HI5311 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 can be used over a temperature range of -5 to 100°C.°

Glass Body

The glass body is ideal for laboratory use. The glass resists many harsh chemicals and is easy to clean. The glass body also allows heat to be transferred quickly to the internal reference electrolyte. The mV generated by the reference cell is temperature dependent. The faster the equilibrium, the more stable the reference potential.

Single Ceramic Outer Junction

The outer junction of the electrode, also known as the salt bridge, is a necessary component of the circuit. The movement of ions must flow through the junction in order to obtain a stable reading. The outer reference has a single ceramic frit. Ceramic is a porous material that readily fuses with the glass body and has a similar coefficient of expansion. The single ceramic junction has a flow rate of 15-20 μL/hour. Other junction types have higher flow rates and are made of different materials.  

4 mm Connector

HI5311 uses a 4 mm banana connector. This type of connector easily plugs into the reference input of a suitable meter. Other types of connectors include BNC, DIN, screw type, T-type, and 3.5mm, etc. These types of connectors tend to be proprietary to a specific type of meter and are not interchangeable.