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The HI5412 is a glass body, refillable, double junction, half-cell reference electrode with a 4 mm banana connector. This electrode has a single ceramic junction in the outer reference cell and calomel references.
This design consideration is made for for use with ion selective electrodes, titrations, and general purpose applications in temperatures ranging from -5 to 60℃.
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Hanna Instruments offers a wide variety of pH electrodes that are designed for many different applications. The type of glass used, body material, type of junction, type of reference and electrolyte used are just some of the design considerations.
The HI5412 uses a glass body, single ceramic junction, calomel references and is refillable with 3.5M KCl.
The glass body is ideal for laboratory use. The glass is resistant to many harsh chemicals and is easily cleaned. The glass body also allows for a fast transfer of heat to the internal reference electrolyte. The mV generated by the reference cell is temperature dependent. The faster the equilibrium the steadier the reference potential.
The outer junction of an electrode, also known as a salt bridge, is necessary component of the electrical circuit. The movement of ions must flow through the junction for a steady reading. The outer reference has a single ceramic frit. The ceramic is a porous material that is easily fused with the glass body and has a similar expansion coefficient. A single ceramic junction has a flow rate of 15-20 µL/hour. Other junction types are available with higher flow rates and made with different materials.
The HI5412 is a refillable reference electrode. Since it is a double junction electrode the fill solution is the HI7082 3.5M KCl. This solution does not contain any silver as with single junction electrode. The absence of silver will prevent any silver precipitate from forming at the junction surface and clogging it. Clogging of the junction will result in drifty and erratic readings.
The HI5412 uses a 4 mm banana connector. This type of connector is easily plugged into the reference input on suitable meters. Other type of connectors include BNC, DIN, screw type, T-type, and 3.5mm to name a few. These types of connectors tend to be proprietary for a particular type of meter and are not interchangeable.
| SKU | HI5412 |
| Name | Glass Body Calomel Reference Electrode – HI5412 |
| Reference Cell Type | single, Hg/Hg₂Cl₂ |
| Junction Type/Flow Rate | ceramic, single / 15-20 µL/h |
| Refill Electrolyte | 3.5M KCl |
| Body Material | glass |
| Max. Pressure | 0.1 bar |
| Temperature Operating Range | -5 to 60°C (23 to 140°F) |
| Body Length/Overall Length | 120 mm / 175.5 mm |
| Outer Diameter | 12 mm |
| Cable | 1 m (3.3 in.) |
| Connector Type | 4 mm banana |
| Recommended Use | general purpose, titrations |
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To empower customers to achieve quality
by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
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