Digital refractometers without internal temperature control

DR6000

Refractometer DR6200 with temperature compensation - temperature control possible with thermostat

Refractometer DR6200 with temperature compensation - temperature control possible with thermostat

Refractometer DR6000 with circulating themostat PT80

Refractometer DR6000 with circulating themostat PT80

Key features
Applications
Standards
Samples
Key features

DR6000 - Specialists for sugar containing solutions

The DR6000 models are especially suited for highly accurate measurements of products from the sugar industry. Instead of temperature control, the temperature compensation according to ICUMSA can be used. The digital refractometer models DR6000 without internal Peltier temperature control are especially suited for highly accurate measurements of products from the sugar industry. Instead of the temperature control, you can use the temperature compensation according to ICUMSA. There are four model variants available for the different requirements on accuracy, resolution and measuring range, whereby the same operation and functionality can be accessed.

  • Measuring all sugar containing samples
  • Built-in thermostat connections for temperature control with external circulating thermostat
  • Preinstalled and freely definable scales with conversions bases on tables or formulas
  • Chemical-resistant materials such as measurement prism made of sapphire, measuring tray made of stainless steel
  • Intuitive operation via state-of-the-art touch-screen display
  • Complete data recording and backup including audit trail
  • Flexible data export
  • Compliance with global standards and norms
Applications

Typical applications

The refractometers of the DR6000 models are the ideal solution for the sugar industry

  • Determination of the sugar concentration in semi-finished products and end products
  • Determination of the solids content in solutions
  • Determination of the purity in combination with a polarimeter

For a comprehensive overview of typical applications using the DR6000 Series of Digital Refractometers, visit our campus review Refractometer applications.

Standards

Conformity with national and international standards

A big advantage of normalized measurements is the comparability of the measurement results. Refractometers for specific measuring tasks are recommended as suitable measuring instruments in many international standards and guidelines. The requirements for the measuring devices, such as measuring accuracy and measuring temperature, are dependent on the respective measuring task and defined in each standard. We have compiled for you an overview of all known standards and guidelines, which refer to the refractometry.

Association of Analytical Communities (AOAC)
American Oil Chemists’ Society (AOCS)
American Society for Testing and Materials (ASTM)
German Institute for Standardization (DIN)
International Organization of Legal Metrology (OIML)
International Organization of Vine and Wine (OIV)
International Commission for Uniform Methods of Sugar Analysis (ICUMSA)
International Organization for Standardization (ISO)
United States Pharmacopeial (USP)
European Pharmacopoeia (Ph. Eur.)
European Honey Commission (EHC)

Refractometer Standards (PDF, 106 KB)

Any questions?
Get in contact with us, we will assist you in choosing the right refractometer for you.

Samples

All samples are measurable

From bright to dark, from basic to acidic, from a low to a high viscosity – for our refractometers almost all samples are measurable. A high-quality optics, intelligent evaluation logarithms and a powerful LED enable the measurement of particularly challenging samples. These include z. For example, non-homogeneous samples such as fruit juices containing pulp, opaque samples such as heavy oils or emulsions that are common in cosmetics. Aggressive acids and bases can be easily measured using a chemical-resistant stainless steel measuring tray and a sapphire prism. Even foils and solids can be measured by using a high-refractive contact liquid.

In order to serve the existing variety of samples and the wide range of applications, we offer a wide range of different refractometers. For the selection of the suitable refractometer, it is helpful to define the required measuring range.

In the following table we have compiled an overview of typical samples from our customers and sorted them by refractive index. Most samples were measured at standard measurement conditions (20 ° C, λ = 589 nm), deviations are indicated. The measurements given are not specifications.

Refraktometer Samples (PDF, 196 KB)

Any questions?
Get in contact with us, we will assist you in choosing a suitable refractometer.

