Foxboro 871EC Electrodeless and Flowthrough Conductivity Sensor

871EC Conductivity Sensor

The Foxboro 871EC is an electrodeless (toroidal) conductivity sensor built for reliable, low-maintenance measurement across a wide range of process fluids. Paired with Foxboro electrochemical transmitters—such as 875EC, 876EC, 873EC, or 870ITEC—it delivers accurate conductivity readings without exposing electrodes to process fluids. This design resists fouling and eliminates electrode degradation over years of service.

Ideal for:

• Harsh Environments
• Chemical
• Clean-in-Place
• Ultrapure Water
• Semiconductor Processes
• Power
• Pulp and Paper
• Mining
• Wastewater
• Food and Beverage
• Pharmaceutical

Features:

• Non-contact toroidal measurement
• Corrosion resistant
• Built-in RTD or thermistor
• Active temperature compensation
• Body made of PEEK
• Seal free design
• low range of 50 µS/cm
• Multiple methods of mounting
• Safe sensor replacement
• Compatible with:
  • 875EC
  • 876EC
  • 873EC
  • 870ITEC
• Low maintenance

Document Downloads:

• 871EC-Data Sheet
• 871EC-Instruction