 bar
  • Temperature measuring range from -40 to +125° C
  • Pressure measuring accuracy: ±0.5%
  • Temperature measuring accuracy: ±1° C

A single sensor for pressure and temperature

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weFlux² Flow Sensors

Flow Sensor weFlux²
  • Designed for applications with water
  • Flow velocity measuring range of up to 400 cm/s
  • Temperature measuring range from -25 to +150° C
  • Flow velocity measuring accuracy: ±2%
  • Temperature measuring accuracy: ±1° C

A single sensor for flow and temperature

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weFlux² Temperature Sensors

  • For liquids and gases
  • Measuring range with IO-Link: -50 to +150° C
  • Measuring range with PT100/PT1000: -50 to +200° C
  • Measuring accuracy: ±0.5° C
  • Response time T90: < 2 seconds

Available with IO-Link or PT100/PT1000 resistor

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LevelTech Fill-Level Sensors

Fill-Level Sensors LevelTech
  • For liquid, pasty, sticky and solid media
  • Dielectric constant: > 1.5
  • Temperature of medium: -40 to +115° C
  • Response time: 0.04 seconds
  • 2 switching Outputs

A single sensor which differentiates between liquids as well as states

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weFlux² and LevelTech sensors are resistant to shock and vibration, are maintenance and wear-free, and they’re capable of withstanding high pressure levels. The top-quality, laser welded V4A stainless steel housing in hygienic design with IP68/IP69K protection is resistant to aggressive chemicals and cleaning agents.


Smart Communication with IO-Link Sensors

Fluid sensors are already plunging into digital processes today. And they use the most up-to-date communication standard via IO-Link to this end. IO-Link sensors communicate with all common control systems via the manufacturer-independent interface and can thus be easily integrated into existing networks. You profit in many ways:

  • Simplified operation
  • Faster initial start-up
  • Increased system availability
  • Reduced maintenance costs




Process monitoring with sensors for liquids and gases

Simplified Operation

wenglor’s free wTeach2 software permits simple setup of fluid sensors with IO-Link. The switching points can also be adjusted in diagrams with just a single click in a clear-cut, user-friendly manner.

Faster Initial Start-Up

Set up once – duplicate as often as required: the fluid sensors’ configuration can be stored to the controller and transferred to other applications by simply clicking a button, regardless of your current Location.

Increased System Availability

Fluid sensors with IO-Link generate and transmit additional diagnostics and status data for condition monitoring. These data can be analyzed by wTeach2 software in order to make information available for requirements-oriented maintenance, and to avoid downtime.

Plug & Play with Data Storage

If a sensor is replaced, stored settings are transferred automatically to the new sensor making replacement possible without initial programming.