Semi-Automatic Refractometer DRS90
Measurement of refractive index nD of transparent or translucent liquid and solid substances.
Measurement of the Brix of sugar solution.
Visual aim and LCD display
Automatic correction of the effect of temperature on the Brix.
Prism made of hard glass
The prism is made of hard glass, which is resistant to corrosion and scratches. There are few samples required for measurement, which can satisfy the measurement of precious samples.
The high-precision temperature sensor is used to make the temperature measurement more accurate. The built-in flow cell can be equipped with a dedicated constant temperature water bath to meet the measurement at a constant temperature.
Features
Measurement range:
Refractive index nD: 1.3000-1.7000
Dissolved Solids Brix: 0-95%
Accuracy:
Refractive index nD: £ ±0.0002
Dissolved Solids Brix:: £ ±0.1%
Temperature Range (Min. 0.1°C) : 0-50°C
Correcting range of Brix versus temperature: 15-45ºC
Usage temperature range: room temperature to 35ºC
Weight (Gross): 12 kg
Overall Dimensions: 370mm ´ 240mm ´ 470mm
Specification :
| Parameters/Model | DRS90 |
| Measurement range | Refractive index nD: 1.3000-1.7000 Brix: 0-100% |
| Accuracy | Refractive index nD: ±0.0002 Brix:±0.1% |
| Measuring resolution | Refractive index nD: 0.0001 Brix: 0.1% |
| Temperature Range(Min.0.1C) | 0-50ºC |
| Display | LCD |
| Interface | RS232 |
| Usage temperature range: | room temperature ~ 35ºC |
| Weight(Gross) | 12kg |
| Overall Dimensions | 370mm x 240mm x 470mm |
Reliable, Operator-Guided Refractive Index Measurement with the Semi-Automatic Refractometer DRS90
Achieve accurate and consistent concentration analysis with the Semi-Automatic Refractometer DRS90—a benchtop instrument designed for laboratories requiring precise Brix, refractive index (RI), or custom scale measurements in food & beverage, chemical, pharmaceutical, and academic settings. Combining optical precision with digital convenience, the DRS90 delivers lab-grade results with manual sample application and automatic digital readout—ideal for QC workflows that value method control and traceability.
Engineered for Accuracy, Simplicity, and Standards Compliance
The DRS90 Semi-Automatic Refractometer uses the Abbe refractometer principle with a high-quality optical prism and LED light source for stable, glare-free measurement. The user applies 2–3 drops of sample onto the measuring surface, closes the daylight plate, and the instrument automatically detects the refractive index and converts it to user-selected units (e.g., % Brix, nD, HF, or custom scales) with ±0.0002 RI / ±0.1% Brix accuracy. An integrated Peltier temperature control system maintains the prism at 20°C, 25°C, or user-defined setpoints (±0.1°C) for standardized, repeatable results.
- Measurement Range: 1.3000–1.7000 nD | 0–90% Brix – Suitable for juices, syrups, oils, solvents, and acids.
- High Accuracy: ±0.0002 RI / ±0.1% Brix – Meets ISO 2173 and OIML R133 requirements.
- Automatic Digital Readout – Eliminates eyepiece parallax error; large LCD displays results instantly.
- Peltier Temperature Control (10–50°C) – Ensures compliance with temperature-sensitive standards.
- Data Logging & Connectivity – Stores 1,000+ results; USB/RS232 output for reporting and LIMS integration.
- Chemical-Resistant Sapphire Prism – Durable and easy to clean; resistant to scratches and solvents.
Trusted for Quality Control and Method Validation
From verifying sugar content in soft drinks and checking ethylene glycol concentration in antifreeze to assessing purity of essential oils or monitoring reaction progress in synthesis, the DRS90 bridges the gap between traditional manual refractometers and fully automated systems. Its semi-automatic design ensures operator involvement for sample integrity while guaranteeing digital precision for data records.
Whether you’re in a beverage plant, a chemical QC lab, or a university teaching facility, the Semi-Automatic Refractometer DRS90 offers the perfect balance of control, accuracy, and compliance.
See clearly. Measure precisely. Record confidently.
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