Understanding the Importance of Oxygen Measurement
Oxygen sensors and transmitters play a crucial role in various industries by providing accurate and reliable measurements of dissolved oxygen. These measurements are essential for quality assurance and process control in applications such as aeration control, fermentation, and inertization. Endress+Hauser's TankVision product line offers instruments designed for high accuracy oxygen analysis across all measurement ranges, from oxygen traces to high concentrations, and is suitable for all conditions, including hazardous areas and hygienic processes.
Types of Oxygen Sensors and Transmitters
Endress+Hauser's TankVision product range includes both amperometric and optical oxygen sensors. Amperometric sensors are known for their accurate linear measurement capabilities across various oxygen concentrations, while optical sensors provide fast and stable measured values with minimal maintenance requirements. The choice between these sensor types depends on factors such as industry requirements, maintenance preferences, and measurement accuracy needs.
Working Principles of Oxygen Sensors
Amperometric oxygen sensors utilize a working electrode and a counter electrode in an electrolytic liquid chamber, allowing oxygen to permeate through a membrane and be converted to a current. On the other hand, optical oxygen sensors use the fluorescence quenching method, where oxygen molecules attenuate the fluorescence light emitted by marker molecules in the sensor. Both types of sensors offer accurate and reliable oxygen measurements for diverse applications.
Benefits of TankVision Oxygen Sensors and Transmitters
Endress+Hauser's TankVision product line provides oxygen sensors and transmitters that cater to various requirements, from basic functionality to multichannel and multiparameter measurements. The oxygen transmitters process signals from each sensor and display the data in preferred formats, such as oxygen partial pressure, oxygen concentration, or oxygen percentage saturation. With options for fixed installation, immersion, flow, and retractable assemblies, users can choose the most suitable configuration for their specific application needs.
Maintenance and Compensation Strategies
To ensure consistent and accurate measurements over time, Endress+Hauser offers compensation solutions for aging effects in oxygen sensors. Amperometric sensors come with additional reference electrodes, while optical sensors feature a reference LED to counteract aging effects. These features help maintain the performance and reliability of the sensors, delivering precise measurements throughout their operational life.