Digital PEI Body pH Electrode with Matching Pin for Field Applications - IC-HI12301
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The HI12301 is a plastic body, double junction, gel filled pH electrode with a matching pin and built-in temperature sensor for temperature compensated measurements in a single probe design. The matching pin integrated into the HI12301 is for the Sensor Check capability of the edge pH meter; this feature is used to identify problems with the pH electrode such as cracks in the sensing glass or poor condition of the reference junction.
Regular price
$271.66 AUD
+ GST
$298.83 AUD Inc. GST
$298.83 AUD Inc. GST
The HI12301 is a plastic body, double junction, gel filled pH electrode with a matching pin and built-in temperature sensor for temperature compensated measurements in a single probe design. 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.
The matching pin integrated into the HI12301 is for the Sensor Check capability of the edge pH meter; this feature is used to identify problems with the
pH electrode such as cracks in the sensing glass or poor condition of the reference junction.
The HI12301 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.
Features:
- 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.
- Matching Pin: The HI12301 integrates a matching pin into the electrode and is part of the Hanna Instruments Sensor Check feature. The matching
pin checks the impedance across the indicating and reference electrodes. This allows the edge meter to alert the user in the event that the glass of
the indicating pH electrode is cracked and the condition of the reference junction.
- Built-In Temperature Sensor: HI12301 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
- Measurement Range: pH: 0 to 13
- Reference Cell Type: Double
- Junction Type/Flow Rate: Ceramic, single/15-20 uL/h
- Type of Electrolyte: gel
- Body Material: PEI
- Tip / Shape: spheric (dia: 7.5 mm)
- Matching Pin: yes
- Max. Pressure: 2 bar
- Temperature Operating Range: -5 to 70 C (23 to 158 F)
- Body Length/Overall Length: 120 mm / 181 mm
- Temperature Sensor: yes
- Outer Diameter: 12 mm
- Cable: 1 m (3.3')
- Connector Type: 3.5 mm connector
- Amplifier: no
- Recommended Use: field applications
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