Zebra ZD621d Handleiding

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1. Technical data

Models

KERN

Measuring

range and

Scales

Scale

graduations

Accuracy

Dimensions

Product

Net weight

ORA 10 BBBA/ 0-10 % Brix0,1 % Brix189x40x40mm0,155kg

ORA 18 BB0-18 % Brix0,1 % Brix189x40x40mm0,155kg

ORA 20 BBBA/ 0-20 % Brix0,1 % Brix189x40x40mm0,155kg

ORA 32 BBBA/ 0-32 % Brix0,2 % Brix178x40x40mm0,145kg

ORA 80 BB0-80 % Brix0,5 % Brix137x40x40mm0,135kg

Operating manual

Analogue Brix Refractometer

KERN & Sohn GmbH

KERN ORA 10 ORA 32 BA/BB BA/BB

ORA 18 BB ORA 80 BB

ORA 20 BBBA/

Ziegelei 1

D-72336 Balingen

E-Mail: info@kern-sohn.com

Tel: +49-[0]7433 - 9933-0

Fax: +49-[0]7433 - 9933-149

Internet: www.kern-sohn.com

GB

2. Description

1. Prism cover

2. Prism surface

3. Adjustment screw

4. Eyepiece with rubber eyeshade

5. Diopter adjustment ring

6. Optical tubes with rubber grip

Example scale on

ORA 18 BB

2

4

5

3

6

1

Version 1. 0 / 2012 49

CONTENTS

1 Technical data.................................................................................................1

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

3 General information3 .......................................................................................

3.1 Intended use3 ...................................................................................................

3.2 Warranty..........................................................................................................3

4 Basic safety information4 ...............................................................................

4.1 Follow the instructions in the operating manual4 .......................................

4.2 Warning ........................................................................................................4-5

5 Supplied items5 ................................................................................................

6 Before the first use6 ........................................................................................

7 Use/measurement ........................................................................................6

7.1 Zero point calibration7-8 ................................................................................

7.2 Additional advice9 ............................................................................................

7.3 Measuring procedure ...............................................................................9-10

8 Cleaning and maintenance 11 ........................................................................

9 Storage ........................................................................................................11

10 Service ........................................................................................................12

11 Disposal ........................................................................................................12

12 Additional information12 ................................................................................

13 Brix to refractive index (nD) conversion table13 .........................................

14 Annex ........................................................................................................14

7. Storage box

8. Pipette

9. Refractometer

10. Calibration liquid

(Distilled water)

11. Adjustment tool

12. Cleaning cloth

6

5

3

4

3.General information

3.1 Intended use

The refractometer is a measuring instrument for determining the refractive index of

transparent substances in the liquid or the solid state. It is used to observe the

behaviour of light as it passes from a prism with known properties to the substance

being tested.

Use of the refractometer for other purposes is contrary to its intended use and may

be hazardous. The manufacturer shall not be liable for any damages caused

by improper use.

3.2 Warranty

The warranty shall be void in the event of:

▸ Failure to observe the instructions in the operating manual

▸ Use for purposes other than those described

▸ Modifications or opening the device housing

▸ Mechanical damage and/or damage resulting from media, liquids,

natural wear and tear

4.Basic safety information

4.1 Follow the instructions in the operating manual

▸ Carefully read through the operating manual even if you have prior

experience with KERN refractometers.

▸ Every language version includes a non-authoritative translation.

The original German document is the definitive version.

4.2 Warning

▸ Do not let acids come into contact with skin or eyes. If acid comes into contact

with skin, flush with copious amounts of water. Shower if larger areas of skin are

affected.

▸ If acid comes into contact with eyes, keep the eyelid open and flush the eye with

running lukewarm water from the outer corner to the inner corner. Flush eyes for

at least 15 minutes. Then consult a doctor or ophthalmologist immediately.

▸ Thoroughly clean the refractometer aer each use.

▸ The refractometer must not be exposed to extreme temperatures, high

mechanical stresses, strong direct sunlight or high humidity.

▸ This refractometer is not a toy. Keep out of reach of children.

▸ Make sure that you will not be hit by anything else while you are using the

refractometer, as this could cause serious eye injuries

▸ The rubber eyeshade may cause irritation when in prolonged contact with the

skin. If this happens, consult your doctor.

▸ Do not touch the lenses with your fingers.

6.Before the first use

Remove the protective film (if present) from the prism surface [2] and check that

the rubber eye-cup

[4] is fitted correctly.

7. Use/measurement

The refractometer can be used to quickly and accurately determine the refractive

index of transparent substances, liquid or solid ones. To ensure correct measure-

ment, the measuring device should be adjusted before measurements are carried

out. Please make sure your hands are dry before handling the measuring device.

5.Supplied items

Aer unpacking and before using the device for the first time, check that all

listed parts have been supplied. Replace damaged or faulty parts immediately

and do not put them into operation.

▸ Refractometer

▸ Storage box

▸ Pipette

▸ Adjustment tool

▸ Cleaning cloth

▸ alibration Cliquid (Distilled water)

!The refractometer cannot be used for the measurement of oil-based fluids.

Product specificaties