A.KRÜSS Optronic Brochure Refractometer
A.KRÜSS Optronic Brochure Refractometer, English PDF document.
View resource →Product overview
The DR6000-TF series uses a CCD sensor and Peltier temperature control. Its flow cell works with a drying unit, peristaltic pump and autosampler for automatic filling, measurement and discharge.
Models and core specifications
| Model | Refractive-index range | Measurement accuracy | Resolution |
|---|---|---|---|
| DR6000-TF | nD 1.3200–1.5800; 0–95 %Brix | nD ±0.0001; ±0.1 %Brix | nD 0.0001; 0.1 %Brix |
| DR6100-TF | nD 1.3200–1.7000; 0–95 %Brix | nD ±0.0001; ±0.1 %Brix | nD 0.0001; 0.1 %Brix |
| DR6200-TF | nD 1.32000–1.58000; 0–95 %Brix | nD ±0.00002; ±0.02 %Brix | nD 0.00001; 0.01 %Brix |
| DR6300-TF | nD 1.32000–1.70000; 0–95 %Brix | nD ±0.00002; ±0.02 %Brix | nD 0.00001; 0.01 %Brix |
Advantages
Automatic sample supply and measurement
- A CCD sensor, sapphire flow-through cell and Peltier control support automatic refractive-index measurement.
- A drying unit, peristaltic pump and autosampler enable an automated supply, measurement and discharge workflow; select peripherals for the required process.
- Sample-contact parts are sapphire, PTFE and stainless steel; 0.5 ml filling quantity and approximately four-second measurement after temperature equalisation.
Scales and temperature control
- Four models differ in refractive-index range, accuracy and resolution; sucrose, glucose, fructose, invert-sugar and user-defined scales support concentration conversion.
- Integrated Peltier sample control: 10–80 °C, ±0.1 °C accuracy; integrated Pt100 temperature sensor.
- ICUMSA or freely definable temperature compensation can be activated.
Operation and data management
- Stand-alone operation with firmware and a 7.0-inch, 800 × 480 capacitive touchscreen; keyboard, mouse and barcode-scanner operation.
- USB, RS-232 and Ethernet interfaces; DHCP network and LIMS integration.
- Firmware functions for data recording and storage can support electronic-record management in workflows involving 21 CFR Part 11 and EU GMP Annex 11; applicability requires validation of the system configuration and intended workflow.
Technical data
| Item | Specification |
|---|---|
| Scales | Refractive index nD; sucrose, glucose, fructose and invert-sugar concentration (%Brix); unlimited user-defined scales |
| Measurement period | Approx. 4 s after temperature equalisation |
| Measurement prism | Sapphire |
| Light source | LED, 589 nm |
| Sample volume/filling quantity | 0.5 ml |
| Components in contact with the sample | Sapphire, PTFE and stainless steel |
| Operation and display | Stand-alone device including firmware; 7.0-inch capacitive touchscreen, 800 × 480 pixels; keyboard, mouse and barcode-scanner operation also possible |
| Data integrity | Supports electronic-record retention and traceability in workflows involving 21 CFR Part 11 and EU GMP Annex 11; applicability depends on the functions, configuration and system validation |
| Interfaces | 1 × USB, 1 × RS-232 and 1 × Ethernet; network or LIMS integration |
| Temperature control | Integrated Peltier sample-temperature-control system |
| Temperature-control range | 10–80 °C |
| Temperature-control accuracy | ±0.1 °C |
| Temperature compensation | Activatable ICUMSA or freely definable compensation |
| Temperature measurement | Integrated Pt100 temperature sensor |
| Temperature-measurement range | 10–80 °C |
| Temperature-measurement accuracy | ±0.1 °C |
| Temperature-measurement resolution | 0.1 °C |
| Housing and protection class | Powder-coated aluminium; IP20 |
| Dimensions (W × H × D) | 215 × 150 × 345 mm |
| Weight | 5 kg |
| Operating voltage | 90–240 V |
| Power consumption in measuring mode | 40 W |
| Rated frequency | 47–63 Hz |
| Adjustment | Menu-guided adjustment; certified, traceable calibration standards available separately |
Notes: measurement accuracy is specified at λ = 589 nm, 20 °C, 1013 hPa and 50% relative humidity; the temperature-control range applies under non-condensing ambient conditions; the measurement period applies after temperature equalisation.
Application areas
For high-volume routine analysis, raw-material and finished-product purity testing, and sugar-concentration measurement in flavour, fragrance, essential-oil, pharmaceutical, beverage, food and sugar applications.
Calibration standards
The official page lists refractive-index calibration standards at nD 1.3400, 1.3900, 1.4300, 1.4800, 1.5300 and 1.5800 (25 °C); each must be purchased separately according to the calibration requirements.
Related accessories and consumables
- Transparent protective cover and sample cover.
- Peristaltic pump.
- CBM910 matrix printer with interface cable, paper rolls and ink ribbon.
Service support
- Experienced specialists provide product selection, application and operation support.
- Calibration, maintenance and maintenance contracts can be discussed as required.
Selection guidance
The four models differ primarily in refractive-index range, accuracy and resolution. Selection should also consider sample throughput, drying-unit, peristaltic-pump and autosampler requirements, data integrity and interfaces.