Hanna Refractometer

Hanna Portable Refractometer

$185.00

This digital refractometer by Hanna Instruments will give you the sugar content of maple sap or maple syrup as % Brix.

Simple two button operation and 1.5 second response time make this digital refractometer the obvious choice for measuring the concentration of Brix. The sealed flint glass prism and stainless steel well are easy to clean and all readings are temperature compensated.

  • Sample size as small as 2 metric drops (100 μl)
  • Sealed stainless steel well with high-grade optical prism made of flint glass
  • Temperature compensated up to 176ºF

INCLUDES:

  • Portable Refractometer
  • Pipette
  • 9 Volt Battery
SKU: HAN-RFCT Category:

Description

The HI96801 portable refractometer by Hanna Instruments 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 sucrose solution. The HI96801 is ideal for the analysis of maple syrup, fruits, energy drinks, puddings, soy milk, juices, jam, marmalade, honey, soups, jelly, and even tofu. The HI96801 is an easy to use tool for measuring sugar in the field or in the lab.

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

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.

Specifications

Sugar Content Range 0 to 85% Brix
Sugar Content Resolution 0.1% Brix
Sugar Content Accuracy (@25ºC/77ºF) ±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)
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 HI96801 is supplied with battery and instruction manual
Warranty 2 years

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°C (104°F). 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

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.

refractive index

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