Operation Manual for Hand-held Refractometer
Model RBX4582 / RBX5890
Product Layout
Specification:
Model:
RBX4582
RBX5890
Measuring Range:
45 ~ 82%
58 ~ 90 %
Display Resolution:
0.5%
0.2%
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
Calibration fluid
Calibration Point
RBX4582
78.8% Sucrose Solution
78.8%
RBX5890
78.8% Sucrose Solution
78.8%
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.
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.
Operation Manual for Hand-held Refractometer
Model RBX4582 / RBX5890
Product Layout
Specification:
Model:
RBX4582
RBX5890
Measuring Range:
45 ~ 82%
58 ~ 90 %
Display Resolution:
0.5%
0.2%
Temperature Compensation: Automatic from 10 to 30degree Celsius.
(ATC model only)
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
Calibration fluid
Calibration Point
RBX4582
78.8% Sucrose Solution
78.8%
RBX5890
78.8% Sucrose Solution
78.8%
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.
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.
Eyepiece
Calibration Knob
Focus Dial
Light Plate
Prism
Eyepiece
Calibration Knob
Focus Dial
Light Plate
Prism
Glass Block
Frosted side of Glass Block
GLass Block
Frosted side of Glass Block
