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| Brand | KRUESS |
|---|---|
| Origin | Germany |
| Model Range | DR301-95, DR201-95, DR201-95-OE, DR101-60 |
| Measurement Range | 1.3330–1.5318 nD (DR301-95/DR201-95), 1.3330–1.4419 nD (DR101-60) |
| Brix Range | 0–95 % (DR301-95/DR201-95), 0–60 % (DR101-60), 0–250 °Oechsle (DR201-95-OE) |
| Refractive Index Accuracy | ±0.00015 nD (DR301-95), ±0.0003 nD (DR201-95), ±0.0005 nD (DR101-60) |
| Brix Accuracy | ±0.1 % (DR301-95), ±0.2 % (DR201-95), ±0.25 % (DR101-60) |
| Resolution | 0.0001 nD / 0.1 %Brix (all models) |
| Temperature Measurement Range | –40 to +40 °C (DR301-95), 0 to +40 °C (others) |
| Temp. Accuracy | ±0.5 °C |
| Temp. Compensation Range | 5–40 °C (DR301-95), 10–40 °C (others) |
| Prism Material | Optical glass |
| Housing | Impact-resistant polymer (DR301-95), IP65-rated waterproof casing (DR101-60) |
| Power | 9 V alkaline battery (DR301-95), two 1.5 V AAA batteries (DR201-95 & DR101-60) |
| Dimensions (L×W×H) | 180×100×60 mm (DR301-95), 130×80×40 mm (DR201-95), 110×62×32 mm (DR101-60) |
| Weight | 500 g (DR301-95), 200 g (DR201-95), 160 g (DR101-60) |
| Brand | KRUESS |
|---|---|
| Origin | Germany |
| Model | AR2008 |
| Product Type | Benchtop Refractometer |
| Temperature Control | Yes |
| Digital Display | Yes |
| Refractive Index Range | 1.3000–1.7200 nD |
| Brix Range | 0–95 %Brix |
| Temperature Range | 0–99 °C |
| Refractive Index Accuracy | ±0.0002 nD |
| Brix Accuracy | ±0.1 %Brix |
| Refractive Index Resolution | 0.0001 nD |
| Brix Resolution | 0.1 %Brix |
| Temperature Resolution | 0.1 °C |
| Automatic Temperature Compensation (ATC) | 0–90 °C |
| Interface | RS-232 / RS-422 (9600 baud) |
| Light Source | LED @ 589 nm |
| Power Supply | 110/230 V~, 50/60 Hz, 40 W |
| Brand | KRUSS |
|---|---|
| Origin | Germany |
| Product Type | Handheld Refractometer |
| Model Series | HR-Serie |
| Measurement Principles | Critical Angle of Total Internal Reflection |
| Calibration | Distilled Water or Certified Calibration Plate |
| Temperature Compensation | Manual or Automatic (model-dependent) |
| Optical System | Abbe-type Prism Assembly with High-Grade Optical Glass |
| Compliance | Designed per ISO 21748 (Refractometry — Guidance for the Determination of Repeatability and Reproducibility) and ASTM D1218 (Standard Test Method for Refractive Index of Hydrocarbon Liquids) |
| Brand | KRUESS |
|---|---|
| Origin | Germany |
| Model | AR4 |
| Type | Benchtop Abbe Refractometer |
| Temperature Control | Integrated Peltier-based thermostatic system |
| Readout Method | Analog optical scale via calibrated eyepiece |
| Measurement Range | 1.3000–1.7000 nD |
| Brix Range | 0–95 % |
| Accuracy | ±0.0002 nD / ±0.1 %Brix |
| Scale Division | 0.0005 nD / 0.25 %Brix |
| Light Source | Stable 589 nm LED (Lifespan >100,000 h) |
| Temperature Monitoring | Digital sensor, -40 to +120 °C |
| Power Supply | Dual-voltage auto-switching (110 V / 220 V, 50/60 Hz) |
| Dimensions | 140 × 100 × 235 mm |
| Weight | 4.4 kg |
| Calibration Standard | ASTM D1218-compliant calibration plate |
| Prism Material | High-stability optical glass with refractive index >1.75 |
| Brand | KRUSS |
|---|---|
| Origin | Germany |
| Model | DR6000 |
| Type | Benchtop Refractometer |
| Temperature Control | Peltier-based, 5–90 °C (adjustable to ±0.1 °C) |
| Display | 5.7″ TFT touchscreen (320 × 240 px) |
| Measurement Range | 1.3200–1.7000 nD |
| Brix Range | 0–95 % |
| Refractive Index Accuracy | ±0.0001 nD |
| Brix Accuracy | ±0.1 % |
| Refractive Index Resolution | 0.0001 nD |
| Brix Resolution | 0.1 % |
| Prism Material | Sapphire |
| Light Source | LED @ 590 nm (Lifespan >100,000 h) |
| Sample Chamber | Stainless steel |
| IP Rating | IP65 (sample compartment) |
| Interfaces | RS-232, USB, Ethernet |
| Data Storage | Embedded SQL database (99 user-defined methods, 999 measurement records) |
| Compliance | GLP, FDA 21 CFR Part 11 (with optional user management), ICUMSA-compliant temperature compensation |
| Brand | KRUESS |
|---|---|
| Origin | Germany |
| Model | PRB21 |
| Product Type | In-line refractometer |
| Temperature Control | Yes |
| Digital Display | No (LCD 120×32 px, touch-enabled) |
| Measurement Range | 1.3300–1.5600 nD / 0–95 %Brix |
| Accuracy | PRB-H: ±0.00002 nD / ±0.02 %Brix |
| PRB-S | ±0.0002 nD / ±0.2 %Brix |
| Resolution | PRB-H: 0.00001 nD / 0.01 %Brix |
| PRB-S | 0.0001 nD / 0.1 %Brix |
| Measurement Time | 3–60 s |
| Temperature Range | −10 to 99.9 °C |
| Temp. Resolution | 0.1 °C |
| Temp. Accuracy | ±0.2 °C |
| Temp. Compensation | ICUMSA-compliant |
| Temperature Sensor | PT100 |
| Prism Material | Sapphire |
| Light Source | LED |
| Output Interfaces | RS-232, 0/4–20 mA analog, 1 relay, PROFIBUS (optional) |
| Enclosure Rating | IP65 |
| Supply Voltage | 24 V DC |
| Sample Cell | Stainless steel (316L) |
| Cleaning | Manual access for prism cleaning |
| Compliance | CE, RoHS, ATEX optional |
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