Analog PH Electrode Suitable For Domestic Sewage
Daruifuno ASP300 Analog Plastic-Cased pH Sensor: Precision and Durability for Diverse Water AnalysisThe Daruifuno ASP300 is a robust, analog industrial pH sensor engineered for high-performance and reliability across a wide array of water quality monitoring applications. Encased in durable ABS housing, this sensor is designed to deliver consistent and accurate pH measurements from 0 to 14 pH. Its advanced construction is specifically tailored to withstand challenging environments encountered in wastewater, industrial, and environmental monitoring sectors.
Key Advantages
- Corrosion Resistance: Engineered for harsh sewage environments with chemicals and pollutants.
- High Accuracy: Provides precise pH measurements in dynamic wastewater conditions.
- Self-Cleaning Capability: Automatic cleaning function maintains sensor accuracy by reducing contaminant buildup.
- Real-Time Monitoring: Integrates with control systems for instant pH adjustment in treatment processes.
- Long-Term Stability: Maintains consistent performance with minimal calibration requirements.
- Regulatory Compliance: Meets strict environmental standards for municipal and industrial wastewater treatment.
Key Technical Specifications for High Accuracy At the core of the ASP300 is a sophisticated electrode system built for long life and stability. It features a low impedance hemispherical glass membrane, optimizing sensitivity and response time while offering enhanced strength. The reference system employs a high-performance Ag/AgCl reference electrode coupled with a double salt bridge and KCl gel reference system to minimize poisoning and ensure stable reference potential, significantly extending the sensor's lifespan in harsh media. The electrode material is a combination of Glass and Porous PTFE membrane, contributing to fouling resistance.
The sensor exhibits excellent electrical characteristics, with a Zero Position (E0) of ±0.25 pH at 25℃ and a Slope percentage greater than 95%(at 25℃), confirming its high sensitivity and calibration precision. Temperature compensation is flexible and can be customized with various units, including PT1000, PT100, or NTC10K, ensuring accurate readings across fluctuating process temperatures.
Built for Industrial Resilience
Designed for industrial use, the ASP300 operates within a specified temperature and pressure range: 0℃~ 60℃at 4 Bar and 60℃~ 80℃ at 2 Bar. The optimal sample flow rate is maintained within a broad range, from a minimum velocity of 0.001m/s up to 0.5 m/s, making it suitable for both static and dynamic flow conditions.
The physical design facilitates easy installation.
The sensor has an insertion depth diameter of 35 mm, with a total length including the foot guard of 200mm and an effective measurement depth of 100mm. It features 1'' NPT threads at both ends for secure insertion mounting. The integrated wire comes standard at 5 meters, with other lengths available for customization based on application needs.
Technical Specifications
| Model | ASP300 | ASR300 | ASP400 | ASR400 |
| Measuring Range | 0~14pH | ±1500mV | 0~14pH | ±2000mV |
| Indicator Electrode | Low impedance hemispherical glass membrane | platinum flat | Acid and alkali resistant glass membrane | platinum ring |
| Reference System | Ag/AgCl reference electrode, double salt bridge, KCl gel |
| Electrode Material | Glass+Porous PTFE membrane | PTFE+platinum | Glass+Porous PTFE membrane | PTFE+platinum |
| Temp.&Pressure | 0~60℃@4Bar, 60~80℃@2Bar | 0~80℃@6Bar, 80~100℃@4Bar |
| Sample Flow Rate | 0.5 m/s ≥ velocity ≥ 0.001 m/s |
| Zero Position(E0) | ±0.25pH (25℃) | ±20mV (25℃) | ±0.25pH (25℃) | ±20mV (25℃) |
| Slope% | >95% (25℃) |
| Temperature Unit | @customized PT1000, PT100, NTC10K, etc. |
| Insertion Depth | Diameter 35mm, total length including foot guard 200mm |
| Mounting Thread | 1’’ NPT threads at both ends, insertion depth 100mm |
| Lead Type | Integrated |
| Cable Length | Standard 5m, other length can be customized |
| Housing Material | ABS | PPS |
| Application | Domestic sewage, agricultural sewage, industrial wastewater | Complex industrial environments, chemical processes, or wastewater treatment processes. |
Features & Advantages
- 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.
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.
