Walchem Controller & Pyxis Hydrogen Peroxide Sensor, One Sensor Measures H202, pH, ORP, Conductivity & Temperature

Key Advantages of the ST-766SS Design (Replaces the Grundfos DID H202)

• Oxi-Logic Technology: By eliminating traditional membranes and gel refills, you avoid the most common failure points in electrochemical sensing. This “dry” or solid-state approach reduces the chance of internal leaks.

• Rapid Startup: One of the biggest pain points with traditional electrodes is the “soak time” or polarization period, which can take hours. This design is engineered to stabilize much faster, reducing downtime during commissioning or maintenance.

• Mechanical Durability:
  • Flat Front-End: Unlike “bulb” style sensors, the flat surface uses the flow of the process fluid to help self-clean, making it ideal for applications with high suspended solids or “gunk” that usually coats sensors.
  • Quick Engage Pin: This is a “fail-safe” feature. It prevents the internal wiring from twisting or snapping when you swap the electrode, and it ensures a watertight seal without relying on perfect manual threading. 

FR-300-PLUS Self-Brushing Flow Reservoir for Pyxis Inline Sensors ST-766SS

Maintenance Comparison