KERN ORM 2SU Digital Refractometer
The KERN Digital Refractometer ORM 2SU is a high-precision, professional measuring solution for the fast and reliable determination of sugar concentrations in liquid samples. Developed for use in the food and beverage industry as well as in research, this digital handheld refractometer impresses with its versatility, user-friendliness and outstanding measuring accuracy. The ORM 2SU offers significant advantages over comparable products, especially in demanding environments where fast results and robust devices are required. These include automatic temperature compensation, an averaging function for serial measurements and an IP65-rated housing that guarantees maximum reliability.
Precise measurement technology and robust design
The refractometer works on the principle of total reflection and enables the measurement of relevant sugar types such as Brix, lactose, maltose and dextran with exceptional accuracy. Thanks to its intelligent, compact design, the device is equally suitable for mobile on-site analysis and stationary laboratory use. The technical design is based on high-quality components: the built-in prism made of lanthanum flint glass (ZLaF3, nD = 1.85544) ensures excellent optical properties and consistently high measurement precision. A protective prism cover guarantees long-lasting use even under difficult operating conditions.
Important technical features at a glance
- Measuring principle: Total reflection with digital display
- Measuring ranges:
- Brix: 0.00% - 50.00%
- Lactose: 0.00% - 17.00%
- Maltose: 0.00% - 16.00%
- Dextran: 0.00% - 11.00%
- Division/scaling: 0.1%
- Measuring accuracy: ±0.2% for all scales
- Automatic temperature compensation (ATC) from 0 °C to 40 °C
- Protection class: IP65 (dustproof and protected against water jets)
- Average function: calculation of the average from up to 15 individual measurements
Other features include an energy-saving auto-off function (after 60 seconds), a reliable power supply from alkaline batteries (1.5 V, 1,300 mAh), a compact and lightweight design (dimensions 121 x 58 x 25 mm, weight 0.15 kg) and simple digital operation. The smooth surfaces and removable prism cover make cleaning and maintenance of the device particularly user-friendly.
Calibration is conveniently carried out with distilled water, and ongoing quality controls can be documented by factory calibration (optional, item number 961-290). The CE mark confirms compliance with all relevant European directives for measuring instruments.
Certifications and standards
The ORM 2SU is CE certified and therefore complies with all applicable safety and quality standards for precision measuring instruments. Factory calibration is available on request, offering the laboratory and production further security and traceability.
Specific practical applications
The device can be used in a wide range of professional applications. Typical applications include:
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Quality control in dairies: Determination of lactose and Brix values in milk and dairy products for safe product release and efficient production control.
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Brewing and beverage technology: Precise measurement of maltose content in brewing wort for monitoring and controlling the fermentation process and optimising recipes.
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Confectionery and sugar industry: Checking and adjusting Brix values in sugar solutions, syrups or end products to guarantee the required quality standards.
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Research and development: Detailed analysis of sugar content in experimental approaches or product innovations - for example, investigation of complex mixtures of glucose, fructose or other carbohydrates in the context of food research and biotechnology.
The refractometer is particularly suitable for all liquid media in which reliable sugar content determination - for example, of sucrose, lactose, maltose or dextran - is part of the standard process.
FAQs
How is the device calibrated?
Calibration is performed with distilled water. To do this, a small amount of water is placed on the prism and the zero point is adjusted via the device settings.
What maintenance and care is required?
After each measurement, the prism should be cleaned under running water and gently dried with a soft cloth. This ensures consistently high measurement accuracy and protects the glass from damage.
Can the ORM 2SU be used in wet or dusty environments?
Yes, thanks to its IP65 protection rating, the device is completely protected against dust ingress and water jets, so it can be used without any problems in production environments or laboratories with increased humidity or particle levels.
What types of sugar and measurement parameters are supported?
The refractometer enables measurements of the following types of sugar: Brix (total sugar content), lactose (milk sugar), maltose (malt sugar) and dextran. The parameter can be conveniently selected via the user interface.
Conclusion
The ORM 2SU digital handheld refractometer from Kern & Sohn sets standards in sugar determination in liquids. With maximum precision, automatic temperature compensation, powerful protection against environmental influences and the integration of several scales for different types of sugar, it is the ideal tool for experts in production, quality control and research. Its robust construction and ease of use ensure long-term trouble-free operation - even in demanding, changing areas of application.
