Sper scientific 300005 Manuel utilisateur

CLINICAL

REFRACTOMETER

300005

INSTRUCTION MANUAL

SPER

SCIENTIFIC

- 2-

CONTENTS

Introduction ........................................................ 2

Description......................................................... 2

Operating Procedures........................................ 3

Precautions........................................................ 4

Specifications..................................................... 4

Warranty ............................................................ 4

Introduction

Your lightweight portable refractometer is a precision

optical instrument designed to measure urine specific

gravity (UG), serum albumen (SG / protein) and re-

fractive index (Nd). It uses three accurate and gradu-

ated scales that coincide with JSCP regulations. It is

excellent for medical monitoring, scientific research

and quality assurance requirements. Refractometers

operate on the principle that as the concentration or

density of a solution increases, its refractive index

changes proportionately. The refractive angle meas-

ured by your refractometer registers on the scale. The

higher the concentration, the higher the readings reg-

ister on the scale.

Description

Prism (1)

Calibration screw (2)

Cover Plate (3)

Barrel (4)

Eyepiece with focus ring (5)

- 3-

Operating Procedures

1. With the COVER PLATE open, clean the PRISM

with a soft cloth to avoid scratching the surfaces.

2. Aim the refractometer toward a light source and

rotate the EYEPIECE to obtain the clearest focus.

3. Adjustment of the null (reference point):

A. Open the COVER PLATE.

B. Apply a few drops of pure distilled water 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 (calibration line).

4. Carefully dry the prism platform and the cover.

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 of the light and dark hemispheres.

7. The boundary line indicates the concentration of

Urine Specific Gravity and Refractive Index of the

test sample.

8. After use, clean prisms with a cloth and remove

any residue.

9. The temperature of the null reference liquid should

be at the same temperature as the sample solu-

tion. For variations in temperature the null point

should be adjusted once every 30 minutes.

—–

13600

13500

13400

13330

1.050

1.040

1.030

1.020

1.010

1.000

——

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—–

—

—–

—

—–

—

—–

—

—–

—

—–

—

—–

—

—–

—

—–

—

—–

—

—–

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—–

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—–

___

ND SERUM URINE Sp.G

JSCP

Calibration

line

- 4-

Rev. 10/9/06

Precautions

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

the unit’s body. Clean the refractometer after each use

with a soft cotton cloth. Do not scratch surface of the

prisms. Store in a dry, clean, and non-corrosive environ-

ment. Avoid strong shocks.

Specifica-

tions

Serum

Albumen

Urine Spe-

cific Gravity

Refractive

Index

Range 1~12 g/dL 1.000 ~

1.050

1.3330 ~

1.3600

Resolution 0.2 g/dL 0.002 0.0005

Accuracy

±0.2 g/dL ±0.002 ±0.0005

To ensure the highest accuracy,

perform calibration and testing at about

68~77°F (20~25°C).

Size 6 3/4” x 1 1/2" (171 x 38 mm)

Weight 3.1 oz (89 g)

Accesso-

ries

Screwdriver, Carrying Case, Transfer Pi-

pette, Distilled Water, Instruction Manual,

Registration Card.

WARRANTY

Sper Scientific warrants this product against defects in

materials and workmanship for a period of five (5)

years 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

Scientific product will be substituted if available. This

warranty does not cover damage resulting from

accident, misuse, or abuse of the product. To obtain

warranty service, ship the unit postage prepaid to:

SPER SCIENTIFIC

7720 E. Redfield Suite 7, Scottsdale, AZ 85260

WWW.SPERSCIENTIFIC.COM, [email protected]

Please Note: The defective unit must be accompanied

by a description of the problem and your return address.

card within ten (10) days of purchase.

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