Instruction Manual

2
CONTENTS
1. Introduction ……………………………………………... 2
2. Panel Description………………………………………. 3
3. Faceplate & LCD Display……..…….………………….3
4. Operating Instructions
A. General Measurement……..…….………………….4
B. Calibration Procedure……..…….……………….….4
C. Zero Checking……..…….…………………..……....4
5. Parameter Settings
A. Changing Temperature Scale..….………………….5
B. Automatic Temperature Compensation………...…5
C. Scale Selection..….……………………………...….5
D. High/Low Range Limit Alert..….……..…………….5
6. Erratic Readings..….…………………………….……….6
7. Battery Replacement..….………………….…………….7
8. Precautions..….………………………………….……….7
9. Specifications..….………………………….………….….8
10. Warranty..….………………………………...……….….8
1. INTRODUCTION
A Refractometer operates on the principle that, as the con-
centration or density of a solution increases, its refractive in-
dex changes proportionately. The larger the concentration of
dissolved substances in the solution, the higher the reading.
This high precision instrument is designed for laboratory
accuracy. The digital readout eliminates uncertainties, while
the water resistant design facilitates clean ups and protects
the electronics from moist environments. The large display
provides clear readout for measurements and the sample
temperature in addition to their other parameters.
Features include a wide measurement range, automatic
temperature compensation (ATC), °C/°F selectable scales,
high/low range limit alerts, auto shut-off and a low battery
indicator. This Refractometer has built-in Brix% and
nD scales.
WARNING
Do not connect or disconnect the USB cable
while the Refractometer is turned on.