Hanna HI1131P Refillable Combination pH Electrode

Hanna HI1131P Refillable Combination pH Electrode

The Hanna HI1131P Refillable Combination pH Electrode is a high-performance, refillable combination pH electrode designed for general laboratory applications. Featuring a double junction reference system, high-temperature glass, and a BNC + pin connector, this model is specifically compatible with pH meters that support CAL Check™ diagnostics. Whether used for routine measurements or more demanding beverage analysis such as beer, the HI1131P offers both precision and long-term durability.

Key Features

• BNC + Pin Connector for CAL Check™: The HI1131P includes a BNC connector along with a matching pin, allowing seamless integration with Hanna meters that feature CAL Check™ functionality for real-time diagnostics and calibration status.

• Refillable Electrolyte System: Filled with 3.5M KCl, this electrode can be easily refilled, thus extending service life and ensuring stable, long-term performance.

• Double Junction Reference: This design prevents contamination from complex sample matrices, such as beer or biological media, making it more robust than single-junction alternatives.

• High-Temperature Glass (HT): Engineered to deliver consistent results from 0 to 100°C, making it suitable for a broad spectrum of laboratory samples, including heated or temperature-sensitive solutions.

• Ceramic Junction: The single ceramic junction provides a controlled flow rate of 15–20 µL/h, optimizing the diffusion of the reference electrolyte for accurate and stable measurements.

• Spherical Glass Tip (9.5 mm): Offers broad surface contact for versatile use in beakers, flasks, and standard containers.

• Durable Glass Body: Chemically resistant and easy to clean, ideal for regular laboratory use.

For users requiring temperature measurement or signal amplification, consider these models:

• HI1131Y – BNC + RCA with thermistor

• HI11313 – Quick Connect DIN with amplifier and temperature sensor

Technical Specifications

Applications

• Laboratory pH Analysis: Suitable for chemical, biological, and educational lab settings requiring accurate pH measurements.

• Brewing and Beverage Industry: Ideal for use in beer, wort, and other fermentation sample testing, where reliability and cleanliness are essential.

• Water and Wastewater Testing: Can be used for routine environmental monitoring and water treatment processes.

• Quality Control: Supports production environments that rely on CAL Check™-equipped meters for traceability and calibration integrity.