Related Manuals for kruss DR201-95
Summary of Contents for kruss DR201-95
- Page 1 DIGITAL HANDHELD REFRACTOMETER DR201-95 INSTRUCTION MANUAL VERSION 3.1 JULY 2022 k r u e s s . c o m...
- Page 2 Background information on the relevant action step Indicates partial results or interaction results in action ✓ guidelines At the beginning of corrective measures listed in the chapter Troubleshooting Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 2 of 30...
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Page 3: Table Of Contents
General requirements for operation ............. 12 3.2.2 Positioning ....................12 3.2.3 Inserting the battery ..................13 3.2.4 Switching on the device................13 3.2.5 Test measurement ..................13 Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 3 of 30... - Page 4 Recommanded sample-specific cleaning agents ........22 Exchanging the battery ................ 23 TROUBLESHOOTING ............... 24 DECOMMISSIONING ............... 26 TERMS OF WARRANTY .............. 27 EC DECLARATION OF CONFORMITY ........28 Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 4 of 30...
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Page 5: Intended Use
1 Intended use Performance description The DR201-95 is a compact, mobile, and splash-water proof digital handheld refractometer. It is used for the measurement of the refractive index (nD) and the sugar content in % (%Brix) of liquid and viscous samples. The device determines the refractive index between nD 1.3330–1.5318 and the sugar content in the... -
Page 6: Application Areas
Application areas The DR201-95 is used in the food industry, pharmacies, and investigations offices, as well as in research and teaching. The device is suitable for the following investigations and areas of application: ▪ Identity tests, purity control and concentration determination of raw materials, semi-finished products, and end products ▪... -
Page 7: Device Description
2 Device description Device overview Figure 1 – DR201-95 (Front view) ITEM DESIGNATION Measurement prism (Flint glass SF4) Measurement chamber for sample intake (fully chromed) Display (LCD) showing the measured value or the temperature Arrow pictogram showing of the selected measurement scale... -
Page 8: Measurement Scales
Manufacturer’s address WEEE-registration number (according to directive 2012/19/EU) Device type Serial number Electrical data CE-mark The type plate is located on the bottom of the device Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 8 of 30... -
Page 9: Scope Of Delivery
HOUSING Synthetic material (ABS), coated DIMENSIONS (H x W x D) 130 mm x 80 mm x 40 mm DEVICE WEIGHT 180 g Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 9 of 30... -
Page 10: Temperature Data
The refractive index is determined from the position of these areas. In addition to the refractive index, the temperature at the prism is also determined and used for the automatic temperature compensation. For more information see Campus Refraktometrie Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 10 of 30... -
Page 11: Automatic Temperature Compensation
Before disposal, inspect the packaging material for any loose functional parts and safe if necessary. ▪ Return the device in the original packaging with the completed return form; see return form (A.KRÜSS website). Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 11 of 30... -
Page 12: Commissioning
Securely position the device and observe the following conditions: ▪ Choose a plane and non-slip surface. ▪ Secure the device against falling down. ▪ Do not place the device near table edges. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 12 of 30... -
Page 13: Inserting The Battery
3.2.3 Inserting the battery Figure 5 – DR201-95 insert the battery To insert the battery 1. Open the flap (1) on the bottom of the device. 2. Insert the battery into the battery housing (2), observing the indicated polarity, and close the cover. -
Page 14: Operation
The adjustment of the device with distilled water has been carried out. To check whether the adjustment has been carried out correctly, the refractometer can be calibrated with distilled water. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 14 of 30... -
Page 15: Calibrating
If the deviation remains unchanged, an adjustment should be carried out. If the refractometer is to be calibrated with (certified) calibration standards, this can be done with measurements obtained via the READ button. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 15 of 30... -
