variable temperature laboratory refractometer with full Abbe range


You can purchase online where you see the check mark		Click on the assistant to view the contents of your shopping cart

Automatic Critical Angle Refractometers
with Temperature Control
The ATR-W Series

Features of ATR-W Automatic Refractometers

Measurement of liquids from low to high viscosity
Irrespective of opacity and colour
Electronic and measuring devices separate
Peltier-thermostatisation
Working temperatur +10°C and +80°C
Date and time function
10 user-defi ned scales programmable

Digital automatic high performance refractometer
The new ATR-W1 is designed for measuring the refractive index of liquid media for applications in the quality control of production and laboratory. It consists of an electronic unit and a measuring head. A sample volume of 0.3 ml is suffi cient for measuring. The ATR-W1 disposes of a Peltier thermostatisation and a large temperature working range between +10°C and +80°C. It’s new housing for the electronic offers more space for a bigger LCD display and an alphanumeric foil keypad. Batch numbers can be entered directly and also simple forms can be created and printed out. 10 special scales, one of them beeing programmed as Brix scale by the factory, provide a wide range of application possibilities in production and laboratory. The software of the ATR-W1, designed close to the practice, allows to determine mean values and standard derivation and directs the Peltier thermostatisation for highly precise measurements without delays.

Refractometry and Concentration
Refractometers are widely used to measure the amount of dissolved substances in solutions containing mainly sucrose. The relationship between refractive index and the amount of dry substance content is well known for sucrose and is the basis of the Brix scale which is measure of the number of grams of sucrose present per 100 grams of aqueous sugar solution. (50 Brix means 50 grams of solid per 100 gm of solution) This relationship holds for a large number of similar substances and so the Brix scale is widely used in the food industry. Unfortunately the refractive index of a sugar solution changes with temperature while its solid content remains the same. ( The same refractive index at different temperatures correspond to different Brix values.)
T

Applications of Refractometers include:

Chemicals	Solvents, organic polymers, distilled products, solutions of inorganic compounds, pesticides, suds
Agriculture	Ripeness of fruits, vegetables, beet and sugar cane.
Food Industry	Yogurt, jam, fruit extract, syrup, honey coffee extract, vegetable albumen, chocolate, milk, baby food.
Beverage Industry	Soft drinks, fruit juice, wine, beer,
Medical	Serum, blood, urine
Pharmaceutical	Essences, essential oils, aromas.
Petrochemicals	Oils, fats, waxes, naphthalene, raw oils, varnishes, paints

Specifications for ATR-W1 and ATR W-1 Plus automatic Refractometers

Ordering Information

Model	Description	Price USD
ATRW2	Automatic temperature controlled refractometer	call