Product

Optical Devices

Precision Refractometers

Manual refractometer KPR type

KPR-30V Precision Refractometer

NEW!!
For Development and Quality Control of Glass and Plastics!

KPR-30V Precision Refractometer

Features

Previous manual refractometers (Shimadzu KPR-2) offered an angle display only. The refractive index corresponding to the angle had to be looked up in a special table. With the KPR-30V, the measured angle is read by the PC, which automatically calculates the refractive index. The encoder reads angles in 1-second increments, achieving high accuracy equivalent to a higher class of visually read instrument.
The use of a refractive liquid between the sample and the V-block prism allows measurement with a frosted surface if the two faces are machined to 90o.

Applications

Refractive index measurements for transparent liquids and transparent samples, such as new materials and glass.

Extensive Options

Up to ten wavelengths can be added, allowing the user to select the required wavelengths. (Note 1)
Unique control software simplifies operation for the user. (Note 2)
Note 1 : Some wavelength combinations may be unavailable.
Note 2 : Not included in unit cost.

Operation Screens

The Windows-based control software offers easily understood, graphical operations.

Specifications

Measurement range Refractive index measurement: 1.25 to 2.00
(No.1 prism: 1.25 to 1.70; No.2 prism: 1.50 to 2.00)
Measurement accuracy Refractive index: ±0.00005 (at 23oC room temperature) * Note 1
Repeatability Refractive index: ±0.00002 (at 23oC room temperature) * Note 1
Measurement
wavelength range		 435.8 nm to 643.9 nm
Measurement wavelength Standard
d-line    587.6nm He lamp
C-line    656.3nm H2 lamp
F-line    486.1nm H2 lamp
Options
g-line    435.8nm Hg lamp
e-line    546.1nm Hg lamp
C' line    643.9nm Cd lamp
F' line    480.0nm Cd lamp

* Note 1:

Parallax between the Hg g-line and H2 F-line during visual measurement may result in reduced accuracy due to concurrence errors.

The system can be customized to your requirements. Consult your Shimadzu representative.

　

Two other models are also available:

KPR-30A Abbe type refractometer (for measuring thin samples and thin film)
KPR-30P Pulfrich type refractometer

page top