Model specifications

 DR6000DR6100DR6200DR6300
MAIN SPECIFICATIONS
SCALESRefractive index (nD)
Concentration of sucrose, glucose, fructose and invert sugar [%Brix],
User-defined
MEASUREMENT RANGE nD 1.3200–1.5800
0–95 %Brix
nD 1.3200–1.7000
0–95 %Brix
nD 1.32000–1.58000
0–95 %Brix
nD 1.32000–1.70000
0–95 %Brix
ACCURACYnD ±0.0001
±0.1 %Brix
nD ±0.00002
±0.02 %Brix
RESOLUTIONnD 0.0001
0.1 %Brix
nD 0.00001
0.01 %Brix
TEMPERATURE
TEMPERATURE MEASUREMENTWith integrated temperature sensor Pt100
TEMPERATURE MEASUREMENT RANGE10–80 °C
TEMP. MEASUREMENT ACCURACY±0.1 °C
TEMP. MEASUREMENT RESOLUTION0.1 °C
FURTHER SPECIFICATIONS
TEMPERATURE COMPENSATIONCan be activated
(ICUMSA or freely definable)
MEASUREMENT PERIODapprox. 4 s
MEASUREMENT PRISMSapphire
LIGHT SOURCELED
WAVELENGTH589 nm

Technical data refractometers (PDF, 237 KB)

A strong performance package

A.KRÜSS digital refractometers set new standards in many respects. They deliver fast and reliable measurements, intuitive operation, seamless data logging, flexible data export and compliance with global standards. These and many more features make for a comfortable user experience.

 

Intuitive operation

  • State-of-the-art touch-screen display
  • Uniform operation of all A.KRÜSS laboratory devices
  • Displays measured value in two measurement units
  • Freely assignable speed buttons for the most important functions
  • Easy to understand, menu-guided adjustment
  • Sechs Sprachen auswählbar (de, en, es, fr, it, pt)
 

Fast reliable measurement

  • Measurement of even turbid or highly viscous samples
  • Measurement with manual measurement time input or optimized measurement time thanks to automatic stability recognition
  • Multiple measurements with averaging
  • Statistical analysis
 

Easy filling and cleaning

  • Small sample volume approx. 0.3 ml
  • Manual, semi-automatic or fully automatic sample supply
  • Chemical-resistant materials such as measurement prism made of sapphire, measuring tray made of stainless steel
  • Freely configurable cleaning processes (for devices with flow through functions)
  • Semi-automatic or fully automatic drying (optional)
 

Unlimited number of methods

  • Measurement modes: single, continuous or interval measurements
  • Method parameters such as scales, temperature, temperature compensation, sample supply, limit values, comments
  • Alarm option for monitoring the limit values of standards and samples
  • Pre-defined scales such as %Brix sucrose, %Brix invert sugar, %Brix glucose, %Brix fructose
  • More than 100 additional scales available on request
  • Any number of freely definable scales with conversions based on tables or formulas such as m%, Vol.-%, g/cm³, °Oe, dry substance, salinity and %BRIX
 

Inteligent unser administration

  • Can be activated or deactivated as required
  • DiŽerent authorisation levels
  • Setup of user profiles
  • Customized settings for diŽerent users or work groups
 

Complete documentation of measured values

  • Records all measured data as well as system or method selections in a tamper-proof measured data storage
  • Audit trail for logging configuration changes
  • Data reports with own logo
 

Flexible data export

  • Print-out on serial ASCII printer (real paper)
  • Print-out on network printer in PDF or PS format
  • Print-out as PDF on USB flash drive or to network share
  • Export in HTML or CSV format on USB flash drive or to network share
  • Can be connected to a keyboard, mouse, barcode scanner or external PC in order to use the KrüssLab
  • Easy integration into existing networks (DHCP-Client) or a LIMS
 

Temperature control as required

  • With internal Peltier temperature control
  • With external thermostat temperature control
  • Temperature compensation
 

Compliance with global standards

  • GMP/GLP
  • 21 CFR Part 11
  • Pharmacopoeia (USP, BP, JP, Ph. Eur.)
  • FDA, ISO, HACCP, OIML, ASTM, ICUMSA, NIST
 

Automation with refractometers

The DR6000-TF models with through-flow function, flow-through measuring cell, drying unit DS7060, peristaltic pump DS7070 and autosampler AS80 or AS90 allow for semi- or fully automated operation.

more about automation
 

Temperature control via circulating thermostat

If needed, our DR6000 models can also be temperature -controlled using an external thermostat. The built-in thermostat connections allow you connect, for example, our PT31 or PT80 in next to no time; both are circulating thermostats with built-in Peltier technology. A temperature sensor integrated into the refractometer displays the current sample temperature which can be regulated via the connected thermostat. In this way it is possible to measure nearly all liquids and pastes also with the DR6000 models when the temperature influence on the measurement value is not known and the temperature compensation can not be used.

Circulating thermostat PT80
 

Any Questions?

We will be glad to help.

+49 40 514 317-0

sales@kruess.com

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