Yexsensor YEX-iPH-306 Industrial Online pH Sensor

As a professional water quality sensor and industrial measurement solution provider, Yexsensor has launched the YEX-iPH-306 industrial online pH sensor specially designed for harsh industrial environments. It adopts the classic and reliable glass electrode method, combined with modern digital output technology, to achieve precise, real-time, and maintenance-free online pH monitoring. Whether in discharge control of sewage treatment plants, precise proportioning of chemical reactions, or ecological balance maintenance in aquaculture, YEX-iPH-306 can provide you with stable and reliable data support, helping enterprises optimize production processes, reduce operating costs, and ensure environmental compliance.

Yexsensor YEX-iPH-306 Industrial Online pH Sensor Product Overview

YEX-iPH-306 is a highly integrated industrial-grade online pH sensor designed for continuous online monitoring. It perfectly integrates the glass electrode measurement principle with intelligent digital circuits, supports RS-485 Modbus/RTU protocol, and can be directly connected to PLC, DCS, SCADA systems or industrial IoT platforms to achieve remote data acquisition and cloud monitoring. The POM housing material gives it excellent corrosion resistance, allowing it to work stably for a long time even in acid, alkali and salt solutions. The IP68 protection level ensures that the sensor can be completely immersed in liquid, fearless of humid, dusty or high-pressure environments.

The product strictly follows industrial standard design, with fast response speed (T90<30s) and minimum detection limit as low as 0.1, meeting high-precision process control requirements. Automatic temperature compensation function (built-in PT1000) effectively eliminates the influence of temperature fluctuations on measurement, ensuring that the accuracy is always maintained within ±0.1pH within the 0～50℃ operating range. Low power consumption design (0.1W@12V) further reduces system energy consumption, suitable for long-term unattended online monitoring scenarios.

Core Advantages

• High precision and fast response: Glass electrode method combined with precision circuits achieves 0.01 resolution and ±0.1pH accuracy. T90 response time is less than 30 seconds, allowing you to capture pH fluctuations at the first time, adjust process parameters in time, and avoid production accidents or unqualified products.

• Rugged and durable design: POM housing is resistant to acid and alkali corrosion, IP68 protection level supports long-term submersible installation. Storage temperature -5～65℃, working pressure ≤0.2MPa, suitable for most industrial site environments.

• Intelligent digital output: RS-485 Modbus/RTU protocol supports multi-device networking, long transmission distance and strong anti-interference. It can seamlessly connect with existing automation systems and reduce integration costs.

• Convenient maintenance: Two-point calibration method is simple and efficient, no complicated equipment required. Cable length is standard 5 meters and supports customization, installation is flexible. Automatic temperature compensation reduces manual intervention and overall reduces operation and maintenance costs.

• Solution-oriented: YEX-iPH-306 is not only a sensor, but also a complete solution for industrial pH monitoring. It helps enterprises achieve closed-loop control, improve product quality, reduce chemical waste, and comply with national environmental protection standards.

Working Principle

YEX-iPH-306 adopts the mature glass electrode method measurement principle. The glass electrode is sensitive to hydrogen ions. When immersed in the solution to be measured, it generates a potential difference proportional to the pH value of the solution. The built-in reference electrode provides a stable reference potential, which is converted into a digital signal through a high-impedance amplification circuit. The PT1000 temperature sensor collects the medium temperature in real time and automatically compensates for the influence of temperature on the electrode potential, ensuring accurate and reliable measurement results. The RS-485 interface outputs the processed pH value and temperature value in Modbus/RTU protocol, which is convenient for the host computer to read.

Yexsensor YEX-iPH-306 Industrial Online pH Sensor Technical Specifications

Yexsensor YEX-iPH-306 Industrial Online pH Sensor Application Scenarios

YEX-iPH-306 is widely used in industrial and environmental protection fields that require precise pH control, providing users with efficient solutions:

• Sewage Treatment and Environmental Monitoring: Real-time monitoring of inlet and outlet water pH values to ensure that emissions comply with national standards. IP68 protection and corrosion-resistant POM housing adapt to complex sewage environments, reduce maintenance frequency, and help sewage treatment plants achieve automated compliant discharge.

• Chemical Production Process Control: Precisely monitor pH changes in reaction kettles and batching tanks to achieve closed-loop dosing control. Fast response characteristics prevent reaction deviation, ensure stable product quality, and reduce raw material waste.

• Aquaculture and Agricultural Irrigation: Maintain the suitable pH range of 7.0-8.5 in aquaculture water bodies to prevent fish and shrimp stress or death. Low power consumption and digital output facilitate remote monitoring and improve aquaculture survival rate and yield.

