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VisiPro DO (Ex)

VisiPro DO

The VisiPro DO Ex is the only optical dissolved oxygen (DO) sensor for use in explosive environment.

VisiPro DO optical technology improves the measuring performance and simplifies maintenance. Improvements compared to conventional electrochemical (amperometric) sensors include flow independence, rapid start-up with no polarization time, and simplified maintenance. With their integrated transmitter, VisiPro DO sensors enable direct communication to the process control system via 2 wire 4-20 mA standard signal or digital HART. All relevant sensor data including calibration and diagnostic information are stored in the sensor head, simplifying calibration and maintenance. Additional wireless communication directly from the sensor to your computer simplify laboratory calibration, configuration, and maintenance.


Typical applications

  • Reliable and robust optical measurement in explosive environment
  • No fragile membrane - with a solid sensor cap
  • No polarization time required
  • Instantly stable values, low drift, quick response
  • Electrolyte-free, so no leakage
  • Convenient pre-calibration in the laboratory, because data is stored in the sensor head
  • Easy installation via 2 wire 4-20mA connection

  • Direct analog or digital HART communication to the process control system via 4-20 mA signal with integrated micro transmitter 

  • ATEX environment
  • Biotechnical fermentation
  • Chemical pharmaceutical application
  • Chemical industry