Hanna Instruments pHep5 pH tester and temperature meter HI98128
As a versatile measuring device for the professional sector, this model impresses with precise and practical pH and temperature determinations. Instead of using costly separate measuring devices or laboratory-intensive methods, this portable tester can be used to carry out a quick and reliable analysis. Similar to the [Hanna Instruments pH Tester HI98107], users benefit from simple operation and a compact design, which makes everyday measurements much easier.
Precision and convenience for demanding measurements
With its waterproof and floatable housing, the tester is particularly robust and suitable for demanding operating conditions. It covers a pH measurement range from -2.00 to 16.00 and therefore offers a wide range of applications in food control, drinking and waste water analysis, research laboratories, agriculture and hydroponics.
An automatic one- or two-point calibration allows quick adjustment to different buffer solutions. At the same time, the integrated automatic temperature compensation ensures that temperature deviations are always compensated for. The intuitive display with stability and battery status indicator offers safety at every measuring step, while the HOLD function enables convenient reading.
The replaceable pH electrode with pull-out textile diaphragm offers a special advantage: the electrode can be cleaned by regularly pulling out the diaphragm, thus maintaining measurement accuracy for longer. As soon as the diaphragm is worn out, the entire electrode (HI73127) can be easily replaced. This makes the tester particularly economical and durable.
- pH measuring range: -2.00 to 16.00
- Resolution: 0.01 pH
- Accuracy: ±0.05 pH
- Temperature compensation: Automatic (-5.0 to 60 °C)
- HOLD function for measured value backup
- Waterproof housing with automatic switch-off
- Easily replaceable pH electrode HI73127
In addition, the device is CE-compliant and offers additional safety thanks to battery error detection (BEPS). The integrated automatic switch-off function (after eight minutes of non-use) increases battery life and prevents accidental discharging.
Concrete applications in the laboratory and in practice
- Drinking water quality control: Precise measurement of the pH value is essential in waterworks to ensure optimum water treatment and monitoring
- Agriculture and hydroponics: Fertilizers and pH-active additives (such as nitric acid or barite) are often used in the cultivation of crops. Precise monitoring of the pH value makes a significant contribution to successful growth here.
- Food production: For manufacturers of beverages, dairy products or fermented foods (e.g. yoghurt), compliance with narrow pH limits is an important quality factor.
- Wastewater analysis: pH values are continuously monitored in wastewater treatment plants in order to comply with permitted limit values and optimize purification processes.
- Aquaristics and laboratory tasks: Whether in research laboratories or aquariums, accurate pH measurements are essential to create stable and healthy experimental or living conditions.
FAQs
How often should the tester be calibrated?
Regular calibration - about once a week or after every 10 to 15 measurements - ensures that reliable measured values are available. This is essential, especially with changing or demanding samples.
Does the electrode need to be cleaned after every measurement?
Cleaning with deionized water or suitable cleaning solutions after each use is recommended. In the case of stubborn deposits, the textile diaphragm should be carefully pulled out to remove impurities.
How do I know if the electrode needs to be replaced?
If the textile diaphragm is completely used up or the electrode no longer provides accurate readings despite thorough cleaning, it should be replaced. The replacement can be carried out in just a few simple steps thanks to the special plug-in system.
Is special storage required
The pH electrode should always be stored in storage solution so that the sensitive diaphragm does not dry out and the reaction times and measurement accuracy are maintained.
Conclusion
With its wide pH measuring range, waterproof design and convenient handling, the Hanna Instruments pHep5 pH tester and temperature meter HI98128 is a powerful and durable measuring device for professional users. The fast calibration, the robust design and the exchangeable pH electrode increase efficiency in everyday laboratory work as well as in industrial practice. At the same time, the automatic temperature compensation, the reliable stability display and the compact dimensions make the device an ideal partner for on-site analysis.
