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The KERN ORA refractometers are universal, maintenance-free analogue handheld
refractometers. The handy and robust design allows the easy, efficient and sustainable use in everyday life. Manually calculated conversions and errors of the user are avoided by multiple selectable scales.
These scales are especially developed, exactly calculated and checked. They are also
characterized by their thin and clear lines. The optical system and the prism cover are made of special material which allows a low-tolerance measuring.
All ORA models are equipped with an eyepiece for easy and smooth setting for many different diopter strengths. The models marked with “ATC” have an automatic temperature compensation which enables accurate measurement at different ambient temperatures (10 °C/30 °C)
The following accessory-parts are included:
- Storage box
- Calibration liquid
- Calibration block (if required)
- Pipette
- Screwdriver
- Cleaning tissue
Further accessories are optionally available
Technical data
Die-cast housing of copper-aluminium alloy, chrome coated
Measurement temperature without ATC: 20 °C
Measurement temperature range with ATC: 10 °C/30 °C
Dimensions of the box: 205×75×55 mm (depending on the model)
Product length: approx. 130 – 200 mm (depending on the model)
Net weight approx. 135 – 600 g (depending on the model)
Scope of application: Salt
The following models are particularly suitable for the measurement and concentration control of the mass fraction of natrium chloride in water as well as of the content of NaCl (salt) in water. This is often used in the preparation and the cooking of sauces, bases for pastries, the production of brines (e.g. for white cheese) and the preparation of seafood and marinades for meat.
The main scope of applications is:
Food industry
Aquarist : Fish keepers/Fish farmers in sea and Sweetwater
Restaurants and large-scale catering establishment
Data Sheet