Analog ORP electrode suitable for domestic sewage

Daruifuno ASR300 ORP Sensor: Reliable Redox Potential Measurement for Water SystemsThe Daruifuno ASR300 ORP sensor is a high-performance instrument specifically engineered for accurate and reliable measurement of Oxidation-Reduction Potential (ORP) across diverse industrial and environmental applications. Housed in a durable ABS plastic body, this sensor is an ideal choice for critical tasks in wastewater treatment, industrial production, environmental monitoring, and managing water quality in areas such as domestic sewage, agricultural sewage, industrial wastewater, and aquaculture.

Robust Design and Precision Electrodes

The ASR300 is designed for long-term stability in complex media. It utilizes a highly responsive platinum flat measuring electrode, offering a wide and precise measurement range of ±1500mV. The robust reference system features an Ag/AgCl reference electrode protected by a double salt bridge and a KCl gel reference system. This design minimizes electrolyte depletion and resists fouling, ensuring consistent performance in dirty or chemically challenging solutions.The sensor's key electrical specifications confirm high quality: the Zero Position (E_0) is ±20mV at 25℃, and the Slope% is greater than 95% at 25℃, guaranteeing responsive and accurate redox measurements.

Operating Parameters and Automated Cleaning

Built to operate reliably under typical water process conditions, the ASR300 handles temperatures from 0℃ to 60℃ at 4Bar and up to 80℃ at 2Bar. Optimal performance is achieved with a sample flow rate maintained between 0.001m/s and 0.5m/s. The sensor supports customization for various temperature compensation units, including PT1000, PT100, and NTC10K.

A crucial feature for high-maintenance applications is the sensor's compatibility with an optional cleaning connector. When connected to a Daruifuno PH/ORP controller, the user can configure an automated self-cleaning cycle, precisely controlling the cleaning time interval and cleaning frequency. This feature is essential for preventing electrode coating, which can cause measurement drift, and significantly reduces the need for manual maintenance in demanding environments.

• Compact all-in-one design
• Large capacity reference for extended service life
• Optional cleaning connector for underwater maintenance
• Available with PTFE protective cover and self-cleaning interface
• Self-cleaning function enhances stability, accuracy, and reliability while reducing maintenance costs

Flexible Installation and Customization

The ASR300 is engineered for versatile deployment across various plant configurations. The sensor has a diameter of 35 mm, a total length (including foot guard) of 200 mm, and a 100mm insertion depth. It features 1-inch NPT threads at both ends for secure, easy mounting.

A wide array of installation methods is supported:
Sidewall Mounting: Best suited for integration into large tanks and vessels.
Top Flange Mounting: Perfect for measurements within sealed reactors.
Pipe/Flow Cell Mounting: Allows for precise in-line continuous measurement and is compatible with the flow cell installation method.
Submersible Mounting: Ideal for continuous monitoring in open tanks and channels.
Manual Retractable Holder: This option enables maintenance, cleaning, and calibration to be performed without interrupting the process flow.

The sensor is supplied with a standard 5-meter integrated cable, with options for other lengths to meet specific installation needs. The Daruifuno ASR300 offers a durable and flexible solution for reliable ORP control in Water Treatment Plants and beyond.

The ASR300 ORP sensor is a vital tool for precise ORP control and monitoring in several critical areas, including:

• Environmental Monitoring: Ensuring regulatory compliance in environmental discharge.
• Domestic Sewage and Agricultural Sewage: Monitoring and controlling treatment processes.
• Industrial Wastewater and Waste Water Treatment Plants: Essential for effluent neutralization and process optimization.
• Aquaculture: Maintaining optimal water quality for aquatic life.
• Industrial Production: Providing crucial measurement data for various manufacturing processes requiring pH control.

This combination of advanced technology, rugged design, and installation versatility positions the Daruifuno ASR300 as a premium choice for industrial and environmental ORP monitoring.