Digital Refractometer for Brix Analysis in Foods

Description

The HI96801 portable refractometer converts the refractive index of a food sample to % brix. This conversion is based on the tables found in the ICUMSA Methods Book (International Commission for Uniform Methods of Sugar Analysis) that documents the changes in refractive index with temperature for a percent by weight glucose solution. The HI96801 is ideal for the analysis of fruits, energy drinks, puddings, soy milk, juices, jam, marmalade, honey, soups, jelly, tofu and condiments. The HI96801 is an easy to use tool for measuring sugar in food samples in the field or in the lab.

Designed for food sugar analysis
Temperature Compensation algorithms based on sucrose solution
0 to 85% brix range with an accuracy of ±0.2%

Making a % Standard Sucrose Solution

To make a Sucrose 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 sucrose (CAS #: 57-50-1 directly into a beaker
Add distilled or deionized water to the beaker so the total weight of the solution is 100g.
Note: Solutions above 60% may need to be vigorously stirred or shaken and heated in a water bath to roughly 40℃ (104℉). Remove solution when sucrose has dissolved and allow to cool before use.

Example to prepare as 25% sucrose solution:

% Brix	Sucrose (g)	Water (g)	Total (g)
25	25.000	75.000	100.000

$refractive index$

Refractive Index

The HI96801 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 HI96801 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 HI96801 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 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

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.

Additional information

Weight	0.57 kg
Temperature Accuracy	±0.3 °C (±0.5 °F)
Temperature Range	0 to 80°C (32 to 176°F)

Specifications

SKU	HI96801
Name	Digital Refractometer for Brix Analysis in Foods – HI96801
Sugar Content Range	0 to 85% Brix
Sugar Content Resolution	0.1% Brix
Sugar Content Accuracy	?0.2% Brix
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)
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 Info

HI96801 is supplied with battery and instruction manual