ASTM D1218 Automatic Digital Refractometer
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ASTM D1218 Automatic Digital Refractometer

Brand KN

Product origin Dalian,China

Delivery time deliver as soon as received payment

Supply capacity 30 sets per month

refractive index and refractive dispersion are fundamental physical properties,which can be used in conjunction with other properties to characterize pure hydrocarbons and their mixtures

ASTM D1218 Automatic Digital Refractometer

KN-1218 Automatic Digital Refractometer 


KN-1218 Automatic Digital Refractometer conforms to ASTM D1218 Standard Test Method for Refractive Index and Refractive Dispersion of Hydrocarbon Liquids. and it adopts a high-performance CCD photosensitive parts, It can automatically measure the refractive index(nD) of transparent, translucent, dark, viscous and other types liquid sample, also can measure sugar degree(Brix) of sugar solution. It’s accurate, reliable, fast, easy operation. Full compliance with FDA 21CFR part11. KN-1218 innovative use of cloud service systems, all the data from instrument can update to cloud server, especially for group or government customer. Automatic Refractometer has a wide range of use, within the field of factories, schools and related scientific research institute petroleum, oil industry, etc.



  1. Ultra long life light source, it adopts high brightness LED lights With service life exceeding 100000 hours, less time ready for use, save your cost and time.  

  2. Auto temperature control system, HK-1218 adopts peltier temperature control system, make sure the whole testing with accuracy and constant temperature, accuracy up to 0.02℃

  3. Perfect measuring prism, measuring prism is mad of high hardness, of excellent properties against corrosion and scratches

  4. High performance CCD sensor, adopts high performance CCD Sensor, accurate to the fifth decimal place


Technical Parameters

Refractive index measuring range (nD)1.30000~1.70000
Measured value error (nD)±0.00001
Measurement resolution (nD)0.0001/0.00001
Scope of sugar solution mass fraction (Brix)0~100%
Measured value error (Brix)±0.01
Measurement resolution (Brix)0.1%/0.01%
Temperature control modeBuilt-in peltier
Scope of temperature display0℃~100℃
Temperature control range10~80℃
Temperature control accuracy±0.02℃
InterfaceRS232/USD/Ethernet Interface
Data storage capacity4G
Display modes7 inches, TFT touch screen
Power supply110~240V (12V.10A)
Net weight12kg

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