Hanna HI3131B Refillable Combination ORP Electrode
The Hanna HI3131B Refillable Combination ORP Electrode is a precision combination ORP electrode with a refillable design, ideal for laboratory and industrial applications requiring accurate oxidation-reduction potential (ORP) measurements. Featuring a platinum pin sensing element, a single ceramic junction, and a glass body, this electrode ensures stable performance across a wide range of redox conditions.
Key Features
Refillable Design for Longevity: The refillable KCl 3.5M + AgCl electrolyte allows users to maintain electrode performance over time, reducing long-term replacement costs.
Platinum Pin Sensing Tip: The platinum pin tip delivers high sensitivity and fast response to changes in ORP, making it suitable for demanding redox environments.
Single Ceramic Junction: Designed with a 15–20 µL/h flow rate, the ceramic junction offers stable contact with the sample, ensuring consistent and accurate readings.
Durable Glass Body: The glass construction provides chemical resistance and is easy to clean, making the electrode suitable for a wide variety of lab-grade applications.
Standard BNC Connector: The coaxial cable with BNC connector ensures compatibility with most benchtop ORP meters, allowing flexible and reliable integration.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | HI3131B |
| Electrode Type | Refillable Combination ORP Electrode |
| Reference System | Single, Ag/AgCl |
| Junction / Flow Rate | Ceramic, single / 15–20 µL/h |
| Electrolyte | KCl 3.5M + AgCl |
| ORP Range | ±2000 mV |
| Operating Temperature Range | -5 to 70°C |
| Tip Shape | Platinum pin |
| Body Material | Glass |
| Maximum Pressure | 0.1 bar |
| Temperature Sensor | No |
| Amplifier | No |
| Cable | Coaxial; 1 meter (3.3 ft) |
| Connector Type | BNC |
Applications
Water and Wastewater Treatment: Ideal for monitoring oxidation-reduction reactions in disinfection and treatment processes.
Electroplating and Chemical Processing: Suitable for evaluating redox activity in plating baths and chemical formulations.
Environmental Testing: Useful for assessing redox potential in soil, groundwater, and natural waters during environmental assessments.
Laboratory Experiments: Recommended for academic and industrial research requiring high-precision ORP measurements.
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