• Industrial Circulating Water and Cooling Systems: Monitor circulating water pH to prevent pipeline scaling or corrosion. Combined with Modbus protocol to access the central control system, achieving unattended intelligent management.

• Food & Beverage and Pharmaceutical Industries: Strictly control the pH of production water or intermediate products to ensure food safety and process compliance. Glass electrode method provides highly reliable data and supports GMP verification requirements.

• Other Scenarios: In papermaking, printing and dyeing, power desulfurization and other fields, online pH monitoring can be achieved through YEX-iPH-306, helping green production and energy saving and emission reduction.

No matter how complex your scenario is, YEX-iPH-306 can be quickly deployed and operate stably, bringing you quantifiable benefit improvement.

Installation and Usage Guide

The installation method is submersible, using 1/2 NPT threaded interface, which is easy to operate. It is recommended that the installation angle be greater than 15° (avoid horizontal or inverted) to prevent bubble accumulation from affecting measurement. Before installation, check the cable sealing to ensure waterproofing. Power supply is 12-24VDC, and wiring follows Modbus standard (Red: power positive, Black: ground, Blue: A, White: B). After powering on, the sensor automatically enters working mode, and data is read through host computer software.

It is recommended to perform two-point calibration for the first use (commonly used pH 4.00 and 6.86 or 9.18 buffer solutions). The operation is simple, and it can be used for a long time after calibration. The cable is standard 5 meters in length and supports on-site customization to meet different installation depth requirements.

Yexsensor YEX-iPH-306 Industrial Online pH Sensor Calibration and Maintenance

YEX-iPH-306 adopts two-point calibration method. It is recommended to recalibrate once every 1-3 months according to actual working conditions. The cleaning method is simple. The glass electrode surface can be rinsed with pure water. Avoid using strong acids, alkalis or abrasives to damage the electrode. The POM housing requires no special maintenance. The overall design minimizes operation and maintenance workload.

Why Choose Yexsensor

Yexsensor focuses on industrial sensor research and development and manufacturing, adhering to the concept of "precision, reliability, and solution-oriented". YEX-iPH-306 inherits the brand's consistent high standards: strict quality control, industry-leading cost performance, and perfect after-sales support. Choosing us, you not only get a high-performance sensor, but also full-process technical consultation, customized solutions and fast response services. Our sensors have been operating stably in many water treatment and chemical projects around the world, winning consistent trust from customers.

FAQ：

Q1. What is the measurement range and accuracy of YEX-iPH-306?

Range is 0～14.00 pH, resolution 0.01, accuracy ±0.1 pH (temperature accuracy ±0.3℃ at the same time). Automatic temperature compensation ensures stable output across the full range, meeting the needs of most industrial monitoring.

Q2. What communication protocols are supported? How to connect to PLC system?

Output is RS-485 Modbus/RTU protocol, which can be directly connected to PLC, DCS or IoT gateways. The protocol is open and transparent, wiring is simple, transmission distance is long, and anti-interference ability is strong.

Q3. What is the installation method and precautions?

Adopts submersible 1/2 NPT threaded installation, recommended tilt angle >15°. Before installation, confirm good sealing to avoid bubble affecting measurement. Cable waterproof treatment is very important.

Q4. What are the working environment requirements? Can it be immersed for a long time?

Working temperature 0～50℃, pressure ≤0.2MPa, IP68 protection level supports complete immersion for long-term use. POM housing is corrosion-resistant and suitable for acid, alkali and salt environments.

Q5. How to perform calibration? How long does it take?

Adopts two-point calibration method, which can be completed using standard buffer solutions. The whole process takes 10-15 minutes. It is factory calibrated. It is recommended to recalibrate regularly to maintain optimal performance.

Q6. Does the cable length support customization? What about power consumption?

Standard 5-meter cable supports customization of other lengths according to site requirements. Power consumption is only 0.1W@12V. Low power consumption design significantly saves energy.

Q7. What to do if the sensor drifts or becomes unstable?

First check whether the power supply voltage and wiring are correct; clean the glass electrode surface; perform two-point calibration again. If it is still abnormal, please contact our technical support for quick diagnosis and replacement.

Q8. What typical industries is it suitable for? Can customized services be provided?

Widely applicable to sewage treatment, chemical industry, aquaculture, food and pharmaceutical industries, etc. Yexsensor provides personalized customization, including cable length, installation interface, etc. Welcome to consult for exclusive solutions.

YEX-iPH-306 industrial online pH sensor is a reliable partner tailored for you by Yexsensor. Contact us immediately to get quotation, technical solutions or prototype testing, and start your intelligent monitoring!