Analog pH sensor suitable for Chemical wastewater
Daruifuno ASP400 pH Sensor: Robust Measurement for Demanding Industrial Environments
The Daruifuno ASP400 pH sensor is engineered for reliable and precise pH measurement across the most challenging industrial and environmental applications, including chemical processes, wastewater treatment, industrial production, and environmental monitoring. This plastic-bodied pH sensor delivers exceptional performance and durability, making it an ideal choice for tasks involving domestic sewage, agricultural sewage, industrial wastewater, and aquaculture.
Advanced Sensor Technology for Superior Performance
The core of the Daruifuno ASP400 features a highly resilient design. It utilizes an acid and alkali resistant glass membrane to accurately measure pH across the full range of 0 to 14 pH. The sensor incorporates an Ag/AgCl reference electrode and a double salt bridge with a KCl gel reference system, which minimizes junction fouling and ensures long-term stability in dirty media. The electrode material consists of Glass and Porous PTFE membrane, housed within a rugged PPS (Polyphenylene Sulfide) plastic casing, providing excellent chemical resistance.
Key specifications ensure high measurement quality:
the Zero Position (E_0) is ±0.25pH (25℃), and the Slope% is greater than 95% (25℃), indicating highly accurate and responsive performance.Built for
Harsh Conditions and Automated Cleaning
Designed to withstand tough operational parameters, the ASP400 operates reliably under temperatures of 0℃to $80℃ at6Bar and 80℃ to 100℃ at 4Bar. The recommended sample flow rate for optimal measurement ranges from 0.001m/sto 0.5m/s. The sensor supports various temperature compensation units, including PT1000, PT100, and NTC10K, which can be customized to fit your system requirements.
A significant feature is its compatibility with an optional cleaning connector. When paired with a Daruifuno controller, this sensor can be integrated into an automated self-cleaning system, allowing users to control the cleaning time interval and cleaning frequency. This capability drastically reduces maintenance needs and ensures continuous, drift-free measurement in complex industrial environments.
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 Installation and CustomizationThe ASP400 boasts a highly adaptable design, facilitating integration into almost any measurement setup. The sensor body has a 35 mm diameter, a total length (including foot guard) of 200 mm, and an insertion depth of 100 mm. It features 1-inch NPT threads at both ends for secure mounting.
The sensor supports a variety of installation methods:
Sidewall Mounting: Ideal for large tanks and vessels.
Top Flange Mounting: Perfect for sealed reactors.
Pipe/Flow Cell Mounting: For accurate in-line measurements and flow cell installation method.
Submersible Mounting: Suitable for open tanks and channels.Manual Retractable Holder: This option enables maintenance and calibration without interrupting the process.
The sensor comes standard with a 5-meter integrated wire, with other lengths available for customization to meet specific site requirements. For robust and versatile pH monitoring in water treatment plants and beyond, the Daruifuno ASP400 is the ultimate solution.
Applications
The ASP400 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 ASP400 as a premium choice for industrial and environmental pH monitoring.
