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SKU HI96821 Category

Digital Refractometer for Measuring Sodium Chloride in Food - HI96821

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The HI96821 is a rugged, portable digital refractometer designed for sodium chloride (NaCl) measurement. The HI96821 displays NaCl concentration four different ways: g/100 g, g/100 mL, specific gravity, and °Baume. The instrument’s high accuracy and simple operation gives reliable results each and every time. All readings are automatically compensated for temperature variations and displayed with a 1.5 second response time. The sealed flint glass prism and stainless steel well are easy to clean. Just wipe with a soft cloth in preparation for the next sample.

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 199,00

9 in stock

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The HI96821 portable refractometer converts the refractive index of a food sample to g/100 g, g/100 mL, specific gravity and °Baume. These conversions are based on internationally recognized references for unit conversion. The HI96821 is ideal for the analysis of salad dressings, cheeses, condiments, canned and jarred foods, soups, brines and whey. The HI96821 is an easy to use tool for measuring sodium chloride in foods, whether on the production line or in the lab./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.
Refractive Index

Refractive Index

The HI96821 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 HI96821 uses an LED light, prism and lens to make measurement possible.

Variations in temperature will affect the density of a solution based on the compound that is present. In digital refractometry the use of temperature compensation is necessary for accurate results. The HI96821 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with the ICUMSA Methods Book for a percent by weight sucrose solution.

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 indicator
    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

  • Stainless steel sample well
    Easy to clean and corrosion-resistant

  • IP65 water resistant protection
    Water resistant ABS plastic casing designed to perform under laboratory and field conditions.

Specifications

Specific Gravity (S.G.)

Range

1.000 to 1.216 Specific Gravity

Resolution

0.001

Accuracy

±0.002

g/100 g

Range

0 to 28

Resolution

0.1

Accuracy

±0.2

g/100 mL

Range

0 to 34

Resolution

0.1

Accuracy

±0.2

°Baumé

Range

0 to 26

Resolution

0.1

Accuracy

±0.2

Temperature

Range

0 to 80°C (32 to 176°F)

Resolution

0.1°C (0.1°F)

Accuracy

±0.3°C (±0.5°F)

Temperature Compensation

automatic between 10 and 40°C (50 to 104°F)

Additional Specifications

Minimum Sample Volume

100 μL (to cover prism totally)

Sample Cell

stainless steel ring and flint glass prism

Measurement Time

approximately 1.5 seconds

Battery Type

9V / approximately 5000 readings

Auto-off

after three minutes of inactivity

Refractometer Light Source

yellow LED

Dimensions

192 x 102 x 67 mm (7.6 x 4.01 x 2.6”)

Weight

420 g (14.8 oz.)

Ordering information

HI96801 is supplied with battery and instruction manual

Additional Informations

Additional information

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