Digital ABBE Refractometer, RFT-A2S / RFT-A3S

Refractive index and mean dispersion are key optical constants that characterize a material. Precisely measuring the refractive index not only helps identify substance purity and analyze optical performance but also accurately assesses its dispersion properties. Based on this principle, the abbe refractometer can accurately measure the refractive index of liquids at different temperatures. With its wide range of applications, it directly correlates with multiple critical parameters, such as the mass fraction of sucrose solutions, the solid content in soft drinks, and the water content in honey, providing reliable data support for quality control and process analysis.

Features

RFT-A3S/2S

• Utilizing a hard glass prism, it possesses excellent corrosion and scratch resistance.
• Measurements can be completed with only 1-2 drops of sample, making it particularly suitable for the detection of precious or trace samples.
• Using an internationally renowned brand LED light source, it features zero temperature rise, small size, low power consumption, high brightness, and long lifespan, ensuring long-term stable operation and measurement accuracy.
• The instrument employs a specific wavelength of 589nm, combined with an optimized optical path structure, improving measurement accuracy while offering advantages such as ease of operation and rapid aiming.
• Equipped with a high-precision temperature sensor, this instrument achieves more accurate temperature measurements. The built-in flow cell can be used with a constant temperature bath to ensure measurements are performed under constant temperature conditions.

RFT-A3S

• Features a visual aiming system and a color LCD touchscreen, providing a user-friendly and intuitive interface, and allowing for easy data saving.
• Automatic correction of the effect of temperature on the Brix.
• Data can be exported via USB connection to a computer or printed directly via RS232 connection to a printer.
• It is suitable for measuring the refractive index of transparent and semi-transparent liquids and solids, and can be widely used for determining the mass percentage of sucrose, glucose, and F42/F55 fructose syrup, as well as for analyzing the dry solids content and water content of honey in fruit juice, vegetables, soft drinks, canned products.

​

​

Model
	RFT-A3S	RFT-A2S
Refractive index
Range	1.30000nD to 1.72000nD	1.3000nD to 1.7000nD
Max. resolution	0.00001nD	0.0001nD
Accuracy	±0.0002nD	±0.0002nD
Brix
Range	0% to 100%	0% to 100%
Display resolution	0.01%	0.10%
Accuracy	±0.1%	±0.1%
Temperature
Display range	-20℃ to 120℃	0℃ to 50℃
Control range	Controlled by the constant temperature bath	Controlled by the constant temperature bath
Accuracy	Controlled by the constant temperature bath	Controlled by the constant temperature bath
General
Min. sample volume	0.1mL	0.1mL
Prism	Hard glass	Hard glass
Light source	LED	LED
Wavelength	589nm	589nm
Technical data
Display	Color LCD touchscreen	LCD
Internal storage	500 sets of data	/
Communication interface	RS232, USB	RS232
Connect PC	Yes	/
Printer (Optional)	Stylus printer	/
Power supply	220V±22V, 50Hz±1Hz, 30W	220V±22V, 50Hz±1Hz, 30W
Product dimensions (L×W×H)	290mm×180mm×390mm	290mm×180mm×390mm
Package dimensions (L×W×H)	370mm×240mm×470mm	370mm×240mm×470mm
Net weight	10kg	10kg
Gross weight	12kg	12kg