YEX-S2-ORP-S Online ORP Sensor

Stable and Precise Control of Oxidation-Reduction Potential, Solving Industrial Process ORP Measurement Instability Issues

In industrial production, short ORP electrode life, susceptibility to interference, and large reading drift often lead to process control deviations and high maintenance costs. The Yexsensor YEX-S2-ORP-S Online ORP Sensor relies on patented slow-release reference electrode and dual high-impedance differential amplification technology to provide long-term stable, high-precision, and anti-interference real-time ORP monitoring solutions for complex industrial environments.

Core Advantages

• Patented ORP Electrode: Slow-release reference solution extends service life by more than 2 times

• Dual High-Impedance Differential Amplifier: Strong anti-interference capability and fast response

• RS-485 Modbus/RTU + 4-20mA Dual Output: Easy integration with PLC/DCS systems

YEX-S2-ORP-S Online ORP Sensor Product Overview

The Yexsensor YEX-S2-ORP-S Online ORP Sensor is designed for environmental water quality monitoring, chemical process control, and industrial production. It accurately measures the oxidation-reduction potential (ORP) of solutions, providing critical data support for process optimization, reaction progress monitoring, and discharge compliance.

The sensor adopts a patented ORP electrode design. The internal reference solution seeps out extremely slowly through a micro-porous salt bridge under ≥100KPa pressure, enabling sustained positive seepage for more than 20 months. This significantly improves electrode stability and service life. It is also equipped with a dual high-impedance differential amplification circuit to effectively suppress electromagnetic interference in industrial sites and achieve fast, reliable signal output.

YEX-S2-ORP-S Online ORP Sensor Key Advantages

1. Patented Electrode Technology, Ultra-Long Stable Life

Adopts patented ORP electrode with extremely low reference solution seepage rate. Under no less than 1Bar pressure, it supports sustained positive seepage for more than 20 months. Compared with conventional industrial electrodes, service life is more than doubled, effectively reducing replacement frequency and lowering long-term operation and maintenance costs.

2. Excellent Anti-Interference Performance and Fast Response

Built-in dual high-impedance differential amplifier significantly enhances resistance to electromagnetic interference. It maintains stable signals even in strong interference industrial environments. Fast response speed meets real-time process control requirements.

3. Flexible Integration and Convenient Installation

Supports RS-485 (Modbus/RTU protocol) and 4-20mA current output. Can be directly connected to PLC, DCS, industrial control computers, paperless recorders, or touch screens. Uses 3/4 NPT thread for easy submersible installation, supporting pipeline and tank installation.

4. Robust Protection and Industrial Adaptability

IP68 protection rating with wetted materials combining ABS and 316L stainless steel for excellent corrosion resistance. Can operate stably in 0～65℃ temperature range and<0.1MPa pressure, suitable for most industrial application environments.

YEX-S2-ORP-S Online ORP Sensor Technical Specifications

YEX-S2-ORP-S Online ORP Sensor Application Scenarios

1. Wastewater Treatment and Environmental Monitoring: Online ORP monitoring in aeration tanks, equalization tanks, and discharge outlets of wastewater treatment plants to optimize biochemical treatment processes.

2. Chemical and Pharmaceutical Process Control: Monitoring of acid-base neutralization and oxidation-reduction reactions to ensure stable reaction conditions.

3. Industrial Production Wastewater Treatment: ORP monitoring in electroplating, printing & dyeing, chemical, papermaking and other industries to ensure process stability and compliant discharge.

4. Environmental Water Monitoring: ORP monitoring in rivers, lakes, surface water, and groundwater to assess water self-purification capacity and pollution status.

5. Circulating Cooling Water and Boiler Water Systems: ORP control in industrial cooling circulating water to prevent equipment corrosion and microbial growth.

FAQ

Q1: How long is the electrode life of the YEX-S2-ORP-S sensor?

A1: The patented reference electrode supports sustained positive seepage for more than 20 months under ≥100KPa pressure. Compared with conventional industrial electrodes, service life is approximately doubled, significantly reducing replacement frequency.

Q2: Does the sensor support Modbus protocol?

A2: Yes. It supports RS-485 Modbus/RTU protocol and also provides 4-20mA output for convenient integration with various industrial control systems.

Q3: What angle requirements are there for installation?

A3: The sensor must not be installed upside down or horizontally. It must maintain a tilt angle of at least 15 degrees to ensure measurement accuracy.

Q4: How to perform ORP calibration?

A4: Use single-point calibration. Place the sensor in standard solution (86mV or 256mV or -40mV), wait for stable reading, then perform calibration. Please refer to the product manual for detailed steps.

Q5: Will external electromagnetic interference affect measurement?

A5: The sensor is equipped with a dual high-impedance differential amplifier, providing extremely strong anti-interference capability. It can operate stably in complex industrial electromagnetic environments.

Q6: What should be noted for daily maintenance?

A6: Rinse the electrode with distilled water after measurement and blot dry. Store in 3.5mol/L potassium chloride solution when not in use. Regularly check that wiring terminals are dry and avoid long-term immersion in pure water or protein solutions.

Q7: Can the protection rating support long-term submersion?

A7: IP68 protection rating supports long-term submersible installation, suitable for pools, pipelines, and open water bodies.

Q8: Does it support cable length customization and other special requirements?

A8: Yes. Cable lengths longer than 5 meters and other technical parameter adjustments are supported. Please contact the YEXSensor technical team to discuss specific application needs.

Summary

The Yexsensor YEX-S2-ORP-S Online ORP Sensor provides a stable and reliable oxidation-reduction potential measurement tool for industrial process control and water quality monitoring through its patented slow-release electrode technology, strong anti-interference circuit design, and flexible signal output methods. It helps engineering technicians accurately grasp reaction progress, optimize process parameters, reduce operation and maintenance costs, and achieve both production and environmental protection requirements.

Need ORP standard solution preparation guidance, on-site installation solutions, or customized selection support? Feel free to contact the YEXSensor professional team at any time. We will provide you with comprehensive technical services and solutions.

YEXSensor — Focused on industrial online water quality monitoring, empowering intelligent process control.