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Related Manuals for KERN Optics ORA 2 SA
Summary of Contents for KERN Optics ORA 2 SA
- Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: +49-[0]7433-9933-0 D-72336 Balingen, Germany Fax: +49-[0]7433-9933-149 E-mail: info@kern-sohn.com Internet: www.kern-sohn.com Operating manual Analogue refractometer KERN ORA 1 SA Seawater salinity ORA 2 SA NaCL% ORA 3 SA NACL% Brix% Version 1.0 01/2015...
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Page 2: Table Of Contents
KERN ORA Version 1.0 01/2015 Operating manual Analogue refractometer Contents Technical data ....................3 Device parts and description ................ 4 General information ..................5 Intended use ..........................5 Warranty ............................ 5 Basic safety information ................6 Follow the instructions in the operating manual ..............6 Warning ............................. -
Page 3: Technical Data
27 x 40 x 190 1.000-1.070 0.005 ORA 2 SA 0-28% 0.2% 27 x 40 x 160 0-28% NaCl 0.2 % ORA 3 SA 27 x 40 x 160 0-32% Brix 0.2 % Example scale on the ORA 2 SA ORA-1SA-2SA-3SA-BA-e-1510... -
Page 4: Device Parts And Description
2 Device parts and 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. -
Page 5: General Information
3 General information 3.1 Intended use The refractometer is a measuring device for determining the refractive index of transparent substances in liquid or in some cases also in 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. -
Page 6: Basic Safety Information
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. The original document in German is the definitive version. All other language versions are non-authoritative translations. 4.2 Warning Do not let acids come into contact with skin or eyes. -
Page 7: Supplied Items
5 Supplied items After 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 Distilled water / calibration fluid 6 Before the first use... -
Page 8: Zero Point Calibration
7.1 Zero point calibration Hold up the refractometer against a sufficiently bright light source and look through the eyepiece [5], holding the rubber eyeshade [4] closely against your eye/glasses. Rotate the eyepiece [5] to adjust it for your eyesight, until you can see the scale sharply. -
Page 9: Additional Advice
7.3 Additional advice It is important that the samples being measured are representative samples. For samples that evaporate easily, measurements should be carried out quickly. If possible, the samples should be at the same temperature as the measuring device to achieve an accurate measurement result. -
Page 10: Cleaning And Maintenance
8 Cleaning and maintenance Clean the refractometer using a clean, lint-free cloth moistened with water or if necessary alcohol. Do not use any aggressive or abrasive cleaning agents. Never immerse the device in water or hold it under running water. Never handle the device with wet or damp hands.
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