The Abbemat MW digital refractometer enables quick and fully automatic measurements of the refractive index at different measuring wavelengths, e. g. for dispersion and Abbe number determination. For these measurements Abbemat MW can be equipped with up to 8 different wavelengths in the range of 435 nm to 656 nm. This makes the Abbemat MW digital refractometer a versatile instrument for investigations into liquids, polymer bonds and glasses.

Fully automatic spectral refractometry
• Measurement of lenses made of plastic or glass, e.g. contact lenses, lenses for digital cameras
• Quality control of glass and polymers in the production
• Measurement of dispersion and Abbe numbers: V_D, V_d and V_e
Characterization of:
• Liquid immersion oils for microscopes
• Acrylic glass, polaycarbonates, Cycloolefine oligomers
• Optical coatings and adhesives

High performance – reliable results in seconds
• Abbemat refractometers guarantee the highest stability and analytical performance
• The built-in Peltier thermostats ensure the measuring temperature is reached in seconds
• Optimal measurement of the sample temperature just under the prism surface
• Simple cleaning and no sample carry-over due to the smooth transition between prism and sample holder

Flexible in use
• As the refractometer and evaluation unit are separate, Abbemat refractometers can be adapted to suit your application
• For operation under harsh conditions, the evaluation unit is placed a safe distance from the refractometer
• The formula parser creates user-specific scales

Models	Abbemat MW
Measuring range
Refractive index	1.30 nD to 1.72 nD
Temperature	10 °C to 70 °C
Resolution
Refractive index	± 0.000001 nD
Temperature	0.01 °C
Accuracy
Refractive index	± 0.00004 nD
Temperature	± 0.03 °C
Temperature stability	± 0.002 °C
Additional information
Prism material	YAG (Yttrium-Aluminium-Garnet)
Light source	White light LED
Available wavelengths (max. 8 filters)	589.3 nm Na-D (standard)
	435.8 nm Hg-g
	480.0 nm Cd-F'
	486.1 nm H-F
	488.0 nm Ar/Ion
	514.5 nm Ar/Ion
	532.0 nm Nd/Yag
	546.1 nm Hg-e
	632.8 nm He/Ne
	643.8 nm Cd-C'
	656.3 nm H-F'
Minimum sample volume	approx. 0.2 mL
Measuring time per sample	5 seconds (after temp. equilibration / filter change)
Temperature control speed	20 seconds (0.5 mL water at lab conditions to 20.00°C)
Customizable scales	Linear
	Polynomial
	Formula parser
Calibration	One-point calibration
	Two-point calibration
Interfaces	RS-232 (PC)
Wetted parts	YAG, FFKM, PP GF 30, Stainless steel
User interface	PC with Microsoft Windows XP/Vista/7
Dimensions	195 mm x 250 mm x 145 mm
Weight	6 kg

⚬ Basics of refractometry

⚬ Refractometer types

⚬ Дисперсія та число Аббе

⚬ Определение камфоры

⚬ Оптическая активность. Общая презентация

⚬ Показник заломлення жирів, олій та ефірних олій