User guide

CONTENTS
1. Introduction.................................. 2
2. Panel Description ........................ 3-4
3. Notes and Precautions……………5
4. Calibration ................................... 5-6
5. Measurement .............................. 6-7
• Models with Multiple Scales..... 7-8
• Erratic Readings....................... 8-9
5. Zero Checking.............................. 9
6. Battery Replacement................... 9
7. Specifications .............................. 10-11
8. Warranty...................................... 12
1. INTRODUCTION
Our Pocket Digital Refractometers measure
Brix, salinity or other parameters with
laboratory accuracy. The digital readout
eliminates uncertainties, while the water
resistant design facilitates clean ups and
protects the electronics from moisture.
Features:
• Automatic Temperature Compensation
• Zero Calibration
• Automatic shut off
• Instantaneous reading
- 11 -
7. SPECIFICATIONS (continued)
Model Scale Range Res. Accuracy
Be’ 28~48
0.1% ±0.2%
Water 10~45%
Brix 40~95%
300051 Brix% 0~65% 300052 Brix% 40~95% 300053 Brix% 0~95% 300054
Salinity% 0~28%
Salinity ppt 0~280ppt 1ppt ±2ppt
300055
Cleaner
(14)~(-40)°F
0.1°F ±2.0°F
Ethylene Glycol
(32)~(-50)°F
Propylene Glycol
(32)~(-50)°F
Battery
1.000~1.500sg 0.001sg ±0.005sg
Use pure distilled water as the calibration solution for all models.
300050