Reference Electrode for Samples with Suspended Solids


The HI5312 is a glass body, refillable, double junction, half-cell reference electrode with a 4 mm banana connector. This electrode has a PTFE sleeve junction in the outer reference cell and is made for use in temperatures ranging from -5 to 80°C. This design consideration is made for measurements in samples with suspended solids, and can also be used in a variety of titrations.

•  Half-Cell Design
•  Refillable Electrode
•  PTFE Sleeve Junction

  The HI5312 uses a glass body, PTFE sleeve 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.

  PTFE Sleeve Junction
•  Conventional pH electrodes use ceramic junctions that clog quickly when used in samples with high amounts of particulates.
•  When the junction is clogged, the electrode does not function.
•  The use of a polytetrafluoroethylene (PTFE) sleeve junction prevents clogging of the junction and allows proper flow of the liquid electrolyte.
•  As a result, pH electrodes with sleeve junctions stay fresh up to 20 times longer than conventional electrodes.

•  The HI5312 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 HI5312 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               :  PTFE
    Electrolyte                               :  3.5M KCl
    Max Pressure                           :  0.1 bar
    Diameter                                 :  10 mm
    Body Length / Overall Length  :  120 mm / 175.5 mm
    Recommended Operating

Temperature                            :


-5 to 80°C (23 to 176°F)

    Cable                                      :  1 m (3.3′)
    Connection                             :  Banana
    Applications                            :  samples with suspended solids, titrations
    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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