KERN ORF-U digital refractometers (industry/automotive)
These compact, digital refractometers are an excellent choice for professionals who want to carry out precise measurements in the automotive and industrial sectors. Thanks to their robust design and IP65 protection rating, users can be sure of reliable results every time - even under demanding conditions. Similar in design to the [KERN Digital Refractometer ORF-S], this instrument offers a wide range of application options and convenient handling thanks to its high-quality TFT color display and Automatic Temperature Compensation (ATC).
Reliable measurement for industrial and automotive applications
In order to professionally test antifreeze, battery fluids or AdBlue solutions, a precise handheld refractometer is indispensable. This model was specially developed for use in the automotive industry and chemical-technical areas. Among other things, it enables the precise determination of AdBlue concentrations, glycol (ethylene and propylene), urea, refractive index and the freezing point of windshield wiper water. The immediate availability of the measurement results and the factory calibration save time-consuming readjustments and quickly ensure reliable interpretation in everyday practice.
Thanks to its large TFT color display, all measurements are easy to read. In addition, the IP65 certification prevents damage from dust and splash water, so that the device remains reliable even in harsh environments. Workshops and production facilities in particular benefit from the high level of user-friendliness and durability, which is reflected in every detail.
Important features and key technical data
- IP65 protection class: ideal for industrial environments and washing areas
- Automatic temperature compensation (ATC): No manual conversion necessary
- Measuring temperature: 5-40 °C for a wide range of applications
- Net weight of approx. 558.21 g: Pleasant to handle
- Operation with 2 × 1.5 V AAA batteries (service life approx. 3,750 measurements)
- Automatic switch-off (AUTO-OFF) after 90 seconds: Saves battery life
- Minimum sample volume: 2 drops for economical use
In addition, depending on the model variant (e.g. ORF 2UM, ORF 5UM or ORF 6US), a wide range of different scales can be covered. With the variants for EG (ethanol-glycol), PG (propylene-glycol), CW (antifreeze for windscreen wiper fluid), BF (battery fluid), urea or refractive index, the refractometer can be optimally adapted to the respective measuring task:
- ORF 2UM and ORF 5UM: Detect -50 °C to 0 °C for glycols (EG/PG) and -40 °C to 0 °C for antifreeze (CW).
- ORF 6US: In addition to urea measurement (0 to 40 %), a range from 1.3330 nD to 1.4100 nD can be covered in the refractive index.
This variety of parameters makes the device highly interesting for a wide range of industries. With the clear color display, users always have all measured values in view, including the current sample temperature.
Typical areas of application
Thanks to the wide scales and intuitive operation, the devices can be used not only in workshops, but also in chemical laboratories, research facilities and industrial production areas. Common applications include:
- Automotive industry for testing coolants and antifreeze, windshield cleaner concentrations and battery fluid
- Chemical industry for the precise determination of various substances such as glycol-water mixtures
- Solar industry, in particular for antifreeze monitoring in heat exchanger systems
- Geothermal energy for measuring brine concentrations in geothermal systems
- Forestry, for example for monitoring the specifics of cooling water in forestry machinery
The monitoring of ethylene or propylene glycol mixtures and urea (urea) is essential in the automotive sector. The device impresses with its simple operation and reliable values.
FAQs
How many steps are required for the measurement
The device is ready for use after just a few steps. Apply the sample, close the cover glass and start the measurement - the result appears on the display.
Does the device need to be calibrated regularly?
The refractometer is already calibrated at the factory. However, a regular check is recommended depending on the frequency of use to ensure absolute measurement accuracy.
What kind of liquids can I measure?
From AdBlue and antifreeze to battery fluids and various glycols, a wide range of liquid samples is covered. Refractive index measurements are also possible.
How is the cleaning carried out
?
Thanks to the IP65 protection class, the device can be rinsed under running water. The measuring surface should then be carefully dried in order to store the device safely.
Conclusion
The digital handheld refractometer combines convenience, robustness and high-precision measurements in a single, low-maintenance device. Professional users in automotive workshops or industry benefit from the fast determination of a wide range of parameters, while the reliable workmanship and IP65 housing ensure durability both in the laboratory and in mobile use. In conjunction with the various measuring scales, the device is a versatile and indispensable companion for anyone who values maximum measurement reliability and ease of use.
