Hanna Instruments Digital Ethylene Glycol Refractometer HI96831

Beschreibung

Hanna Instruments Digital Ethylene Glycol Refractometer HI96831

Precise determination of the antifreeze level of coolants is essential in many industrial areas and workshops. The measuring device presented here allows fast, accurate and, above all, uncomplicated analysis of ethylene glycol solutions. Thanks to its uncomplicated handling and high measuring accuracy, it is an effective alternative to other methods. Similar models such as the [Hanna Instruments Digital Propylene Glycol Refractometer HI96832] are also a useful option if there are specific requirements for measuring other glycol variants.

Full description

This digital refractometer was specially developed for determining the volume content of ethylene glycol and the associated freezing point. With a wide measuring range from 0 to 100 % volume content and a response time of around 1.5 seconds, the device enables rapid assessment of the degree of frost protection and helps to maintain the service life and reliability of vehicles and systems.

The automatic temperature compensation is particularly noteworthy: this largely eliminates measurement errors that can occur due to temperature fluctuations on the sample. The measuring range for the freezing point extends from 0 to -50 °C and therefore covers a wide range of applications – both in motor vehicles and in industrial cooling and heating systems. The housing was manufactured in accordance with IP65 standards and is therefore splash-proof, allowing it to be used in demanding conditions.

The integrated 9 V battery operation ensures flexible use on the move. The device achieves an average of around 5000 operating hours with one battery, which reduces downtime. The automatic switch-off function after three minutes also conserves energy. Thanks to the yellow LED and stainless steel measuring cell with glass prism, high measurement stability is guaranteed.

– Measuring range: 0-100 % volume content
– Freezing point: 0 to -50 °C
– Resolution: 0.1 % / 0.1 °C
– Accuracy: ±0.2 % / ±0.5 °C
– Automatic temperature compensation from 0 to 40 °C
– IP65-protected housing
– At least 2 drops required per measurement

In practice, the stainless steel ring with glass prism simplifies the application of the sample: a small amount of sample (about two drops) is sufficient to obtain a meaningful measurement. The reading is digital and therefore does not require complex scale interpretation. This ensures that the results can be interpreted quickly, even with frequent measurements in an operational environment.

Certifications and standards

The robust housing meets the IP65 protection class, which protects the device against dust and water. This is a decisive advantage, especially in damp working environments such as car workshops. In addition, the built-in components are designed for durability and precision. In many technical user circles, Hanna Instruments products are regarded as established measurement standards.

Application examples

1. Car workshops: For regularly checking the level of antifreeze in cooling systems to prevent engine damage due to insufficient antifreeze protection.
2. Industrial cooling circuits: For reliable determination of the ethylene glycol concentration in process cooling systems to ensure correct working temperatures.
3. Heating and air conditioning technology: Measurement of the freezing point in frost protection circuits within heat pump systems or solar systems.
4. Laboratory analysis: In laboratories working with coolants in the field of research and development, the exact volume content of ethylene glycol can play a role when it comes to safe and reproducible test conditions.

The typical use is therefore in the automotive sector and in operational contexts that need to ensure efficient frost protection. Ethylene glycol is usually the basic component of conventional coolants, for example in mixtures with water, in order to optimize heat transport properties.

FAQs

How often should the refractometer be calibrated

?

As a rule, calibration at longer intervals, such as once a month, or whenever the measuring environment changes significantly, is sufficient. For particularly precise applications, however, a tighter test interval density is recommended.

Can it also be used to measure other liquids?

The device is designed in particular for ethylene glycol solutions. Other liquids can be measured, but deviations in accuracy may occur as soon as they differ physically from glycol-based antifreezes.

What sample size is required?

About two drops are sufficient – the device can provide precise measured values even with this small sample quantity.

How robust is the device in harsh working environments?

Thanks to the IP65-protected housing, the measuring device largely keeps out splash water and dust. It is therefore well suited for workshop and industrial applications and is easy to clean.

Conclusion

This easy-to-use, precise digital refractometer is a reliable choice when cooling systems with ethylene glycol need to be kept at the optimum freeze protection level. In addition to its fast response time and automatic temperature compensation, its robust design and long battery life are particularly impressive. Anyone looking for reliable measurement solutions that are precisely tailored to their needs will achieve very good results with this instrument in the long term.