VEE GEE BX-3 User Manual

Range: Brix 60.0-92.0%
Resolution: 0.2%
Accuracy: ±0.2%
Dimensions: 40 x 40 x 140mm (1.6 x 1.6 x 5.5”)
Weight: 230g (8.1 oz.)
Supplied With: Vinyl Carrying Case (1), Plastic Transfer Pipet (1)
Optional Oil Standard: Brix 60.0%, ¼ oz. Bottle (cat. no. 45000-OS025)
Printed in China
VGMNL010320-43005
Operation Manual
Model BX-3
Brix 60-92%
Specifications
Cat. No. 43005
Temperature Correction Table
For Refractometers Calibrated At 20°C (l=589nm)
Source: ICUMSA, 1
974
As an alternative to recalibration of the refractometer due to ambient temperature changes, the following temperature
correction table can be used. Ensuring that both the distilled water and the ambient temperature are both at exactly 20°C,
follow steps 2-7 under the CALIBRATION section on the preceding page. Once this is accomplished, if ambient temperature
changes, simply apply the temperature correction values listed below. For example, a reading of Brix 40.0% at 25°C is
corrected to Brix 40.4%; a reading of Brix 65.0% at 10°C is corrected to Brix 64.25%.
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registration form can be found at:
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VEE GEE BX-3 Specifications

General

Scale	Brix
Brix Range	0-32%
Accuracy	±0.2%
Display	LCD
ATC	10-30°C
Measurement Range	0-32% Brix
Resolution	0.2% Brix
Power Supply	2 x AAA batteries

Summary

Temperature Correction Table

Correction Table

Table providing temperature correction values for refractometer readings based on ambient temperature.

VEE GEE Specifications

Refractometer Components

Rubber Hood

Protects the focusable lens and prevents ambient light entry during use.

Calibration Ring

Mechanism for zeroing or calibrating the refractometer without extra tools.

Non-Roll Stand

Prevents instrument damage when placed down between measurements.

Daylight Plate & Prism

Covers the prism and sample during readings.

Rubber Grip

Provides insulation against hand heat for accurate results.

Calibration Ring Set Screw

Secures the calibration ring to prevent shifts during use.

Calibration Procedure

Apply Liquid Standard

Apply one or two drops of liquid standard onto the prism surface for calibration.

Close Daylight Plate

Close the daylight plate, ensuring the liquid standard covers the entire prism surface evenly.

Adjust Focus

Adjust the eyepiece to bring the scale into focus by turning it clockwise or counterclockwise.

Verify Calibration Point

Confirm the boundary line crosses the scale at the correct calibration point (e.g., '85').

Adjust Calibration Ring

Loosen the calibration ring and adjust it until the boundary line is at the correct calibration point.

Final Wipe

Gently wipe the prism with tissue paper after calibration is complete.

Precautions

General Use

Apply Sample Solution

Apply one or two drops of sample solution to the prism surface, holding it at an angle.

Close Daylight Plate

Gently close the daylight plate, ensuring the sample covers the prism surface evenly.

Adjust Focus

Adjust the eyepiece to bring the scale into focus by turning it clockwise or counterclockwise.

Read Brix Value

Read the Brix% value where the boundary line of blue and white fields crosses the scale.

Clean Prism

Clean the prism using tissue paper and water after each measurement.