Hanna HI1043B Refillable Double Junction pH Electrode
The Hanna HI1043B Refillable Double Junction pH Electrode is a high-performance, refillable combination pH electrode featuring a double junction design and high-temperature glass body. Designed for use in challenging sample types—including strong acids, bases, high-conductivity solutions, and TRIS buffers—this electrode is ideal for laboratories and industrial applications requiring high accuracy, stability, and chemical resistance. With a spherical sensing tip and robust ceramic triple-junction reference system, the HI1043B provides precise pH measurements across a wide temperature range.
Key Features
Double Junction Design: Reduces the risk of contamination between the sample and reference electrolyte, extending the lifespan of the electrode—especially in chemically aggressive solutions.
Refillable Electrode: Uses 3.5M KCl electrolyte that can be replenished as needed, ensuring long-term accuracy and stability.
High-Temperature Glass (HT): Allows reliable measurement in samples up to 100°C, making the probe ideal for heated or reactive solutions.
Triple Ceramic Junction: Offers improved electrolyte flow (40–50 µL/h) for fast response time and stable readings, particularly in viscous or low-conductivity samples.
Spherical Glass Tip: With a 9.5 mm diameter, the rounded tip ensures consistent contact with the sample surface, suitable for general-purpose and semi-viscous media.
Durable Glass Body: High-temperature resistant construction for use in a variety of harsh chemical environments.
Versatile Connectivity: Available in two models:
HI1043B with BNC connector
HI1043P with BNC + pin for extended meter compatibility
Technical Specifications
| Specification | Detail |
|---|---|
| Model Numbers | HI1043B (BNC), HI1043P (BNC + pin) |
| Type | Refillable combination pH electrode |
| Reference System | Double junction, Ag/AgCl |
| Junction Type | Triple ceramic |
| Flow Rate | 40–50 µL/h |
| Electrolyte | 3.5M KCl (refillable) |
| pH Range | 1 to 14 |
| Max Pressure | 0.1 bar |
| Operating Temperature | 0 to 100°C |
| Glass Type | HT (High Temperature) |
| Tip / Shape | Spherical (9.5 mm diameter) |
| Temperature Sensor | No |
| Amplifier | No |
| Body Material | HT glass |
| Cable Type | Coaxial; 1 meter |
| Recommended Use | Paints, seawater, strong acids/bases, TRIS buffers, high conductivity samples |
| Connector | BNC (HI1043B), BNC + pin (HI1043P) |
Applications
Chemical Manufacturing: Designed for accurate pH monitoring in strong acid and base environments.
Paint and Coating Industry: Suitable for viscous and high-solid samples where electrode clogging is common.
Environmental Monitoring: Ideal for seawater and brackish water testing due to its resistance to fouling and contamination.
Pharmaceutical & Biotech Labs: Compatible with TRIS buffers often used in molecular biology and protein analysis.
General Laboratory Use: Offers broad chemical compatibility and durability for multipurpose pH measurement needs.
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