• No electrolyte or flow requirement, ensuring ease of use and maintenance.
• No oxygen consumption, enhancing measurement accuracy.
• Plug-and-play functionality with SMART calibration for user convenience.
• Bubble deflecting 45° sensing surface to improve measurement reliability.
• Retains calibration history and user metadata for effective tracking.

• Operating Range: 0 – 300% SAT (0 – 30 PPM), 5°– 50° C, 0 – 5 bar.
• Accuracy: Within 1% full range (%SAT or PPM).
• Response Time: T98 < 15 seconds at 37°C for both N2 to AIR and AIR to N2 transitions.
• Wetted Materials: Anodized Aluminium for sensor body and cap, EPDM O-rings, PES and Silicone Rubber sensing surface.
• Termination: Fixed cable with standard 10M length.
• Power Supply: 5.0 VDC supplied by Power Module or Transmitter.

• Easily replaced optical cap and rugged PCV coated cable with ferrules.
• Standard 12x120mm design with PG13.5 threaded sensor cap.

• Part No 138/400: FMS18 sensor with flat sensing surface.
• Part No 138/401: FMS18 sensor with 45° angled sensing surface.
• Spare Parts: Various cartridge kits available for both flat and angled sensing surfaces.

The OptaProbe™ Model W is a SMART optical dissolved oxygen sensor designed for water and wastewater applications, offering high reliability and low maintenance.