Glass Body General Purpose Reference Electrode


The 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 is made for use in temperatures ranging from -5 to 100°C. This design consideration is made for general purpose use with pH, ORP, or ion selective electrode half-cells, as well as for use in a variety of titrations.

•  Double Junction Reference
•  Half-Cell Design
•  Refillable Electrode

  The HI5311 uses a glass body, single ceramic junction and is refillable with 3.5M KCl.
Glass Body
•  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.

  Single Ceramic Outer Junction
•  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 HI5311 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.

  4 mm Connector
•  The HI5311 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.


    Body Material                    :  glass
    Reference                          :  double, Ag/AgCl
    Junction / Flow Rate         :  ceramic, single / 15-20 μL/h
    Electrolyte                         :  3.5M KCl
    Max Pressure                     :  0.1 bar
    Diameter                           :  12 mm
    Recommended Operating

Temperature                      :


-5 to 100°C (23 to 212°F)

    Cable                                :  1 m (3.3′)
    Connection                       :  Banana
    Applications                      :  general purpose
    Warranty                           :  6 months

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To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

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