Operating manual
Analogue Brix Refractometer
KERN
ORA 10 BA/BB ORA 32 BA/BB
ORA 18 BB ORA 80 BB
ORA 20 BA/BB
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
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 ( nD ) conversion table ......................................... 13
14 Annex
........................................................................................................ 14
1. technical data
1 Technische Daten
Mo d e lle
Mes s bereic h
Models
Measuring
K E R N
KeRn
range and
O R A
0 -‐1 0 % Brix
1 0 B B
Scales
O R A
0 -‐1 8 % Brix
1 8 B B
oRA 10 BA/BB
0-10 % Brix
O R A
0 -‐2 0 % Brix
2 0 B B
oRA 18 BB
O R A
0-18 % Brix
0 -‐3 2 % Brix
3 2 B B
oRA 20 BA/BB
O R A
0 -‐8 0 % Brix
0-20 % Brix
8 0 B B
oRA 32 BA/BB
0-32 % Brix
oRA 80 BB
0-80 % Brix
Beispiel der Skala für den ORA 18 BB
Example scale on
ORA 18 BB
2 Gerätebeschreibung
3
2
2. Description
2 Gerätebeschreibung
1
3
3
2
1. Prismenabdeckung
2. Prismenfläche
3. Justierschraube
4. Okular mit Gummi-Augenmuschel
1
5. Einstellring des Diopters
6. Optische Röhre mit Gummigriff
1. Prismenabdeckung
2. Prismenfläche
8
3. Justierschraube
4. Okular mit Gummi-Augenmuschel
5. Einstellring des Diopters
6. Optische Röhre mit Gummigriff
7
8
7. Aufbewahrungsbox
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
Betriebsanleitung
Analoges Brix Refraktometer
KERN
ORA 10 BB
ORA 18 BB
ORA 20 BB
ORA 32 BB
ORA 80 BB
Version 1.0
12/2014
Tel: +49- [ 0 ] 7433 - 9 933-0
Fax: +49- [ 0 ] 7433 - 9 933-149
Internet: www.kern-sohn.com
ORA_10_18_20_32_80BB-BA-d-1410
S kalen-‐
Abmessungen
Nettogewicht
Scale
Produkt
Dimensions
und
t eilung
S kalen
Genauig keit
graduations
Product
0 ,1 % Brix
189x40x40mm
0,155kg
Accuracy
0 ,1 % Brix
189x40x40mm
0,155kg
0,1 % Brix
189x40x40mm
189x40x40mm
0,155kg
0 ,1 % Brix
0,1 % Brix
0 ,2 % Brix
178x40x40mm
189x40x40mm
0,145kg
137x40x40mm
0,135kg
0 ,5 % Brix
0,1 % Brix
189x40x40mm
0,2 % Brix
178x40x40mm
0,5 % Brix
137x40x40mm
4
5
1. Prism cover
2. Prism surface
ORA_10_18_20_32_80BA-d-1410
4
6
3. Adjustment screw
4. Eyepiece with rubber eyeshade
5. Diopter adjustment ring
6. Optical tubes with rubber grip
5
6
7. Storage box
9
8. Pipette
9. Refractometer
10. Calibration liquid
10
(Distilled water)
11
11. Adjustment tool
9
12. Cleaning cloth
12
3. General information
GB
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
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:
1
4. Basic safety information
4.1 Follow the instructions in the operating manual
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 after 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
Net weight
▸ 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.
0,155kg
0,155kg
0,155kg
5. supplied items
0,145kg
After unpacking and before using the device for the first time, check that all
0,135kg
listed parts have been supplied. Replace damaged or faulty parts immediately
and do not put them into operation.
1
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.
!
2
▸ 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
▸ 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.
▸ Refractometer
▸ Storage box
▸ Pipette
▸ Adjustment tool
▸ Cleaning cloth
▸ Calibration liquid (Distilled water)
The refractometer cannot be used for the measurement of oil-based fluids.
3
4
5
6
Need help?
Do you have a question about the ORA 10 BA and is the answer not in the manual?
Questions and answers