Analog PH Sensor With 0~14pH For Domestic Sewage

Daruifuno ASP300 Industrial pH Sensor: Robust Measurement for Water Analysis

The Daruifuno ASP300 is a heavy-duty, analog industrial pH sensor engineered to deliver exceptional performance and unwavering reliability across demanding water quality monitoring tasks. Encased in durable ABS housing, this device provides precise and consistent pH measurements spanning the full 0 to14 range. Its advanced construction is specifically designed to thrive in challenging environments typical of wastewater treatment, industrial process control, and extensive environmental monitoring applications.

Performance Advantages in Harsh Media
This sensor offers critical benefits tailored for corrosive and contaminated sewage systems. It features outstanding corrosion resistance against aggressive chemicals and pollutants. The ASP300 ensures high measurement accuracy even within dynamic wastewater flows, aided by its integrated automatic self-cleaning capability. This function actively minimizes contaminant buildup, guaranteeing sustained sensor accuracy with reduced maintenance intervals.

The ASP300 supports real-time process monitoring, seamlessly integrating with existing control systems for instant feedback and prompt pH adjustments. It is characterized by its long-term stability, requiring minimal calibration efforts over its service life.6 Using the ASP300 helps facilities achieve regulatory compliance with stringent environmental standards applicable to both municipal and industrial wastewater discharge. 

Advanced Technical Specifications
At the heart of the ASP300 lies a sophisticated electrode system built for extended service life and superior stability. It incorporates a low impedance hemispherical glass membrane, which maximizes sensitivity and response time while offering enhanced mechanical strength. The reference system utilizes a high-performance Ag/AgCl reference electrode coupled with a unique double salt bridge and KCl gel system. This design effectively minimizes electrolyte poisoning, ensuring a stable reference potential and significantly extending the sensor's operational lifespan in aggressive media. The electrode body material is a combination of Glass and a Porous PTFE membrane, providing excellent resistance to fouling.

The sensor exhibits premium electrical properties, confirmed by a Zero Position (E_0) of ±0.25 pH at 25℃ and a Slope percentage greater than 95% (at 25℃), attesting to its high sensitivity and calibration precision. Temperature compensation is highly flexible and can be customized with various elements, including PT1000, PT100, or NTC10K units, ensuring accurate data despite fluctuating process temperatures.

Designed for Industrial Resilience
Optimized for continuous industrial operation, the ASP300 functions reliably within specified temperature and pressure boundaries: 0℃ to 60℃ at 4 Bar, and 60℃ to 80℃ at 2 Bar. It accommodates a broad range of sample flow rates, from a minimal velocity of 0.001 m/s up 0.5 m/s, making it suitable for both static tanks and dynamic pipelines.

The physical design ensures straightforward installation. The sensor has an insertion diameter of 35 mm, with a total length (including the foot guard) of 200 mm and an effective measurement depth of 100 mm. Secure insertion mounting is facilitated by 1'' NPT threads located on both ends. The integrated cable comes standard at 5 meters, with options for customized lengths based on specific application requirements.

• 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

Versatile Mounting and Self-Cleaning Capabilities: 
A key feature is the sensor's compatibility with diverse installation methods, offering unparalleled flexibility for various process setups:

• Sidewall Mounting: Ideal for large tanks and vessels where access is easier on the side.
• Top Flange Mounting: Perfect for sealed reactors or pressurized systems.
• Pipe/Flow Cell Mounting: Designed for seamless integration into in-line process measurement systems.
• Submersible Mounting: Suited for open tanks and channels where the sensor is fully submerged.
• Flow cell installation method: For controlled sample conditions.
• Manual Retractable Holder: Enables essential maintenance and calibration without shutting down or depressurizing the process.

Furthermore, the analog ASP300 sensor can be equipped with an optional cleaning adapter. When paired with a compatible Daruifuno controller, this feature allows for the control of self-cleaning time intervals and cleaning frequency, significantly reducing manual maintenance and ensuring long-term measurement accuracy in fouling applications.

The ASP300 pH sensor is a vital tool for precise pH 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 ASP300 as a premium choice for industrial and environmental pH monitoring.