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This state-of-the-art refractometer, the VariRef, delivers high-precision measurements throughout the entire product lifecycle and supports multi-point calibration for a wide measurement range and efficient maintenance. The VariRef’s fast temperature control and adjustable sample compartment allow for precise measurement of both liquid and solid samples.
Easy to use
The new double-insulated Peltier system enables fast temperature control and minimizes the impact of ambient conditions, ensuring rapid and precise measurements. The VariRef features SCHMIDT + HAENSCH’s proven flat sample chamber design, making it easy to clean and maintain.
Different sample chamber covers for liquids and solids allow the device to be adapted to your specific application. For hard-to-clean or hazardous materials, a special covered version is available to ensure long-term reliability.
Features of the refractometer
- Liquid and solid samples
- Modular and connectable to network
- Multi-point calibration for full measurement range
- User friendly
- Fast temperature control
- Rapid measuring results
- Easy cleaning
- Maintenance free
- 21 CFR Part 11 Conform
- ELN, LIMS ready
Applications
SCHMIDT + HAENSCH refractometers are ideal for purity checks, sample identification, dilution control, and substance characterization. They are especially suited for analyzing organic liquids and raw materials to determine composition.
With interchangeable sample chamber covers, the device can also measure solid samples, making it suitable for additional applications like quality control of optical films, glass, or fibers.
Refractometers are widely used in the food, oil, fuel, and other industries to monitor and control component concentrations during the manufacturing process.
Specifications of the refractometer
VariRef C |
VariRef B |
VariRef A |
|
Measuring scales |
Refractive Index (RI), Sucrose (% Brix) Standard scales included, freely definable scales |
Refractive Index (RI), Sucrose (% Brix), USG | |
Measuring range |
1.2900 – 1.5800 RI / 100% Brix | 1.29000 – 1.58000 RI / 100% Brix 1.32000 – 1.70000 RI / 100% Brix |
1.320000 – 1.580000 RI / 100% Brix |
Precision |
± 0.0001 RI* / ± 0.05% Brix* | ± 0.00002 RI* / ± 0.02% Brix* | ± 0.00002 RI / ± 0.02% Brix* |
Repeatability |
± 0.0001 RI / ± 0.05% Brix | ± 0.00002 RI / ± 0.02% 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 |
Ambient temperature |
+ 10 °C to + 40 °C | ||
Temperature measurement |
NTC sensor | ||
Temperature range |
5 °C to 80 °C | 5 °C to 100 °C | 20 °C (others upon request) |
Temperature precision / resolution |
± 0.03 °C* / 0.01 °C | ||
Minimum sample volume |
0,6 ml | ||
Temperature stabilization time |
25 °C to 20 °C, ± 0.1 °C, in 1 minute (valid for ambient temp. = 20 °C) | ||
Measurement mode |
Single sample or flow through measurement (with optional compartment door) | ||
Prism |
Sapphire | Sapphire / YAG | Sapphire |
Light source / wavelength |
LED, interference filter 589 nm | ||
Display |
7” Touchscreen**, 800 x 480 Pixel | ||
Operation |
Touchscreen**, Keyboard***, Mouse***, Barcode Reader***, Remote via PC / Tablet / Smartphone*** | ||
Interfaces |
Ethernet 10/100/1000, RS232, SH connector, USB, WLAN**, Modbus**, Canbus**, Profibus** | ||
Conformity |
International Pharmacopoeia, ASTM, AOAC, DIN, FDA, ICUMSA and others | ||
Power |
VAC 90-265; 50/60 Hz; 150 W max. | ||
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) | ||
Highlights |
Modularity; user friendliness; fast temperature control; easy cleaning; variety of complete special sample room doors, e.g. for single or flow through measurements or for solid samples; the self-checking capabilities for cleanliness; environment temperature effects; calibration and more result in a virtually maintenance free product; 21 CFR Part 11 conform; ELN; LIMS ready | ||
** Optional
*** not included in delivery
