High Temperature Dissolved Oxygen Sensor, Stainless Steel

Inline High-Temperature Dissolved Oxygen Sensor: Precision and Durability for Demanding Applications

The Inline High Temperature Dissolved Oxygen (DO) Sensor is engineered for exceptional performance in challenging environments. Designed to withstand rigorous steam sterilization processes at temperatures up to 130°C, this sensor ensures consistent and reliable DO measurements in both liquids and gases. Its integrated auto-balance pressure system further enhances accuracy by compensating for pressure fluctuations, making it ideal for processes requiring unwavering precision.

Crucial for Diverse Industries

This robust sensor is an indispensable tool across various critical applications:

• Microbial Culture Reactors: Essential for small microbial culture reactors, it provides real-time dissolved oxygen monitoring, enabling precise control over fermentation processes to optimize yield and product quality.
• Environmental Monitoring: Supports accurate assessment of water quality in natural environments, helping to identify and mitigate pollution.
• Wastewater Treatment: Key to efficient aeration control in activated sludge processes, ensuring optimal microbial activity for pollutant breakdown and compliance with discharge regulations.
• Aquaculture: Vital for maintaining healthy aquatic ecosystems by ensuring appropriate oxygen levels, which directly impacts fish health, growth, and survival rates.
• Pharmaceutical and Bioreactor Applications: Its steam sterilization compatibility makes it perfect for aseptic processes where maintaining sterility and precise DO levels is paramount.

Understanding the Importance of Dissolved Oxygen

Dissolved oxygen (DO) measures the amount of oxygen gas present in water, serving as a fundamental indicator of water quality and ecosystem health. Maintaining proper DO levels is critical across industrial processes and environmental management:

• Supporting Life and Processes: Adequate DO is essential for the survival of aquatic organisms and the efficiency of biological treatment processes.
• Preventing Oxidation and Degradation: Conversely, uncontrolled or excessively high DO levels can lead to detrimental oxidation, causing corrosion in equipment, degrading product quality, and impacting process stability.
• Ensuring Water Quality: Low DO concentrations can result in anaerobic conditions, leading to foul odors, unhealthy environments, and compromised quality for drinking water and other end products.

DO naturally enters water through:

• Direct absorption from the atmosphere.
• Turbulence created by winds, waves, currents, or mechanical aeration.
• Photosynthesis from aquatic plants and algae as a natural by-product.

Key Features for Unrivaled Performance

• High-Temperature Fermentation Electrode: Utilizes the highly stable and accurate polarographic principle for precise DO measurement, even under extreme thermal conditions.
• Premium Membrane Technology: Equipped with imported, high-quality breathable membrane heads, ensuring long-term stability, rapid response, and minimal drift.
• Rugged Construction: Features a durable steel gauze electrode membrane paired with high-grade silicone rubber construction, providing superior protection and longevity.
• Optimized Heat Resistance: Engineered for consistent performance and exceptional stability when exposed to high temperatures, guaranteeing reliable data in demanding steam sterilization cycles.
• Integrated Temperature Compensation: Built-in PT1000 temperature sensor allows for automatic temperature compensation, ensuring highly accurate DO readings across varying temperatures.

Technical Specifications

• Electrode Body Material: Stainless steel
• Permeable Membrane: Fluorine plastic, silicone, stainless steel wire mesh composite membrane
• Cathode: Platinum wire
• Anode: Silver
• Built-in Temperature Sensor: PT1000
• Response Current in Air: Approximately 60nA
• Response Current in Nitrogen Atmosphere: Less than 1% of response in air
• Electrode Response Time: Approximately 60 seconds (up to 95% response)
• Electrode Response Stability: At constant oxygen partial pressure and temperature, response current drift less than 3% per week
• Liquid Mixing Flow to Electrode Response: 3% or less (in water at room temperature)
• Electrode Response Temperature Coefficient: 3% (greenhouse conditions)
• Insert Electrode Diameter Options: 12 mm, 19 mm, 25 mm
• Electrode Insertion Length Options: 80 mm, 150 mm, 200 mm, 250 mm, 300 mm