Kern ORA 7WA Manual

Kern Måling ORA 7WA

Læs gratis den danske manual til Kern ORA 7WA (2 sider) i kategorien Måling. Denne vejledning er vurderet som hjælpsom af 33 personer og har en gennemsnitlig bedømmelse på 3.8 stjerner ud af 17 anmeldelser. Har du et spørgsmål om Kern ORA 7WA, eller vil du spørge andre brugere om produktet?

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Side 1/2

CONTENTS

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

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

3 General information 3 .......................................................................................

3.1 Intended use 3 ...................................................................................................

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

4 Basic safety information 4 ...............................................................................

4.1 Follow the instructions in the operating manual 4 .......................................

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

5 Supplied items 5 ................................................................................................

6 Before the ﬁrst use 6 ........................................................................................

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

7.1 Zero point calibration 7-8 ................................................................................

7.2 Additional advice 9 ............................................................................................

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

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

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

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

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

12 Additional information 12 ................................................................................

13 Brix to refractive index

(

)

conversion table 13 ............................................

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

1. Technical data

Models

ERN

Measuring range

and Scales

Scale gradua-

tions Accuracy

Dimensions

Product

Net

weight

ORA 1 WBWA/

0-140°Oe

0-25°KMW (Babo)

0-32% Brix

1°Oe

0,25°KMW (Babo)

0,2% Brix

178x40x40mm 0,145kg

ORA 3 WBWA/

30-140°Oe

0-32% Brix

1°Oe

0,2% Brix

178x40x40mm 0,145kg

ORA 7 WBWA/

0-32% Brix

30-140°Oe

0-25°KMW (Babo)

0,2% Brix

1°Oe

0,2°KMW (Babo)

178x40x40mm 0,145kg

198x40x40mm 0,155kg

KERN & Sohn GmbH

Ziegelei 1

D-72336 Balingen

E-Mail: info@kern-sohn.com

Tel: +49-

[

]

7433-9933-0

Fax: +49-

[

]

7433-9933-149

Internet: www.kern-sohn.com

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 1 WB

Operating manual

Analogue refractometer

Version 1. 0 / 2012 8 8

7. Storage box

8. Pipette

9. Refractometer

10.

Calibration liquid

(Distilled water)

11. Adjustment tool

12. Cleaning cloth

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

[

]

and check that

the rubber eye-cup

[

]

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)

KERN ORA 1 WA/WB Wine

ORA 3 WA/WB Wine

ORA 7 WA/WB Wine

ORA 1 AB / 2 AB Alcohol

ORA 1AB (Volume)

ORA 2AB (Mass)

0-50 % (v/v) / (w/w)

50-80 % (v/v) / (w/w)

% (v/v) / (w/w)

2,5 % (v/v) / (w/w)

Produkt Specifikationer

Mærke:	Kern
Kategori:	Måling
Model:	ORA 7WA

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