euromex Digital Refractomete User Manual

: June 5, 2024
: euromex

Table of Contents

Introduction
Specifications
Troubleshooting
Maintenance
Important precautions:
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Digital Refractomete
User Manual

Introduction

Thank you for choosing our refractometer. This Is an easy-to-use device, requiring little to no training. Please read the manual before using to ensure optimal measurement

Specifications

Temperature measurement range: OT.40t 132T-104T) Measurement range: Please see the table on the last page
The precision of measurement temperature: tO.ST (1°Fl
Automatic temperature compensation: SIC-40°C i41°F-1041)
Minimum sample volume: 0.3m1
Measuring response tine: s3seconds
Power supply: 2xAAA batteries
Battery life: 25000 readings
Dimension: 145x67x38mm I L x W x H)
Net Weight: /85grams

Auto temperature corn pensation(atc)
The Refractive index is temperature-dependent. The refractometer is temperature-compensated for aqueous (water-based) sucrose solutions and can automatically compensate for temperature differences within the range of 0’C-40’C (321-104IF)
Calibration-zero set
Please refer to the specification table for the calibration solution standard to different measurement items and ranges. The refractometer must be set to zero before initial use and periodically thereafter. The temperature for calibration liquid (distilled water/and the instrument should ideally be near 20t (681)

Inspect the measuring surface to make sure it is clean and dry
Place a few drops of calibration liquids on the prism window
Pass ZERObutton, start calibration at 20″C. If calibration is successful, it will show ‘Pass.’
After the cal [Nation process is finished, the screen will be returned to temperature mode. The calibration result will be saved and will be the new zero point after the device is powered off and on again

Measurement

Make sure the prism surface is clean and dry
Place a few drops of the sample on the prism
Press the READ button, and test results will be shown on the screen. The result(s) will be stored in the device for up to 60 seconds. Press the POWER button to recheck the previous measurements
Clean the sample bath thoroughly after each measurement

Scale selection

Hold the READ button for 2 seconds, the scale will change to the next measurement type. Repeat until desired the scale is shown on the screen
The refractometer saves the last selected scale
Temperature selection
Hold the ZERO button for 2 seconds, the temperature unit will change between Celsius (°C) and Fahrenheit (°F)
The refractometer saves the last selected temperature unit

Resetting

Press simultaneously the POWER and READ button, and the option of returning to the factory settings will be displayed on the screen
Press the ZERO button to confirm resetting or the READ button to cancel

Status

Press the POWER button to turn on and off the device
The device enters into energy-saving mode after standing by for more than 60 seconds. Press the POWER button to wake up the device
The refractometer will turn off after 90 seconds of no operation

Keys (buttons)

Power	i)Turn on the meter; or

ii)Turn off the meter after pressing for 3 seconds
Zero| i)Zero calibration; or
ii)Press for 2 seconds to toggle between °C and °F
Read| i) Press the button to read after drop samples; or
W Press for 2 seconds to toggle between measured items
Power +| Reset to factory setting

Troubleshooting

Out of calibration (zero sets) range Action: Make sure you are using the correct calibration solution, refer to the specification table. Make sure there is a sufficient amount of calibration liquid to cover the prism surface

Maintenance

Warning:

Failure to follow these precautions will void the warranty and may cause instrument damage or inaccurate readings
Please keep the measuring surface clean. After each use, thoroughly clean the measuring surface with a damp, soft, clean cloth or paper or towel. This prevents cross-contamination between samples and provides accurate subsequent readings. Solvent or petroleum-based cleaners are not recommended

Important precautions:

Do not expose the instrument to an environment with too low or too high of a temperature or prolonged exposure of strong direct sunlight
The instrument should be avoided from violent shock
Do not disassemble or assemble the instrument or change the inner parts
Calibration should be implemented strictly according to instruction
Be sure to clean the prism surface and window of the stage before and after every measurement
To avoid that accuracy is affected by evaporation, be sure to implement measurement immediately after dripping solution on the prism
It may cause the wrong result if keep measuring under low voltage
Do not use the instrument in a humid and corrosive environment
During the measurement, please avoid strong light (such as sunlight, lamp etc.)
When storing the instrument for long periods of time, it is advisable to remove the batteries. Use only AAA batteries. Pay close attention to battery polarity when inserting batteries. Reversing the polarity can cause instrument damage

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