Digital Glass Body ORP Electrode for General Purpose


The HI36180 is a glass body, double junction, refillable ORP electrode with a built-in temperature sensor for temperature compensated measurements. This electrode has a single ceramic junction and the ORP sensing pin is made with platinum.The HI36180 electrode features a built-in microchip that stores sensor type, serial number, and calibration information. This probe connects to the meter with a 3.5 mm connector. The 3.5 mm connector is proprietary to meters that use digital electrodes. This design consideration is ideal for laboratories and general purpose ORP measurements.

•  3.5 mm Connector
•  Built-In Microchip
•  Platinum Sensing Pin

  The HI36180 features a platinum sensing pin, glass body, double junction reference and is refillable with 3.5M KCl.
Built-in Microchip
•  The built-in microchip stores sensor type, serial number and calibration information including date, time, offset, slope, probe condition and buffers used.
•  This information is automatically retrieved by edge® once the electrode is plugged in.
•  The ability to transfer information allows for hot swapping of probes without having to recalibrate.
•  All pH measurements are performed within the electrode and transferred digitally to the meter.
•  This overcomes any noise issues associated with the traditional high impedance analog measuring system.
•  Electrical noise can be generated from a built in temperature sensor and while working in a humid environment.

  Platinum Sensing Pin
•  The HI36180 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.

  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 allow 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.

  Double Junction Reference
•  A double junction electrode has an internal compartment surrounding the reference wire.
•  Silver ions are present in the electrolyte of the internal compartment, which houses the Ag/AgCl reference wire; the electrolyte outside this compartment is silver free.
•  The double junction design means that virtually no silver from the electrode enters the sample.
•  This design allows measurement in applications where silver ions in the sample are undesirable or silver precipitates on the junction are likely to form.

•  The HI36180 is a refillable probe. Since it is a double junction ORP electrode the fill solution is the HI7082 3.5M KCl.
•  If using a refillable ORP electrode, the fill cap should be removed prior to measurement.
•  Removing the cap creates positive head pressure in the reference cell allowing for higher flow rate of electrolyte through the outer junction.
•  A higher flow rate will result in a faster and more stable reading.

  Built-In Temperature Sensor
•  HI36180 features a built-in thermistor temperature sensor that is in the tip of the indicating pH electrode.
•  A thermistor temperature sensor provides for a high accuracy temperature reading and should be as close as possible to the indicating pH electrode in
order to compensate for the effect that temperature has on the membrane potential.
•  By having an accurate reading it is possible to provide an accurate temperature compensated reading.


    Range                                   :  ORP: ±2000 mV
    Body                                     :  Glass
    Reference                              :  double, Ag/AgCl
    Junction/Flow Rate               :  ceramic, single/ 15-20 μL/h
    Electrolyte                             :  3.5M KCl
    Max. Pressure                        :  0.1 bar
    Tip Shape                             :  platinum pin
    Diameter                               :  12 mm
    Body Length/Overall Length  :  120 mm / 175.5 mm
    Matching Pin                         :  no
    Amplifier                               :  yes
    Digital                                   :  yes
    Recommended Operating

Temperature                          :


-5 to 100°C (23 to 212°F)

    Temperature Sensor              :  Yes
    Cable                                    :  1 m (3.3’)
    Connection                           :  3.5 mm connector
    Applications                          :  laboratory 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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