Meyve Suyu 0-140 Oe El Tipi Refraktometre (FG 701) Soif VWN1

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0-140 Oe Fruit Juice Handheld Refractometer (FG 701) Soif VWN2

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Precision refractometer for fruit juice °Oe measurement with automatic temperature compensation (ATC)

0-140 °Oe measurement range with 0.1 °Oe minimum scale division
Automatic Temperature Compensation (ATC) for consistent results 0-30°C
Multiple scale options: °Oe, Brix, KMV Babo, mash sugar content
Compact handheld design: 26×40×150 mm, 210g
Optical glass prism with calibration adjustment mechanism
Field-ready with protective eyepiece and cleaning cloth included

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Daha fazla detay

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Daha fazla detay

The VWN1/ATC, VWN2/ATC, and VWN3/ATC series handheld refractometers are designed for rapid and accurate measurement of fruit juice indices. These optical instruments measure refractive index values expressed in °Oe (Oechsle degree), Brix percentage, KMV Babo scale, and mash sugar content depending on model selection. Each model features optical glass prisms with integrated ATC function for temperature-compensated readings across the 0-140 °Oe measurement range.

Technical Specifications

Model	VWN2/ATC
Measurement Range	0-140 °Oe
Minimum Scale Division	0.1 °Oe
Measurement Scales	°Oe (Oechsle degree)
Dimensions (mm)	26×40×150
Weight (g)	210
Temperature Compensation	Automatic (0-30°C)
Optical System	Glass prism with adjustment screw calibration

Applications

Fruit juice quality control and process monitoring
Sugar content determination (°Oe Brix measurement)
Winery and beverage production laboratories
Field testing of juice ripeness and fermentation progress
Food and beverage quality assurance
Agricultural fruit harvest assessment

Frequently Asked Questions

What is the difference between VWN1, VWN2, and VWN3 models?

VWN1 measures °Oe, KMV Babo, and mash sugar (0.5% Brix minimum division); VWN2 measures °Oe only (0.1 °Oe precision); VWN3 measures °Oe and Brix percentage (1% Brix minimum division).

How do I calibrate the refractometer?

Apply 1-2 drops of distilled water to the prism, close the cover, and observe the boundary line between light and dark areas. Adjust the calibration screw until the boundary aligns exactly with the zero mark. Allow calibration liquid and measurement sample to reach thermal equilibrium before use.

Why must calibration and measurement liquids have the same temperature?

Temperature differences affect refractive index readings. If a large temperature differential exists, allow 30 minutes for thermal equilibration before zero adjustment. The ATC function compensates for readings between 0-30°C during measurement.

How should I clean the refractometer?

After each measurement, wipe the prism and cover surfaces immediately. Never rinse with water—clean only with the supplied cloth using pure water. Do not use harsh solvents or contact optical components with hard objects.

What invalidates the manufacturer's warranty?

Use contrary to instructions voids warranty. This includes water rinsing, mechanical shock, corrosive environment exposure, and improper optical component handling.