Refractive Index Refractometers

VEE GEE® X-Series Handheld Refractometers are exceptionally simple to operate and provide quick, accurate measurements for the concentration of nearly any aqueous solution. Easy to Use. Operation consists of placing 1 or 2 drops of sample on the prism, closing the daylight plate over the sample, then looking through the focusable, cushioned-rubber eyepiece for the readings. Accurate. Featuring the largest, easiest-to-read scale available with clear, sharp figures, screen shading, and incredible contrast. These features significantly enhance overall accuracy even when several differe...

Determination of concentration and purity control of liquid media with high or low viscosity and solids Simple handling Small sample volume necessary Can be temperature controlled by a circulating thermostat bath The classic ABBE-Refractometer AR12 The SCHMIDT+HAENSCH ABBE refractometer AR12 is a classic, visual refractometer, named after its inventor Ernst Abbé and designed for the determination of the refractive index of liquid media with high or low viscosity. It is used in the fast control of liquids and the “in-field analysis”. The refractometer is e...

Compact, Single Instrument Design Teflon® Prism Well Insert For Testing Organic Solvents Accuracy Up To ±0.02 Brix / ±0.00003 R.I. Automatic Temperature Compensation The ATR-ST Series Automatic Refractometers from Schmidt+Haensch offer the core features of the higher-end ATR-Series instruments, but at an economy budget level. The price performance ratio of these refractometers is exceptional. The small footprint of the single instrument design will easily fit in any laboratory. All models feature a removable Teflon® prism well insert. This feature is exceptio...

Benchtop Abbe Precision Liquid & Solids Testing Brix & Refractive Index Scales The VEE GEE Model C10 Abbe Refractometer is an excellent instrument for the Refractive Index (nD) analysis of liquids, glass, plastic, & film. Easy to Use. Operation consists of placing a sample on the prism; while looking through the eyepiece, the control knob is turned until the shadowline is centered in the crosshairs; the reading is taken where the vertical line crosses the scale. Calibrates with water. Industrial Features. Oversized, easy-to-read scale; Refractive In...

The PDX models are built around an industry-leading, high-resolution (2048 pixels) linear CCD sensor and extra-large, menu driven LCD display. The rugged construction of these refractometers will provide years of reliable use. The water-resistant design allows them to be used in humid or harsh conditions; the stainless-steel sample well stands up to even corrosive samples. To further ensure accurate testing the PDX models can be easily programmed with high and low limits. If a measurement falls outside of the target range, the red LED alarm and LCD will flash to quickly alert the operat...

Separate Sensor & Control Modules For Ultimate Precision Continuous Flow-Through Or Funnel Flow-Through Options Accuracy Up To ±0.02 Brix / ±0.00002 R.I. Connects To External Circulators For Accurate Temperature Control The ATR-SW Series Automatic Refractometers from Schmidt+Haensch offer the most advanced features and performance available in an analytical instrument. The separate stainless steel sensor module is extremely robust and chemically resistant against most aggressive media and external temperature variation and is airtight. Separate modules ensure...

Separate Sensor & Control Modules For Ultimate Precision Electronic Peltier Temperature Control (+10 to +80°C) Accuracy Up To ±0.02 Brix / ±0.00002 R.I. Wide Brix & R.I. Ranges The ATR-W1 Series Automatic Refractometers from Schmidt+Haensch offer the most advanced features and performance available in an analytical instrument. The separate stainless steel sensor module is extremely robust and chemically resistant against most aggressive media and external temperature variation. Separate modules ensure precise temperature control and enhanced reproducibili...

ATRW-2: Specifications Measuring Range - RI 1.33200 - 1.70000 Measuring Range - Brix 0.00 - 95.00% Resolution - RI 0.00002 Resolution - Brix 0.02% Accuracy - RI ±0.00004 Accuracy - Brix ±0.04% Optical Wavelength 589.3nm Measuring Light Source LED Sensor Linear Hi-R...

The PDX models are built around an industry-leading, high-resolution (2048 pixels) linear CCD sensor and extra-large, menu driven LCD display. The rugged construction of these refractometers will provide years of reliable use. The water-resistant design allows them to be used in humid or harsh conditions; the stainless-steel sample well stands up to even corrosive samples. To further ensure accurate testing the PDX models can be easily programmed with high and low limits. If a measurement falls outside of the target range, the red LED alarm and LCD will flash to quickly alert the operat...

In modern times this formula isn’t used as frequently, since the development of high-accurate refractometers made it possible to measure R.I. differences at a resolution of 0.00001. However, information regarding R.I. values at other wavelengths is lost. By accurately measuring samples at 7 separate wavelengths, the DSR-λ effectively takes R.I. measurements to the “fingerprinting” level. Many chemically different solutions may exhibit similar R.I. values at the traditional 589.3nm (sodium) wavelength. However, when a spectral-analysis takes place at the R.I. level, the key differences can b...