Description
The portable refractometer HI96821 translates a food sample’s refractive index to g/100 g, g/100 mL, specific gravity, and °Baume. These conversions are based on widely accepted unit conversion references. For the analysis of salad dressings, cheeses, sauces, canned and jarred foods, soups, brines, and whey, the HI96821 is perfect. Whether in the lab or on the manufacturing line, the HI96821 is a simple to use instrument for determining the salt chloride content of foods. /p>
- Designed for sodium chloride analysis in foods
- Automatic Temperature Compensation
- High accuracy measurements in g/100 g, g/100 mL, specific gravity and °Baume
Making a Standard NaCl Solution (g/100 g)
To make an NaCl Solution, follow the procedure below:
- Place container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.
- Tare the balance.
- Weigh out X grams of high purity dried Sodium Chloride (CAS #: 7647-14-5: MW 58.44) directly into a beaker
- Add distilled or deionized water to the beaker so the total weight of the solution is 100g.
Example 10g/100 g NaCl:
| NaCl (g) | Water (g) | Total (g) |
| 10.000 | 90.000 | 100.000 |
Refractive Index
The refractive index of a sample is used by the HI96821 to obtain measurements. The refractive index gauges the behavior of light as it travels through the sample. Light will refract and reflect differently depending on the makeup of the sample. The refractive index of the sample can be examined by measuring this activity with a linear image sensor and utilized to ascertain its physical characteristics, such as concentration and density. The HI96821 enables measurement through the employment of an LED light, prism, and lens in addition to a linear image sensor.
Refractometry values will be impacted by temperature variations, hence temperature correction should always be used for accurate findings. The temperature compensation methods in the HI96821, which are designed in line with widely accepted references and differ depending on the parameter being measured, are integrated into the device’s built-in temperature sensor.
Features at-a-glance:
One-point calibration
- Calibrate with distilled or deionized water
Small sample size
- Sample size can be as small as 2 metric drops (100 μl)
Automatic Temperature Compensation (ATC)
- Samples automatically compensated for temperature variations
Quick, accurate results
- Readings are displayed in approximately 1.5 seconds
Dual-level LCD
- The dual-level LCD displays measurement and temperature readings simultaneously
Stainless steel sample well
- Easy to clean and corrosion-resistant
Battery indicators
- Battery percent level remaining at startup and low battery indicator
Automatic shut-off
- To conserve battery life the meter shuts off automatically after three minutes of non-use
IP65 water resistant protection
- Water resistant ABS plastic casing designed to perform under laboratory and field conditions.
| SKU | HI96821 |
|---|---|
| Product Name | Digital Refractometer for Measuring Sodium Chloride in Food – HI96821 |
| Quote Required | Yes |
| Specific Gravity Range | 1.000 to 1.216 Specific Gravity |
| Specific Gravity Resolution | 0.001 Specific Gravity |
| Specific Gravity Accuracy | ±0.002 Specific Gravity |
| Sodium Chloride Range | 0 to 28 g/100 g; 0 to 34 g/100 mL; 0 to 26 °Baume |
| Sodium Chloride Resolution | 0.1 g/100 g; 0.1 g/100 mL; 0.1 °Baume |
| Sodium Chloride Accuracy | ±0.2 g/100 g; ±0.2 g/100 mL; ±0.2 °Baume |
| 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 0 and 40°C (32 to 104°F) |
| Automatic Shut-Off | after three minutes of inactivity |
| Battery Type/Life | 9V / approximately 5000 readings |
| Dimensions | 192 x 102 x 67 mm (7.6 x 4.01 x 2.6”) |
| Weight | 420 g (14.8 oz.) |
| Refractometer Light Source | yellow LED |
| Minimum Sample Volume | 100 μL (to cover prism totally) |
| Sample Cell | stainless steel ring and flint glass prism |
| Measurement Time | approximately 1.5 seconds |
| Ordering Information | HI96821 is supplied with battery and instruction manual |
| Notes | Enclosure Rating |
