Dissolved oxygen analyzer is a professional instrument used to measure the dissolved oxygen content in water, widely used in environmental monitoring, water quality analysis, aquaculture, sewage treatment and other fields. Its main features revolve around measurement accuracy, ease of use, adaptability, etc., as follows:

1、 High precision measurement capability

·Sensing technologyMost sensors use polarographic or fluorescence methods. The polarographic method accurately detects oxygen concentration through electrode reactions, while the fluorescence method utilizes the interaction between fluorescent substances and oxygen to reduce chemical interference and achieve more stable measurements.

·Low detection limit: detectable as low as0.01mg/LDissolved oxygen meets the measurement requirements of high-purity water (such as laboratory water) or anaerobic environments.

·Temperature compensation functionThe dissolved oxygen content is closely related to water temperature. The instrument is equipped with a temperature sensor that can automatically correct the impact of temperature on measurement results, ensuring accurate data at different water temperatures.

2、 Convenience of operation

·quick responseAfter the sensor comes into contact with the water sample, it can display stable readings within a few seconds to tens of seconds, suitable for rapid on-site detection.

·Visual displayEquipped with high-definition technologyLCDorOLEDScreen, capable of displaying dissolved oxygen concentration simultaneously（mg/L）Saturation degree（%）Some models support real-time display of data curves for parameters such as water temperature.

·Simple calibrationProvide manual or automatic calibration function, users can quickly complete calibration through standard solution (such as oxygen in air), reducing operational difficulty.

3、 Adapt to complex environments

·waterproof designSensors and hosts are commonly usedIP67/IP68Grade waterproof, can be directly immersed in water for measurement, suitable for wet environments such as fields, ponds, sewage tanks, etc.

·anti-interference capabilityIt has certain anti-interference ability against common substances such as chloride ions and hydrogen sulfide in water, and some models can also resist the influence of turbidity and color, ensuring measurement stability under harsh water quality.

·Wide rangeThe measurement range usually covers0-20mg/L(or0-200%Saturation can adapt to different scenarios from oxygen poor water bodies (such as deep lake water) to oxygen rich water bodies (such as aeration tanks).

4、 Data Management and Scalability

·Data storage and exportBuilt in memory can store thousands of sets of measurement data, supporting the use ofUSBExport to computer via Bluetooth and other methods for easy data recording and analysis.

·Multi-functional integrationSome models can measure simultaneouslypHOther water quality parameters such as conductivity can be used for multiple purposes, reducing equipment costs.

·Portable and fixed options available：

oPortable: Small in size, lightweight, equipped with rechargeable batteries, suitable for field inspections and temporary sampling and testing.

oFixed type: can be installed in water bodies for a long time (such as aquaculture ponds and sewage treatment pipelines), with real-time monitoring and linked control systems (such as automatic activation of oxygenation pumps).

5、 Durability and maintainability

·Long life sensorFluorescent sensors do not require frequent replacement of membranes and electrolytes, and have a lifespan of up to1-2Year; The polarographic sensor extends the maintenance cycle by optimizing the membrane material.

·Easy to maintain designThe sensor structure is simple, and users can replace the diaphragm, electrolyte (polarography) or clean the fluorescent cap (fluorescence method) by themselves, reducing the need for professional maintenance.

In summary, the core feature of a dissolved oxygen analyzer isHigh precision, easy to operate, anti-interference, and strong adaptabilityIt is a key equipment in the field of water quality analysis that can meet the accuracy and efficiency requirements of dissolved oxygen monitoring in different scenarios.