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DS 351 Electronic Pressure Switch with IO-Link Interface

The DS 351 is a sophisticated instrument designed for use in machine tools, pneumatic, and hydraulic systems, and is capable of handling aggressive media with an optional PVDF pressure port. It includes a standard IO-Link interface, efficiently transmitting process data, diagnostic reports, and status updates for easier maintenance. Users can adjust parameters either remotely or directly via its VDMA-compliant menu, operated by two buttons. The DS 351’s versatile display and customisable output signal, whether switching or analogue, provide unparalleled precision and flexibility for various measurement tasks.

DS 351 Pressure Switch Product Parameters

  • Pressure Ranges: Up to 600 bar, gauge and absolute.
  • Output Signal: IO-Link/SIO, 4-20 mA/0-10 V, PNP/NPN switchable.
  • Accuracy: ±0.5% FSO for switching, ±1% FSO for analog.
  • Electrical Connections: M12x1, 4-pin metal.
  • Process Connections: Options include stainless steel and PVDF.
  • Media Compatibility: Compatible with various media; PVDF for aggressive substances.
  • Special Features: 4-digit LED display, IO-Link interface, adjustable settings, shock/vibration resistance, IP 67 protection, EMC and Pressure Equipment Directive compliant.

Product Highlights

The DS351 Pressure Switch is a versatile device designed for a wide pressure range, from 0 … 0.4 bar up to 0 … 600 bar gauge and absolute. It utilises IO-Link technology for efficient data transfer at 38.4 kbit/sec, offering switchable output signals including PNP, NPN, 4 … 20 mA, and 0 … 10 V. The pressure switch features a 4-digit LED display for clear value indication, a rotatable and configurable display module, and parameter settings via IO-Link or a menu (VDMA-conform). Optional versions include different mechanical connections, a PVDF pressure port, and customer-specific versions. Its user-friendly features, such as the LED display and flexible parameter settings, provide easy monitoring and customisation. The DS351 Pressure Switch is a reliable solution that caters to various pressure-sensing needs in industrial applications.


  • Plant and machine engineering
  • Environmental engineering (water-sewage-recycling)

To download the latest datasheet click here: DS 351

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