Sper scientific 300001 Manuale utente

Sugar/Brix

Refractometer

0 - 32%

300001

28 - 62%

300002

Instruction Manual

Prism

Calibration screw

Cover Plate

Barrel

Eyepiece with focus ring

INTRODUCTION

Your portable refractometer is a precision optical instrument

designed to measure the concentration of sugar in aqueous

solutions. It utilizes a Brix scale that is accurate and easy

to read. It is excellent for quality assurance, process control

requirements, and research. Refractometers operate on the

principle that as the concentration or density of a solution

increases, its refractive index changes proportionately. The

refractive angle measured by your refractometer registers on

the scale. The larger the concentration of sugar in solution,

the higher the reading on the scale.

DESCRIPTION

CONTENTS

INTRODUCTION ............................................................ 2

DESCRIPTION................................................................ 2

OPERATING PROCEDURES........................................ 3

PRECAUTIONS .............................................................. 4

SPECIFICATIONS .......................................................... 4

WARRANTY .................................................................... 4

OPERATING PROCEDURE

1. With the COVER PLATE open, clean the PRISM with a

soft cloth to avoid scratching the surface.

2. Aim the refractometer toward a light source and rotate

the EYEPIECE to obtain the clearest focus.

3. Zero Point Calibration:

A. Open the COVER PLATE.

B. Apply a few drops of the included calibration solution

onto the PRISM platform.

C. Close the COVER PLATE.

D. Turn the CALIBRATION SCREW until the dark and

light boundary line coincides with the bottom line

of the scale. The bottom line is 0 for 300001 Model

and 28 for 300002 Model.

4. Carefully dry the prism platform and COVER PLATE.

5. Place a few drops of the test solution on the prism and

close the COVER PLATE so the solution spreads evenly

on the prism.

6. Aim the front of the refractometer towards the light

source and focus the eyepiece on the boundary line.

7. The boundary line indicates the concentration of sugar in

the test sample at 20°C.

8. After use, clean the prism with distilled water and a cloth

to remove any residue.

9. The temperature of the zero point calibration should

be at the same temperature as the test solution. For

variations in temperature the zero point should be

adjusted once every 30 minutes.

15% Sample (300001)

20°CBrix%

45% Sample (300002)

20°CBrix%

PRECAUTIONS

Never submerge the unit, and do not let liquid seep into the

unit’s body. Clean the refractometer after each use with a soft

cotton cloth. Do not scratch surface of the prism. Store in a dry,

clean, and non-corrosive environment. Avoid strong impacts.

IMPORTANT NOTE...

This Sugar/Brix Refractometer is intended for solutions

containing sugar solute. Any test solutions that contain salt

will a󰀨ect the reading.

SPECIFICATIONS

Model 300001 300002

Range 0-32% 28-62%

Resolution 0.2%

Accuracy ±0.2%

Size 6 3/4” x 1 1/2"

(171 x 38 mm)

6 1/4” x 1 1/2”

(159 x 38 mm)

Weight 3.1 oz. (89 gr.) 3.2 oz. (90 gr.)

Calibration Solution Distilled Water 28% Brix

Accessories

Screwdriver, Carrying Case, Transfer Pipette, Manual.

WARRANTY

Sper Scientic warrants this product against defects in

materials and workmanship for a period of ve (5) year from

the date of purchase, and agrees to repair or replace any

defective unit without charge. If your model has since been

discontinued, an equivalent Sper Scientic product will be

substituted if available. This warranty does not cover probes,

batteries, battery leakage, or damage resulting from accident,

tampering, misuse, or abuse of the product. Opening the

meter to expose its electronics will break the waterproof seal

and void the warranty. To obtain warranty service, ship the

unit postage prepaid to:

SPER SCIENTIFIC LTD.

8281 E. Evans Rd., Suite #103

Scottsdale, AZ 85260

(480) 948-4448

The defective unit must be accompanied by a description of

the problem and your return address. Register your product

online at www.sperwarranty.com within 10 days of purchase.

Rev 12/6/2017

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