Sper Scientific
870007-HDO
Inline High Temperature Dissolved Oxygen Sensor
The Inline High Temperature Dissolved Oxygen Sensor is designed to withstand steam sterilization at temperatures up to 130°C, featuring an auto-balance pressure system for reliable dissolved oxygen (DO) measurements in both liquids and gases.
Ideal for small microbial culture reactors, this sensor enables real-time monitoring of dissolved oxygen levels and is also suited for environmental monitoring, wastewater treatment, and aquaculture applications.
Measuring dissolved oxygen in water and treatment to maintain proper DO levels, are crucial functions in a variety of water treatment applications. While dissolved oxygen is necessary to support life and treatment processes, it can also be detrimental, causing oxidation that damages equipment and compromises product.
The DO concentration determines the quality of source water. Without enough DO, water turns foul and unhealthy, affecting the quality of the environment, drinking water and other products.
About Dissolved Oxygen
Dissolved oxygen (DO) measures the amount of oxygen gas present in water, an essential indicator of water health. Water bodies that support life require adequate dissolved oxygen levels. DO enters water through:
- Direct absorption from the atmosphere
- Rapid water movement from winds, waves, currents, or mechanical aeration
- Photosynthesis from aquatic plants as a natural by-product
Key Features
- High-temperature fermentation electrode, utilizing the polarographic principle
- Equipped with imported, high-quality breathable membrane heads
- Durable steel gauze electrode membrane paired with silicone rubber construction
- Heat-resistant design ensures stability and performance under high-temperature conditions
| Electrode body material: | Stainless steel |
| Permeable membrane: | Fluorine plastic, silicone, stainless steel wire mesh composite membrane. |
| Cathode: | PPlatinum wire |
| Anode: | Silver |
| Electrodes | Built-in temperature sensor: PT1000 |
| The response current in the air: | About 60nA |
| The response current in a nitrogen atmosphere: | Less than one percent response current of response in air. |
| Electrode response time: | About 60 seconds (up 95% response) |
| Electrode Response Stability: | A constant oxygen partial pressure at a constant temperature environment, response current drift less than 3% per week |
| Liquid mixing flow to the electrode response: | 3% or less (in water at room temperature) |
| Electrode Response Temperature Coefficient: | 3% (greenhouse) |
| Insert the electrode diameter: | 12 mm, 19 mm, 25 mm optional |
| Electrode insertion length: | 80, 150, 200, 250, 300 mm |
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