תיאור
- Sample size as small as 2 metric drops (100 μl)
- Sealed stainless steel well with high-grade optical prism made of flint glass
- Fast 1.5 second response time for temperature compensated readings
Details
Hanna Instruments new HI96800 Digital Refractometer combines form and function into one compact unit. Featuring a 1.5 second response time, the HI96800 measures refractive index from 1.3330 to 1.5040 with temperature compensation (nD20) and from 1.3300 to 1.5080 without temperature compensation (nD). For added versatility the refractometer also converts refractive index to % Brix (0-85%). One-button calibration makes setup quick and easy.
The improved easy-to-read LCD screen displays temperature units (°C or °F) and measurements simultaneously. By pressing the ‘Range’ key, users can easily switch between refractive index (nD), refractive index (nD20) and % Brix readings while in measurement mode. The HI96800’s IP65 water-resistant casing and sealed sample well is built to perform under harsh conditions, making it suitable for use in the field or in the laboratory.
- 1.3300-1.5080 Refractive Index range with +/- 0.0005 accuracy
- 0-85% Brix range with +/- 0.2% accuracy
- Simple one-button calibration
- Automatic Temperature Compensation (ATC) and No Temperature Compensation Settings (NoTC)
Refractive Index
The HI9680
0 takes measurements based on a sample’s refractive index. Refractive index is a measurement of how light behaves as it passes through the sample. Depending on the sample’s composition, light will refract and reflect differently. By measuring this activity with a linear image sensor, the sample’s refractive index can be assessed and used to determine its physical properties such as concentration and density. In addition to the linear image sensor, the HI96800 uses an LED light, prism and lens to make measurement possible.
Variations in temperature will affect the accuracy of refractive index readings, so the use of temperature compensation is highly recommended for reliable results. The HI96800 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with the ICUMSA Methods Book Standard for a percent by weight sucrose solution at 20°C. These compensation algorithms vary based on the parameter being measured. The user can switch between temperature compensated (nD20), non-temperature compensated (nD) and temperature compensated % Brix readings by pressing the ‘Range’ key while in measurement mode..
Features at-a-glance:
| One-point calibration |
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| Small sample size |
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| Automatic Temperature Compensation (ATC) |
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| Quick, accurate results |
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| Upgraded Dual-level LCD |
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Stainless steel sample well
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| Battery indicators |
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| Automatic shut-off |
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| IP65 water resistant protection |
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Specifications
| Sugar Content Range | 0.0 to 85.0% Brix; 1.3300 to 1.5080 nD; 1.3330 to 1.5040 nD₂₀ |
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| Sugar Content Resolution | 0.1 % Brix; 0.0001 nD; 0.0001 nD₂₀ |
| Sugar Content Accuracy (@25ºC/77ºF) | ±0.2% Brix; ±0.0005 nD; ±0.0005 nD₂₀ |
| Temperature Range | 0 to 80°C (32 to 176°F) |
| Temperature Resolution | 0.1°C (0.1°F) |
| Temperature Accuracy | ±0.3 °C (±0.5 °F) |
| Temperature Compensation | automatic between 10 and 40°C (50 to 104°F) |
| Measurement Time | approximately 1.5 seconds |
| Minimum Sample Volume | 100 μL (to cover prism totally) |
| Light Source | yellow LED |
| Sample Cell | stainless steel ring and flint glass prism |
| Auto-off | after three minutes of inactivity |
| Enclosure Rating | IP65 |
| Battery Type / Life | 9V / approximately 5000 readings |
| Dimensions / Weight | 192 x 102 x 67 mm (7.6 x 4.01 x 2.6”) / 420 g (14.8 oz.) |
| Ordering Information | HI96800 is supplied with battery and instruction manual |
| Warranty | 2 years |
