The HI10482 HALO is a Bluetooth Smart (Bluetooth 4.0) pH and temperature electrode with Hanna’s Clogging Prevention System (CPS).
This electrode has a unique ground glass junction coupled with a PTFE sleeve to prevent particulates within a sample from clogging the junction. In addition to the specialized junction, the HI10482s glass body and spherical sensing bulb make it ideal for use in a wide variety of applications. All readings are transmitted directly to the HI2202 edgeblu or a compatible Apple or Android device running the Hanna Lab App.
Since the features of the HI10482 HALO electrode are of great benefit to winemakers, the average pH of wine has influenced the choice of calibration buffers when paired with a compatible meter. Generally, a pH between 3 and 4 is optimal for most wines. To increase accuracy and ensure the expected readings are bracketed between the calibration points, pH 3.00 calibration buffer is displayed in lieu of pH 4.01 buffer when this application-specific HALO is connected to the Hanna Lab App.
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CPS technology is an innovation for the improvement of pH measurements in wine juice and must samples that have high solids content. Conventional pH electrodes use ceramic junctions that can clog quickly from solids found in juice and must. When the junction is clogged, the electrode does not function properly and erratic readings can result. CPS technology utilizes a ground glass junction coupled with a movable PE sleeve to prevent clogging. The ground glass allows proper flow of the liquid, while the PE sleeve repels solids. As a result, pH electrodes with CPS technology take up to 20 times longer to be fouled as compared to conventional electrodes. When the electrode becomes fouled the PE sleeve can be moved to clean the ground glass surface rejuvenating the junction and extending probe life.
HI10482 is a refillable double junction pH electrode. Fill solution from inside the probe will diffuse through the ground glass junction while it is in use and when it is stored in storage solution. Electrolyte fill solution should be added to the probe when the level drops more than 1 cm (1/2”) from the fill hole in order to maintain a good flow rate sustained by having adequate head pressure.
HI10482 has a built-in thermistor temperature sensor that is in the tip of the pH electrode. A thermistor temperature sensor provides 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. Having a built in temperature sensor is important in wine since the measured pH
values are more than 3 pH units away from the isopotential point. The further away from the isopotential point the greater the influence that temperature has on the observed reading.
The average pH of wine influences the choice of calibration buffers that should be used. Generally, most wines have a finished pH between 3 and 4. To ensure a high accuracy measurement, the HI10482 will prompt for pH 3.00 buffer in place of pH 4.01. This allows the calibration to bracket the expected value to be measured.
General Purpose (GP) glass provides the best response over the entire pH range and can be used for a wide range of applications.
Clogging Prevention System (CPS) technology was designed for pH measurements in wine juice and must samples that have a high solids content. CPS technology utilizes a ground glass junction that allows proper flow of the liquid with a PTFE sleeve that repels solids. When the HALO become dirty, the PTFE sleeve can be moved to clean the ground glass surface rejuvenating the junction resulting in a 20x longer electrode lifespan.
HI10482 has a thermistor temperature sensor built into the tip of the pH electrode. A thermistor based temperature sensor provides for a high accuracy temperature reading while being in the tip of the electrode allows for a rapid determination of the temperature as it impacts the effect on the glass membrane potential.
HI10482 is a refillable pH electrode. Fill solution from the inside will diffuse through the ceramic junction as it is used and stored in storage solution. Electrolyte fill solution should be added to the probe when the level drops more than 1 cm (1/2”) from the fill hole in order to maintain a good flow rate sustained by having adequate head pressure.
|Measurement Range||pH: 0 to 12|
|Reference Cell Type||double, Ag/AgCl|
|Junction Type/Flow Rate||open, CPS technology|
|Refill Electrolyte||3.5M KCl|
|Tip / Shape||dome (dia: 8 mm)|
|Max. Pressure||0.1 bar|
|Temperature Operating Range||0 to 80°C (32 to 176°F)|
|Body Length/Overall Length||120 mm / 195 mm|
|Outer Diameter||12 mm|
|Connector Type||Bluetooth Smart (Bluetooth 4.0), 10 m (33′) range|
|Battery Type/Life||CR2032 3V lithium ion / approximately 500 hours|
|Recommended Use||juice, must, samples with suspended solids, wine|
|Notes||Environment: 0.0 to 50.0°C (32.0 to 122.0°F), electronic module is not waterproof|
|Range||-2.000 to 16.000 pH / ±800 mV / -20.0 to 120.0 ºC *(will be reduced to actual probe/sensor limits)|
|Resolution||0.1, 0.01, 0.001 pH / 1, 0.1 mV|
|Accuracy (@25ºC/77ºF)||±0.005 pH / ±0.3 mV|
|Calibration Points||Up to five points with seven standard buffers|
|Calibration Buffers||1.68, 3.00, 6.86, 7.01, 9.18, 10.01, 12.45 pH|
|Temperature Compensation||Automatic from -5.0 to 100.0 ºC / 23.0 to 212.0 ºF *(will be reduced to actual probe/sensor limits)|
|Compatibility/System Requirements||Android: Compatible with most devices equipped with Bluetooth Smart Technology (Bluetooth 4.0) and running Android 4.3 or later.|
iOS: Compatible with iPad (3rd generation or newer), iPhone (4S or newer), iPod Touch (5th generation or newer)
|Download Information||Hanna Lab App is available free from the Play Store or App Store|