Gel Filled PEI Body ORP Electrode with BNC Connector


The HI3230B is a PEI body, single junction ORP electrode with a BNC connector. This electrode has a single ceramic junction in the outer reference cell and the ORP sensing pin is made with platinum. This design consideration is ideal for ORP measurements in municipal water and quality control applications.

•  Durable PEI Body
•  Gel Electrolyte
•  Platinum Sensing Pin

  The HI3230B uses a platinum pin, PEI body, single ceramic junction and gel electrolyte.
PEI Body
•  The body of the HI3230B 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 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. 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.

  Platinum Sensing Pin
•  The HI3230B ORP sensor is made with platinum.
•  An ORP sensor must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to
promote rapid electron exchange, a property known as high exchange current density.
•  Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors.
•  The platinum sensor is often preferred because it is mechanically simpler and safer to produce. Platinum can be welded to glass and has the same thermal coefficient.
•  The platinum sensor signal is carried through the electrode body, and together with the reference signal is conducted to the measurement meter.

  BNC Connector
•  The HI3230B 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, Ag/AgCl
    Junction / Flow Rate               :  ceramic, single
    Electrolyte                              :  gel
    Range                                     :  ORP: ±2000 mV
    Max Pressure                          :  2 bar
    Tip Shape                               :  platinum pin
    Diameter                                 :  12 mm
    Body Length / Overall Length :  120 mm / 163.5 mm
    Recommended Operating

Temperature                           :

 -5 to 70°C (23 to 158°F)
    Temperature Sensor               :  no
    Matching Pin                          :  no
    Amplifier                                :  no
    Digital                                     :  no
    Cable                                      :  coaxial; 1 m (3.3’)
    Connection                             :  BNC
    Applications                           :  municipal water, quality control
    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

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