Analog PH Electrode Suitable For Water Purification >5μS/Cm

Product Specification

Daruifuno ASP121E analog pH Sensor:

Precision and Longevity
The ASP121E pH sensor is a versatile and durable choice, engineered for a wide measuring range of 0 to 14 pH. It utilizes a low-impedance cylindrical glass membrane to deliver fast and stable readings.

A key feature is its sophisticated Ag/AgCl reference system. This design incorporates a double salt bridge and a KCl gel electrolyte, significantly extending the sensor's lifespan and ensuring reliable performance in challenging environments where conventional single-junction electrodes often fail.

Built for Reliability and High Performance Constructed with durability in mind, the electrode features a resilient glass body and a distinctive dot-shaped ceramic junction (frit), offering excellent resistance to chemical corrosion.

Operating Parameters:

Standard Operation: The sensor operates continuously from 0∘C to 80∘C with pressures reaching 6 bar.

High-Temperature Capability: For brief periods (less than 60 minutes), it can endure temperatures up to 100∘C at pressures up to 3 bar.

Customizable High-Temperature Model: An optional version is available for continuous use up to 100∘C or short-term spikes (under 60 minutes) up to 135∘C. This enhanced model has demonstrated excellent endurance, successfully completing over 40 high-temperature cycles in clean water testing.

Key Technical Specifications
The ASP121E is built for exceptional accuracy, with technical specifications to back it up:

Sensitivity (Slope): Greater than 95%.Zero Point (E0): ±0.25 pH.

Temperature Compensation: Offers flexible integration with PT100, PT1000, or NTC10K sensors for precise readings across varying temperatures.

Optimal Flow Rate: Designed for sample flow rates between 0.001 m/s and 0.5 m/s.

Physical Specifications: Standard dimensions are 12 mm in diameter and 120 mm in length, with customization available.

Installation: Features a standard PG13.5 mounting thread for straightforward integration.

Wiring: Available with integral or split leads for flexible setup.

This electrode is highly recommended for pure water applications with conductivity greater than 5μS/cm, establishing it as a definitive choice for reliable and precise pH monitoring.

• 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
• Suit for Pure Water >5μS/Cm

The ASP121E glass pH sensor offers ultimate flexibility with custom mounting accessories for pure water environment:

• Sidewall Mounting: Ideal for large tanks and vessels
• Top Flange Mounting: Perfect for sealed reactors
• Pipe/Flow Cell Mounting: For in-line measurements
• Submersible Mounting: For open tanks and channels
• Manual Retractable Holder: Enables maintenance without process shutdown

The optional PTFE (Teflon) sheath. Featuring 3/4" NPT threads for easy attachment to mounting accessories, it ensures seamless integration across various applications.