Brix RBX4582 Operation Manual

Operation Manual for Hand-held Refractometer
Model RBX4582 / RBX5890
Product Layout
Prism

Specification:

Model:
Measuring Range:
Display Resolution:
Temperature Compensation: Automatic from 10 to 30degree Celsius.
(ATC model code ending with "A")

Calibration:

1. Calibration should be made in an ambient environment of 20degree Celsius.
2. Open the Light Plate & place a tiny drop of calibration fluid in the center of the
prism.
Model
RBX4582
RBX5890
3. Use the provided Glass Block and place the frosted side of block on the
center of prism where the fluid is. Ensure the water is spread across the entire
surface of the Glass Block. There must not be any bubbles or dry spots on
the glass block, which is cause by too little liquid use.
Frosted side of Glass Block
4. Wait for about 30 seconds, this is to allow the temperature compensation to
take place.
5. Hold the meter in the direction of light source and look into the Eyepiece.
6. Adjust the Focus Dial until image is clear and sharp. Each person has his
own focusing adjustment.
7. Remove the rubber cap on the Calibration knob, with the use of the provided
trimming tool and adjust it until the bottom line of the darkest blue section is at
the brix scale reads precisely the Calibration Point above. Disregard faint or
white lines
8. Calibration Completed.
9. Rinse the Glass Block and Prism with water and wipe them with soft lint-free
clothes before proceeding with measurement.
Light Plate
RBX4582
45 ~ 82%
0.5%
Calibration fluid
78.8% Sucrose Solution
78.8% Sucrose Solution
Glass Block
Calibration Knob
Focus Dial
RBX5890
58 ~ 90 %
0.2%
Calibration Point
78.8%
78.8%
Eyepiece