Customized Analog PH Sensor For Complex Acid And Alkali Water

Daruifuno Ultimate Custom High-Temperature or Normal temperature pH Electrode ASP122E: Engineered for Extreme Industrial Environments
For process engineers and maintenance professionals dealing with the toughest measurement challenges, a standard pH sensor simply won't survive. This article introduces our specialized, customizable industrial pH electrode, expertly designed to deliver stable, high-accuracy measurements across extreme temperatures, pressures, and in chemically complex media.

Why Choose a Double-Junction, High-Temperature pH Probe?
In demanding industrial applications—such as wastewater treatment, chemical processing, sterilization, and boiler feed water monitoring—the electrode's reference system is the most critical point of failure.

Our probe features an advanced design to overcome these common issues:

Double Salt Bridge (Ag/AgCl Reference): The double junction configuration utilizes a KCl gel to create a protective barrier. This significantly isolates the inner reference system from the sample media, preventing contamination by poisoning ions like sulfides, heavy metals, or proteins that cause standard electrodes to fail quickly. This makes it an ideal pH sensor for complex environments.

Low Impedance Glass Membrane: A low impedance cylindrical glass membrane ensures rapid response times and superior measurement stability, even in low-conductivity samples.

Robust Ceramic Junction: The electrode body is constructed from Glass and features a specialized Dot-shaped ceramic hole. This unique junction minimizes electrolyte outflow while resisting clogging, providing reliable electrical contact in dirty or viscous solutions.

Technical Specifications for Seamless Integration
Beyond its durability, this industrial pH probe meets strict performance and integration requirements for professional use:

Installation Standard: Features the industry-standard PG13.5 mounting thread, allowing for simple drop-in replacement or new installation into process lines or submersible housings.

Optimal Flow Rate: Designed to operate effectively with sample flow rates from a minimum of 0.001 m/s up to 0.5 m/s.

Signal Quality: Guaranteed high accuracy with a Slope greater than 95% and a Zero Point(E 0) of ±0.25 pH.

Built-in Temperature Compensation: Integrates an automatic temperature compensation (ATC) sensor, which is essential for accurate pH reading correction across its wide thermal range. Customizable options include PT100, PT1000, or NTC10K.

Physical and Electrical Customization: Standard dimensions are Diameter 12mm/Length 120mm, with custom sizing available. Connectivity is flexible, offering both integrated (fixed cable) or detachable (split) lead connections to suit your specific transmitter or wiring needs.

This specialized, custom analog pH sensor is your reliable partner for achieving consistent, accurate, and low-maintenance pH monitoring in the most demanding industrial environments.

• 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.

Suzhou Delfino Environmental Technology Co., Ltd. is a professional manufacturer of water analysis instruments and sensors, integrating development and production together. Our main products include online, portable water quality analysis instruments. Since its establishment, we have focused on the development and production of water quality analysis instruments.

The monitoring parameters of water quality analyzer instruments mainly include: pH, ORP, dissolved oxygen, conductivity/TDS/salinity, turbidity, SS, Chlorophyll, Blue-green algae, COD, NH4-N, NO3, free chlorine, peracetic acid and so on.

As the rapid growth of the global economy leads to increased consumption and urbanization, solid waste generation has increased significantly, directly affecting the water and wastewater treatment industry. Daruifuno aims to provide solutions to various industries and fields and create a cleaner and healthier drinking water environment for the earth.

Our products mianly application for follows industry：Municipal sewage water treatment plant, industrial wastewater treatment plant, Chemical, Petroleum, Papermaking, Food and drinking, Medicine, Electroplating, PCB plant, fish farm,Lake/river/ocean/groundwater/surface and so on.

Our company was established in 2015, but our predecessor has been committed to the water quality testing industry for more than 10 years. At present, we have our own R&D center with many senior engineers with more than 10 years of experience in the research and development of water quality analyzers and water quality sensors, and are equipped with strict front-line production workers, professional quality inspection personnel and testing equipment to check every process.

As a high-tech enterprise in China, our production is strictly in accordance with ISO9001 from raw material sources to finished equipment. After years of efforts, the company has obtained more than 20 patent certificates, high-tech enterprise certificates, CE, SGS, etc. He has accumulated rich practical experience in the field of water quality testing and has unique insights in the field of water quality testing.

Our company takes "reasonable prices, efficient production time, and good after-sales service" as its purpose and adheres to the business philosophy of "based on quality and creating value for customers". At present, the company is actively exploring the international market and actively promoting its own brands and products. It has been exported to Asia, Southeast Asia, Europe, Africa, and South America, with customers in more than 50 countries and regions around the world. And hope to develop together with customers for mutual benefit with high-quality products and sincere services.