Page 16: Measuring
When cleaning, use a solvent suitable for the sample material for cleaning. For details see chapter 5.3 Recommended sample-specific agents. RESULT The measurement has been carried out. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 16 of 30... -
Page 17: Tables
1.33316 1.33131 1.32870 1.33307 1.33117 1.32852 1.33299 1.33104 1.32835 1.33290 1.33090 1.32817 1.33280 1.33075 1.32799 1.33271 1.33061 1.32781 1.33261 1.33046 1.32762 1.33250 1.33031 1.32744 1.33240 1.33016 1.32725 Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 17 of 30... -
Page 18: Conversion Table 1: %Brix And Refractive Index
1.39032 1.43299 1.48295 1.35568 1.39220 1.43520 1.48552 1.35729 1.39409 1.43743 1.48811 1.35891 1.39600 1.43967 1.49071 1.36054 1.39792 1.44193 1.49333 1.36219 1.39986 1.44420 1.49597 1.36384 1.40181 1.44650 1.49862 Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 18 of 30... -
Page 19: Conversion Table 2: %Brix And Urea Concentration
35.9 35.0 36.0 27.2 29.1 29.8 31.5 32.4 33.8 27.3 29.2 29.9 31.6 32.5 33.8 30.0 31.7 27.4 29.3 32.6 33.9 27.5 29.4 30.1 31.8 32.7 34.0 Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 19 of 30... -
Page 20: Conversion Table 3: Refractive Index Und Ethylene Glycol
–2.4 1.3698 –16.0 1.3967 –57.4 1.3468 –3.7 1.3737 –19.0 1.4005 –67.3 1.3507 –5.1 1.3775 –22.7 1.4044 –77.0 1.3545 –6.6 1.3813 –26.5 – 1.3583 –8.7 1.3852 –31.4 – Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 20 of 30... -
Page 21: Cleaning And Maintenance
An incorrect refractive index will subsequently be measured for the next sample. Details of cleaning procedures available at the A.KRÜSS campus. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 21 of 30... -
Page 22: Recommanded Sample-Specific Cleaning Agents
Ethylene glycol, propylene Water Ethanol glycol Engine oil, lubricating oil Benzine – Mineral oils Isopropyl alcohol – Fuel, diesel, jet fuel and Benzine, petroleum – heating oil spirit Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 22 of 30... -
Page 23: Exchanging The Battery
2. Remove the empty battery and insert a replacement in correct polarity. 3. Finally, close the flap. RESULT The battery has been replaced. Adjust/calibrate the device with distilled water after exchanging the battery. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 23 of 30... -
Page 24: Troubleshooting
Battery used up or no battery battery If possible, use alkaline battery ▪ Customer Contact Faulty temperature sensor Service Membrane keypad ▪ Customer Contact Faulty membrane pad not working Service Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 24 of 30... - Page 25 ➢ Important note: Observe the specified safety instructions; if a fault is rectified improperly, the warranty will become void. ➢ If the remedial actions cannot correct the fault, contact A.KRÜSS Optronic GmbH Customer Service. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 25 of 30...
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Page 26: Decommissioning
13.08.2005. For any device delivered before 13.08.2005 the last user is responsible for its proper disposal. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 26 of 30... -
Page 27: Terms Of Warranty
Sent devices to: A.KRÜSS Optronic GmbH, Alsterdorfer Straße 276–278, 22297 Hamburg, Germany, Tel. +49 40 514317-0, Fax +49 40 514317-60, E-Mail info@kruess.com, Web www.kruess.com/en Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 27 of 30... -
Page 28: Ec Declaration Of Conformity
This declaration certifies compliance with the cited regulations but does not represent any guarantee of specific features. The safety instructions described in the relevant product information are to be observed. Instruction Manual DR201-95 Version 3.1 © A.KRÜSS Optronic 2022 Page 28 of 30... - Page 29 Other refractometers from A.KRÜSS Optronic Abbe refractometer – AR4 The AR4 determines the refractive index between nD 1.3000–1.7200 and the sugar content in the range of 0–95 % Brix.The scales and measured values can be set manually by means of a drive knob and can be read via an eyepiece.
- Page 30 A.KRÜSS Optronic – CUTTING-EDGE TECHNOLOGY, MADE IN GERMANY Hamburg headquarters of A.KRÜSS Optronic We are a leading manufacturer of high-precision laboratory and analysis instruments. For more than 220 years we have been developing and manufacturing innovative product solutions for the quality control of raw materials, semi-finished and end products in Germany.