HI12300

Digital PEI Body pH Electrode for Field Applications

Description

The HI12300 is a plastic body, double junction, gel filled pH electrode with a built-in temperature sensor for temperature compensated measurements in a single probe design. This probe features a 3.5 mm connector designed exclusively to be used with Hanna Instruments edge® Tablet Meters. The HI12300 electrode features a built-in microchip that stores sensor type, serial number, and calibration information. It also features a single ceramic junction and the spherical pH sensing portion is made with general purpose glass. The electrode has a rugged PEI (polyetherimide) body that has the chemical resistance of a glass body in an unbreakable plastic making it ideal for field and industrial applications.

•  3.5 mm Connector
•  Double Junction Reference
•  Spherical Glass Tip
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.

  Spherical Glass Tip
•  The spherical shaped tip design allows for a wide area of contact with the sample.
•  This permits a faster electrode response with a higher degree of stability.
•  The tip uses a glass formulation that has a resistance of approximately 100 megaohms.
•  This means that measuring conditions are optimal around ambient temperatures.
•  Use of high or low temperature glass around ambient temperatures would not be optimal due to a long response time or a shortened lifespan of the electrode.

  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.

  PEI Electrode Body
•  The PEI (polyetherimide) electrode 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 harsh chemicals.

  Built-In Temperature Sensor
•  HI12300 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.

     SPECIFICATIONS

    Body Material                          :  PEI
    Reference                                :  double
    Junction / Flow Rate               :  ceramic, single / 15-20 μL/h
    Electrolyte                               :  gel
    Range                                     :  pH: 0 to 13
    Max Pressure                           :  2 bar
    Tip Shape                               :  spheric (dia: 7.5 mm)
    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                :  yes
    Matching Pin                           :  no
    Amplifier                                 :  no
    Digital                                     :  yes
    Cable                                      :  1 m (3.3′)
    Connection                             :  3.5 mm connector
    Applications                            :  field applications
    Warranty                                 :  6 months
Go to Top