Endress+Hauser COS41-4F | Oxymax W COS41 DO Sensor, G1", 15m Cable

Endress+Hauser COS41-4F | Oxymax W COS41 DO Sensor, G1", 15m Cable

Endress+Hauser COS41-4F amperometric dissolved oxygen sensor. Measures 0.05–20 mg/L, G1" POM body, integrated NTC, 15m fixed cable for wastewater aeration control.

Product Overview

The Endress+Hauser COS41-4F​ is an amperometric dissolved oxygen sensor​ from the Oxymax W COS41 series. Designed for continuous monitoring in water and wastewater applications, it features a robust POM body, G1" threaded process connection, and a 15-meter fixed cable. This sensor utilizes a 2-electrode system with a replaceable membrane cap​ and includes an integrated NTC temperature sensor​ for automatic compensation. The longer cable makes it suitable for deep tanks or distant junction boxes.

Technical Specifications (Measurement & Electrical)

Technical Specifications (Mechanical & Process)

Key Features

• Low Maintenance Design:​ The replaceable membrane cap​ and stable electrode system ensure long service intervals and reduced lifecycle costs.

• Simple Air Calibration:​ Supports easy one-point calibration in air​ (saturation calibration), eliminating the need for complex chemical zero solutions.

• Robust Construction:​ The POM sensor body​ offers excellent chemical resistance against water, wastewater, and mild chemical environments.

• Extended Cable Option:​ The 15-meter fixed cable​ accommodates installations in deep aeration basins or where the transmitter is remotely located.

Applications

• Wastewater Aeration Control:​ Optimizing blower energy consumption by monitoring dissolved oxygen levels in activated sludge basins.

• Surface Water Monitoring:​ Measuring oxygen content in rivers, lakes, and reservoirs for environmental compliance.

• Aquaculture & Fish Farming:​ Maintaining optimal oxygen levels in fish ponds and hatchery tanks.

• Industrial Process Water:​ Monitoring dissolved oxygen in cooling water systems and boiler feedwater.