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Our state-of-the-art refractometer delivers highest precision measurements throughout the entire product lifecycle. The VariRef² allows multi-point calibration for the most complete measurement range, thus giving you the tools for a fast and economic maintenance at your side. With the VariRefs’s rapid temperature control and adjustable sample compartment, both liquid and solid samples can be measured. All instruments of our VariFamily are connectable to web browsers, e.g. Google Chrome, on your favorable device, smartphone, tablet, or personal computer. Pharma-ready module with 21 CFR Part 11 compliance is available, including all documents, options, and methods.
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More InformationThe VariRef² combines proven SCHMIDT + HAENSCH technology with the modularity of the VariFamily. The new double isolated peltier systems allows fast temperature control and reduces the influence of environment temperature, resulting in rapid and precise measurements. The VariRef² has the well-established SCHMIDT + HAENSCH sample chamber. Its flat shape is ideal for easy cleaning. Different sample chamber covers for liquids and solid samples makes it possible to adapt the device to your application. When dealing with hard-to-clean or hazardous materials we offer a special covered version to ensure a long and reliable product lifespan.
SCHMIDT + HAENSCH refractometers can be used for purity investigations, sample recognition, dilution control or composition. They are also used for characterization of substances or for determination of substance composition, especially of organic liquids or raw materials. With different sample chamber compartment doors it is also possible to measure solid samples which makes it also suitable for other applications, such as quality control of optical films, glass or fibers. Refractometers are also widely used in food, oil, fuel, and other industries to measure and monitor the concentration of components throughout the fabrication process.
The new user-friendly Aquisys3 software can be accessed either using a 7” user interface or remote via Google Chrome on your favorite device, smartphone, tablet or personal computer. As part of the VariFamily the VariRef2 can be used from different users simultaneously, enabling lab managers to handle and sign data, while lab technicians are still measuring.
The VariRef² series comprises the following modules: VariRef² 301, VariRef² 401, VariRef² 501, and VariRef² 601.
| SPECIFICATIONS | VariRef 301 | VariRef 401 | VariRef 501 | VariRef 601 |
|---|---|---|---|---|
| Light source, wavelength | LED, Interference filter 589 nm | |||
| Measuring scales | Refractive Index (RI), Sucrose (Brix), Standard scales included, up to 1000 scales freely definable |
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| Measuring range | 1.3200 – 1.5800 RI / 0 – 100 Brix |
1.30000 – 1.66000 RI / 0 – 100 Brix |
1.27000 – 1.71000 RI / 0 – 100 Brix |
1.27000 – 1.72000 RI / 0 – 100 Brix |
| Accuracy | ± 0.0001 RI / ± 0.05 Brix |
± 0.00003 RI / ± 0.02 Brix |
± 0.00002 RI / ± 0.015 Brix |
± 0.00002 RI / ± 0.015 Brix |
| Reproducibility (Precision) | ± 0.0001 RI / ± 0.05 Brix |
± 0.00001 RI / ± 0.01 Brix |
± 0.000005 RI / ± 0.006 Brix |
± 0.000005 RI / ± 0.006 Brix |
| Resolution | 0.0001 RI / 0.05 Brix | 0.00001 RI / 0.01 Brix | 0.000001 RI / 0.001 Brix | 0.000001 RI / 0.001 Brix |
| Temperature control | Integrated peltier sample temperature control system | |||
| Temperature control range | 5 °C to 80 °C | 5 °C to 80 °C | 5 °C to 100 °C | 5 °C to 100 °C (-5 °C to 105 °C on request) |
| Temperature stabilization time | 25 °C to 20 °C, ±0.1 °C, in 1 minute (valid for ambient temp. = 20 °C) |
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| Automatic temperature compensation | Automatic temperature compensation for Brix according to ICUMSA and other measuring scales with temperature compensation | |||
| Temperature sensor | 4-wire Pt1000 sensor for measurement of sample temperature placed inside the prism | |||
| Temperature sensor accuracy / resolution | 0.1 °C / 0.01 °C | |||
| Ambient temperature | 5 °C to 40 °C | |||
| Minimum sample volume | 600 µL, with insert for micro volume: < 10 µL | |||
| Sample compartment / wetted parts | Sapphire, FFKM, 1.4404 Stainless Steel (Hastelloy on request) | |||
| Housing material | Aluminium | |||
| Interfaces / Communication | Ethernet, RS232, USB (Type A), WLAN (by WLAN adapter) | |||
| Dimensions | With display: 310 x 220 x 250 mm (w x d x h); without display: 310 x 220 x 150 mm (w x d x h) |
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| Weight | 5.5 kg | |||
| Software | Aquisys3 Premium / Aquisys3 Premium Pharma | |||
| Display | Optional: 7″ TFT Touchscreen, 800 x 480 Pixel, 16 Bit colors | |||
| Conformity / Standards | International Pharmacopoeia, ASTM, AOAC, DIN, FDA, ICUMSA and others | |||
| Peripherals / Operation | Optional: Keyboard, Mouse, Barcode Reader, Remote via PC/Tablet/Smartphone | |||
| Power supply | VAC 90 – 265, 50/60 Hz, max. 150 W | |||
Would you like to find out more about the VarRef²’s use, how to setup your instrument or receive a personal training, custom tailored to your needs? – Apply to our Academy Webinars and get ready to use your SCHMIDT + HAENSCH instruments like a pro.
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