Digital handheld refractometers
DR101-60, DR201-95 and DR301-95
Digital handheld refractometer DR serie
Digital handheld refractometer DR301-95
Digital handheld refractometer DR201-95
Digital handheld refractometer DR101-60
Digital on-site measurements at the touch of a button
The mobile measurement with a digital handheld refractometer saves time as random checks or the regulation of mixing ratios can be carried out directly on the site. The measurement results are determined at the touch of a button and shown on the display. Unlike in the case of the analogue handheld refractometers, the digital determination
of reproducible measurement results does not depend on the user’s interpretation
- Automatic measurement
- High measuring accuracy
- Fast to fill and clean
- Sample tray made of stainless steel
- Robust housing and low weight
- Automatic temperature compensation (Brix scale)
- Display of the measurement results in different units
- Very simple operation
Typical applications
The digital hand-held refractometers DR101-60, DR201-95 and DR301-95 are the ideal solution for the chemical, petrochemical, automotive, aviation, metal processing and food industry as well as for hospitals and pharmacies.
- Characterisation tests in research and development
- Identity test, purity control and concentration determination of raw materials, semi-finished products and end products
- Tracking of chemical processes during production
- Outgoing goods inspection
- Stability test
- Determination of the sugar concentration
- Incoming and outgoing goods inspection
- Checking medicines for pharmacopeias
- Analysis of body secretions
For a comprehensive overview of typical applications visit our campus review Refractometer applications.
Model specifications
| DR101-60 | DR201-95 | DR301-95 | |
|---|---|---|---|
| MEASUREMENT DATA | |||
| SCALES | Refractive index (nD)
concentration of sucrose, glucose, fructose and invert sugar [%Brix] | Refractive index (nD)
Concentration of sucrose, glucose, fructose and invert sugar [%Brix], salt content [‰], User-defined | |
| MEASUREMENT RANGE | nD 1.3330–1.4419
0–60 %Brix | nD 1.3330–1.5318
0–95 % Brix | |
| MEASUREMENT ACCURACY | nD ±0.0005
±0.35 %Brix | nD ±0.0003
±0.2 %Brix | nD ±0.00015
±0.1 %Brix |
| RESOLUTION | nD 0.0001
0.1 %Brix | ||
| MEASUREMENT PERIOD | approx. 1 s | ||
| MEASUREMENT PRISM | Optical glass | ||
| LIGHT SOURCE | LED | ||
| WAVELENGTH | 589 nm | ||
| TEMPERATURE DATA | |||
| TEMPERATURE COMPENSATION | 10–40 °C | ||
| TEMPERATURE MEASUREMENT | With integrated temperature sensor Pt100 | ||
| TEMPERATURE MEASUREMENT RANGE | 10–40 °C | ||
| TEMP. MEASUREMENT ACCURACY | ±0.5 °C | ||
| TEMP. MEASUREMENT RESOLUTION | 0.1 °C | ||
| FURTHER SPECIFICATIONS | |||
| HOUSING | Synthetic material, coated | ||
| INTERFACES | . | only USB | |
| IP CODE | IP65 | IP64 | IP50 |
| OPERATING VOLTAGE | 1.5 V battery | 9 V battery (mains adaptor incl.) | |
| DIMENSIONS (W X H X D) | 110 mm x 62 mm x 32 mm | 130 mm x 80 mm x 40 mm | 180 mm x 100 mm x 60 mm |
| WEIGHT | 160 g | 200 g | 500 g |
Technical data digital handheld Refractometers (PDF, 128 KB)
DR301-95
As a mobile handheld device or digital tabletop unit, the DR301-95 can measure the refractive index or the sugar content within a measurement range of nD 1.3330–1.5318 or 0–95 %Brix. In addition, the device measures the salt content and allows for the use of two additional freely definable scales. The automatic temperature compensation for the Brix scale can be optionally connected. A USB interface allows you to send measured data to a PC or a printer at any time. An alarm option can be set up for monitoring the limit values in production processes. The provided mains adaptor turns the DR301-95 into a small lab refractometer; for a mobile use it is operated with a 9 V monobloc battery.
