Precise real-time monitoring of potassium ion concentration in water solves industry pain points such as time-consuming traditional testing, frequent maintenance, and unstable data.

In precision agriculture fertilization, industrial process control and wastewater treatment, potassium ion concentration fluctuates greatly. Problems such as lag of traditional sampling detection, short electrode life seriously affect process optimization and cost control. YEXSensor YEX-S2-KA-A online potassium ion sensor based on patented PVC membrane ion selective electrode technology, together with automatic temperature compensation, provides fast, stable and accurate online monitoring means for complex water environments.

Core Advantages
       • Patented potassium electrode, reference liquid slow-release technology significantly extends electrode service life
       • Two-wire RS-485 Modbus/RTU output, strong anti-interference ability, easy integration into PLC/DCS systems
       • IP68 protection rating, supports submersible installation, suitable for long-term immersion conditions

YEX-S2-KA-A Industrial Potassium Ion Sensor Overview

YEXSensor YEX-S2-KA-A split-type online potassium ion sensor adopts PVC-membrane based potassium ion selective electrode, specially designed for real-time, continuous monitoring of potassium ion concentration in water. The sensor integrates a Pt1000 temperature compensation element, which automatically corrects the influence of temperature on measurement results, ensuring a fast, simple, accurate and cost-effective testing process.

The product offers two range versions: YEX-S2-KA-A (0-100mg/L) and YEX-S2-KA-S (0-1000mg/L), meeting demands from low-concentration surface water, irrigation water to higher concentration industrial wastewater and more. It supports RS-485 Modbus/RTU protocol and optional 4-20mA output, seamlessly interfacing with various industrial control systems, providing reliable support for data acquisition and process control.

YEX-S2-KA-A Industrial Potassium Ion Sensor Key Advantages

1. Patented electrode technology, excellent long-term stability
Adopts patented potassium ion selective electrode. Internal reference solution seeps extremely slowly through microporous salt bridge under pressure ≥100KPa, making reference system extremely stable. Compared with ordinary industrial electrodes, service life is significantly extended, effectively reducing electrode replacement frequency and lowering long-term operation and maintenance costs.

2. High precision measurement and automatic temperature compensation
Range covers 0～100mg/L (KA-A) or 0～1000mg/L (KA-S). High resolution, accuracy ±10% of reading or ±1mg/L (±0.5℃). Built-in Pt1000 automatic temperature compensation effectively eliminates measurement error caused by temperature changes on potassium ions, ensuring data consistency under different working conditions.

3. Strong anti-interference ability and flexible integration
Adopts RS-485 bus Modbus/RTU protocol, together with shielded cable design, featuring good anti-electromagnetic interference performance. Supports direct connection to PLC, DCS, industrial control computers, touch screens and other third-party devices. Convenient integration, stable and reliable signal transmission. Also provides 4-20mA current output option to meet different control system requirements.

4. Rugged and durable, convenient installation and maintenance
IP68 protection rating, wetted materials are POM+ABS or POM+316L stainless steel depending on model, strong corrosion resistance. 3/4 NPT thread design facilitates submersible, pipeline or tank installation. The sensor installation must maintain an inclination angle greater than 15 degrees, daily cleaning and maintenance are simple and easy.

YEX-S2-KA-A Industrial Potassium Ion Sensor Technical Specifications

Note: Sensor connector is M16-5 core waterproof connector male.

YEX-S2-KA-A Industrial Potassium Ion Sensor Applications

YEXSensor YEX-S2-KA-A online potassium ion sensor is widely used in the following scenarios:

1. Precision agricultural irrigation and fertigation: monitor potassium concentration in irrigation water and nutrient solutions to achieve precise fertilization, reduce fertilizer waste and increase crop yields.
2. Wastewater treatment and environmental monitoring: monitoring K+ concentration in influent and effluent of industrial and municipal wastewater treatment plants, evaluating treatment effect and discharge compliance.
3. Industrial process control: online monitoring of potassium ion concentration in chemical, fertilizer, pharmaceutical and other industries to ensure stable process parameters.
4.Environmental water monitoring: monitoring background values of potassium in rivers, lakes, groundwater, providing data support for water environment quality assessment.
5. Aquaculture and recirculating water systems: potassium balance control in aquaculture water to maintain stable water quality and reduce fish and shrimp stress.

FAQ

Q1: What is the main difference between YEX-S2-KA-A and KA-S models?
A1: KA-A range is 0-100mg/L, housing POM+ABS; KA-S range is 0-1000mg/L, housing POM+316L stainless steel, more suitable for higher concentration or corrosive conditions.

Q2: How does the patented electrode improve service life?
A2: Patented reference liquid slow-release technology makes internal solution seep extremely slowly under pressure ≥100KPa, reference system very stable, electrode life significantly extended compared to ordinary industrial electrodes.

Q3: What output methods does the sensor support?
A3: Standard configuration RS-485 Modbus/RTU protocol, and optional 4-20mA current output, convenient for connecting to different industrial control systems.

Q4: What installation precautions should be taken?
A4: Do not install upside down or horizontally, must maintain at least 15° inclination. Installation location should be away from strong interference sources, and maintain appropriate immersion depth.

Q5: How to perform calibration?
A5: Two-point calibration (zero + slope). Immerse the sensor into corresponding standard solutions, wait 10 minutes until reading stabilizes, then execute calibration command. Refer to product manual for details.

Q6: What is the routine maintenance frequency and method?
A6: Soak and activate in tap water for 24 hours before use. Clean with deionized water after measurement. Store dry with protective cap when not used for long periods. Regularly check that terminals are dry.

Q7: What are the operating pH and temperature ranges?
A7: Operating temperature 0～40℃, pH range 4～10, pressure less than 0.1 MPa, meeting most water quality monitoring scenarios.

Q8: Is cable customization and other parameter adjustments supported?
A8: Yes, support cable length customization beyond 5 meters and technical selection adjustments. Please contact YEXSensor technical team to discuss specific project requirements.

Summary

YEXSensor YEX-S2-KA-A online potassium ion sensor, based on patented ion selective electrode technology, combined with strong anti-interference communication design and rugged IP68 protection structure, provides a stable and reliable engineering solution for online water potassium monitoring. It helps users achieve precise control of process parameters, reduce operation and maintenance costs, and enhance overall system intelligence.

Need standard solution preparation guidance, installation drawings, on-site debugging support or selection advice? Please feel free to contact YEXSensor professional team, we will provide you with complete technical support and customized service.

YEXSensor — Focus on industrial online water ion monitoring, enabling precision process control.