MODEL: VARIREF
Checkpoints
- 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 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.
SPECIFICATION
| 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 (W x D x H) | With display: 310 x 220 x 250 mm; Without display: 310 x 220 x 150 mm | ||
| 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 solid samples). Self-checking capabilities for cleanliness, environmental temperature effects, calibration, and more result in a virtually maintenance-free product. 21 CFR Part 11 conform, ELN, LIMS ready. | ||
* Standard conditions (589 nm, ts=20°C, tA=23°C)
** Optional
*** not included in delivery
