PEI Body pH Electrode with Calomel References with BNC Connector


The HI1343B is a PEI body, single junction pH electrode with a BNC connector. This electrode has a single ceramic junction in the outer reference cell and the spherical pH sensing portion is made with high temperature glass. The mercury/mercury (I) chloride (Hg/Hg2Cl2) reference system provides a stable reference potential without the presence of silver. This design consideration is ideal for applications involving Tris buffer.

•  Calomel References
•  High Temperature (HT) Glass
•  Refillable Electrode

  The HI1343B uses high temperature (HT) glass, spherical bulb, glass body, single ceramic frit, single junction and is refillable with 3.5M KCl.
High Temperature Glass Formulation
•  The measurement of pH at very high temperatures is detrimental to the sensitive glass bulb and will shorten the life of it.
•  A pH electrode with general purpose (GP) glass will have a resistance of 100 megaohms at 25°C while the resistance of HT glass is around 400 megaohms at 25°C.
•  As the HI1343B is used at elevated temperatures the resistance decreases to approach the that of GP glass.
•  The HI1343B is suitable to use with samples that measure from 0 to 60°C.

  Spherical Bulb
•  The spherical bulb is for general purpose use. Other tip shapes include conic for penetration and flat tip for surface measurements.

  PEI Body
•  The body of the HI1343B is composed of polyetherimide (PEI) resin.
•  The PEI body is suitable for a wide range of applications and excels in field measurements due to its durability.
•  The shielding around the spherical glass tip minimizes breakage due to accidental bumping or dropping of the electrode.
•  The PEI plastic is a high quality plastic that is chemically resistant to many aggressive chemicals.

  Single Ceramic Outer Junction
•  The HI1343B is a single junction design.
•  The junction 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.

  BNC Connector
•  The HI1343B uses a BNC connector.
•  This type of connector is universal in that it can be used on any pH meter that has the female BNC probe input.
•  Other type of connectors include 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                          :  PEI
    Reference                                :  single, Hg/Hg₂Cl₂
    Junction / Flow Rate               :  ceramic, single / 15-20 μL/h
    Electrolyte                               :  3.5M KCl
    Range                                     :  pH: 0 to 14
    Max Pressure                           :  0.1 bar
    Tip Shape                               :  spheric (dia: 7.5 mm)
    Diameter                                 :  12 mm
    Body Length / Overall Length  :  120 mm / 175.5 mm
    Recommended Operating

Temperature                            :


0 to 60°C (32 to 140°F) – HT

    Temperature Sensor                :  no
    Matching Pin                           :  no
    Amplifier                                 :  no
    Digital                                     :  no
    Cable                                      :  coaxial; 1 m (3.3’)
    Connection                             :  BNC
    Applications                            :  tris buffer
    Warranty                                 :  6 months

Order now

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

Go to Top