A.KRÜSS Optronic Digital Refractometers T-Model
Versatile and powerful!
Digital laboratory refractometers from A. Krüss Optronic are setting new benchmarks on many counts. An intuitive touchscreen presents a clear overview of all data and functions and the integrated SQL database stores all data and allows external access via a network or standalone PC. The refractive index is a parameter in quantitative or qualitative analysis and quality assurance. Degrees of polymerisation can also often be monitored frequently, quickly and cost-efficiently without turbidity or the colour of the sample affecting measurement precision. There is no longer any elaborate preparation of samples necessary. The sample is simply placed on the measuring prism and the measurement process is started. The flat stainless steel plate is easy to clean and is highly resistant to aggressive substances. As the refractive index depends on the temperature of the sample, the refractometer should be tempered. The DR6000 series is thus available with integrated electronic temperature control by means of a Peltier element. This type of temperature control is faster and more reliable than water bath thermostats. For continuous measurements or series of measurements with many samples and high volumes of samples, devices with flow measurement cells are available. A sample can thus displace the previous one, nonetheless achieving an accurate measurement result without cleaning the measuring prism after every measurement. The DR6000 series of refractometers are robust, low- maintenance and also very quiet - an often underestimated quality for equipment used continuously in a laboratory. An integrated SQL database stores up to 99 user-defined measurement methods and the last 999 measurement values with all associated data. You can select the stored results by means of various filters and export data iXLS- or CSV-format on a USB flash drive, print directly or convert to a PDF document for printing from a PC. By connecting a printer to the RS-232 interface, results can be printed out as soon as they are measured. The refractometer can be connected to a PC or linked to a network via an Ethernet interface. If there is access to the Internet, remote maintenance and fault diagnosis are also possible. Optional user management functionality with three authorisation levels protects the settings from being changed unintentionally. The DR6000 series thus meets all GLP requirements and is best suited for use in FDA-regulated situations. Special KrüssLab software also enables the instrument to be controlled from a PC. This exactly replicates the intuitive touchscreen of your Krüss unit, allowing you to "operate" it directly from the PC. Measured values are copied from the device into the KrüssLab database. You then have permanent access to more than the last 999 results. This data can be accessed even when the Krüss unit is switched off. The refractometers in this series meets the guidelines of ASTM D1218 and D1747.
TF-Model: with integrated electronic Peltier thermostat AND flowcell
TF models are a combination of T- and F-models
The flow cell is a variation of the DR6000 series and is indicated by the suffix "F" (e.g. -F, -TF). It consists of a measuring cell cover fixed with robust stainless steel brackets over the prism, with two tubes for inflow and outflow. All parts that come into contact with the sample (tubes and measuring cell cover) are made of PTFE (Teflon). Combined with the sapphire prism equipped with a Peltier thermostat, precise and stable temperature control is assured. The UNF-thread hose coupling is made of PEEK. The flow cell allows the unit to run in automated mode using a peristaltic pump or autosampler. It can also be filled by means of injection if required. Thanks to its special geometry (forced venting), no air bubbles can become trapped. As a result of the small size of the micro-measuring cell, this version is particularly suitable for applications in which it is important for samples to be in small volumes (e.g. in the flavourings industry). The measuring cell can be removed easily and the sample thus placed directly on to the prism.
Fields of application
Determination of mixing ratios, quality and quantity inspection in the following industries:
- Beverages
- Food
- Sugar / sweeteners
- Chemicals
- Flavours
- Petrochemicals
- Cosmetics / hygiene
- Metalworking
- Pharmaceuticals
- Water / effluent
- Education / research
- Purity control
- Quality control
Special features
- Bright touchscreen display with intuitive operation in 6 languages
- Very efficient integrated Peltier temperature regulation with high precision (T-Models)
- Fast and easy cleaning of the probe
- High resolution LED with 100.000 hour service life
- Very quiet operation
- Compact powder-coated metal housing
- 99 different methods and customer tables (individual tables can be set)
- Data display of all important settings and measurements
- User management functionality (password-protected) can be activated
- Integral SQL database for data storage
- USB interface for data export and firmware updates and for connecting keyboard or barcode scanner
- RS-232 interface for serial printer
- Ethernet interface for direct connection to a PC (with possibility of remote maintenance via internet)
- PDF-export
- Direct printing possible on a PostScript-enabled network printer
- Full cGMP/GLP capability: password protection, data backup, automatic printout or data output in CSV-format
- Meets the relevant international standards such as Pharmacopoeia, OIML, ASTM
- NIST-compliant calibration certificate
- IQ/OQ/PQ-commissioning possible
- Extremely low maintenance and long life
- 3 year warranty with registration
Main measuring display
This is where the measurement is carried out and the results as well as the important parameters are displayed.
- Measured value: refractive index, %Brix, user-defined unit
- Target and actual temperature
- User
- Method
- Temperature compensation
- Status information
Mode and method menu
In the mode menu any user can adjust settings.
- Single or interval measurements
- Mark measurements as QC measurements
- Define sample numbers
Where the user administration function has been activated, only administrators can make changes in the method menu.
- Name of method
- Unit
- Target temperature
- Temperature compensation (ICUMSA or user-define)
Results menu
The last 999 measurements are stored in the results menu along with all associated settings and parameters. Columns can be displayed or hidden and the results filtered, printed or exported.
- Date and time
- Method
- User
- Sample number
- Target and actual temperature
- Measured value
- Unit
- etc.
