KERN ORA 10 BB, ORA 18 BB, ORA 20 BB, ORA 32 BB, ORA 80 BB Operating Manual
ORA_10_18_20_32_80BB-BA-e-1510
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen, Germany
E-mail: info@kern-sohn.com
Tel: +49-[0]7433-9933-0
Fax: +49 (0)7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Analogue Brix Refractometer
KERN ORA 10 BB
ORA 18 BB
ORA 20 BB
ORA 32 BB
ORA 80 BB
Version 1.0
01/2015
GB
ORA_10_18_20_32_80BB-BA-e-1510 2
GB
KERN ORA
Version 1.0 01/2015
Operating instructions
Analogue refractometer
Contents
1
Technical data ................................................................................................ 3
2
Description ..................................................................................................... 4
3
General information ....................................................................................... 5
3.1
Intended use ............................................................................................................................. 5
3.2
Warranty .................................................................................................................................... 5
4
Basic safety information ............................................................................... 6
4.1
Follow the instructions in the operating manual .................................................................. 6
4.2
Warning ..................................................................................................................................... 6
5
Supplied items ............................................................................................... 7
6
Before the first use ........................................................................................ 7
7
Use/measurement .......................................................................................... 7
7.1
Zero point calibration ............................................................................................................... 8
7.2
Additional advice ...................................................................................................................... 9
7.3
Measuring procedure ............................................................................................................... 9
8
Cleaning and maintenance ........................................................................... 9
9
Storage ......................................................................................................... 10
10
Service .......................................................................................................... 10
11
Disposal ........................................................................................................ 10
12
Additional information ................................................................................. 10
13
Brix to refractive index (nD) conversion table .......................................... 11
14
Annex .............................................................................................................. 1
3 ORA_10_18_20_32_80BA-e-1510
1 Technical data
Models
KERN
Measuring
range
and
Scales
Scale gradua-
tions
Accuracy
Dimensions
Product
Net weight
ORA 10BB 0-10 % Brix 0.1% Brix
189x40x40mm 0.155kg
ORA 18BB 0-18 % Brix 0.1% Brix
189x40x40mm 0.155kg
ORA 20BB 0-20 % Brix 0.1% Brix
189x40x40mm
0.155kg
ORA 32BB 0-32 % Brix 0.2 % Brix
178x40x40mm 0.145kg
ORA 80BB 0-80 % Brix 0.5 % Brix
137x40x40mm 0.135 kg
Example scale on the ORA 18 BB
ORA_10_18_20_32_80BB-BA-e-1510 4
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
7. Storage box
8. Pipette
9. Refractometer
10. Distilled water / calibration liquid
11. Adjustment tool
12. Cleaning cloth
2
4
5
3
6
1
7
10
9
11
12
8
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