Hanna HI2031B Spear Tip pH Electrode
The Hanna HI2031B Spear Tip pH Electrode is a precision spear tip pH electrode specifically designed for semi-solid and soft materials, including foods, soils, and slurries. With its sharp conic glass tip, this electrode allows direct penetration into samples where flat or spherical tips may fail. It offers reliable performance through a ceramic junction and KCl 3.5M electrolyte, making it ideal for food safety, agricultural testing, and quality control.
Key Features
Spear-Shaped Tip for Penetration: The 6 x 10 mm conic tip enables easy insertion into soft or semi-solid samples such as fruits, meat, cheese, or soil slurries—delivering direct and accurate pH measurements without additional preparation.
Ceramic Single Junction: The single ceramic junction provides stable electrolyte flow and fast response time, particularly effective in viscous or low-moisture samples.
Glass Body Construction: Durable and chemically resistant, the glass housing supports laboratory-grade accuracy and allows easy cleaning between uses.
Standard BNC Connector: The electrode features a BNC connector, ensuring wide compatibility with Hanna benchtop and portable pH meters.
Reliable Electrolyte System: Pre-filled with KCl 3.5M + AgCl, this electrode maintains internal stability and accurate output across a wide range of sample types.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | HI2031B |
| Electrode Type | Spear Tip pH Electrode |
| Reference System | Single, Ag/AgCl |
| Junction Type | Ceramic, single |
| Electrolyte | KCl 3.5M + AgCl |
| pH Range | 0 to 12 |
| Operating Temperature Range | -5 to 70°C |
| Tip Shape | Conic (6 × 10 mm) |
| Body Material | Glass |
| Maximum Pressure | 0.1 bar |
| Temperature Sensor | No |
| Amplifier | No |
| Connector Type | BNC |
Applications
Food Industry: Ideal for measuring pH in cheese, meat, fruit pulp, and dough, directly at the source, helping ensure compliance with food safety regulations.
Agriculture: Useful for pH analysis in moist soils, plant tissues, and compost materials to optimize growth conditions.
Semi-Solid Testing: Effective for testing creams, gels, and other viscous samples in cosmetic and pharmaceutical quality control.
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