A. KRÜSS Optronic GmbH
Alsterdorfer Str. 276–278 ∙ 22297 Hamburg / Germany
Fon +49-(0)40-514317-0 ∙ Fax +49-(0)40- 514317-60
Email: info@kruess.com ∙ www.kruess.com
Version 1.0 | State: Nov 2011 | Subject to technical modification without notice / errors and omissions excepted
Digital Handheld Refractometers
DR101-60 | DR201-95
Operating Manual
Precautions:
• Pleaseusetheinstrumentonlywithintheoperatingtemperatureof
18–35 °C (65–95 °F).
• Thisrefractometerisanelectronicinstrument,itcanbecomedamagedif
droppedorhandledinaroughmanner.
• Theprismismadeofopticalglassandissusceptibletoscratches.
Donotapplyanyroughorabrasivematerialandtakecarewhencleaning
the prism.
• Aftereachuse,cleantheprismandtheprismassemblywithasoftclothor
tissuesoakedinwater,andwipeoffwithadyclothortissue.
• Donotholdtherefractometerunderastreamofwaterfromafaucet.
Do not splash it with or dip it in water.
• Ifthesurfaceoftheprismbecomescoatedwithanoilysolutionorsimilar,
itwillrepeltestsampleandaffectreadings.Ifthisoccurs,theprismshould
becleanedwithaweakeneddetergentorsimilarsolvent.
• Donotusetheinstrumentunlessyouknowhowtocalibrate.
Survey of models
Model / Article-No. DR101-60 DR201-95 DR201-95-OE
Measurement range
1.3330–1.4419 nD
0–60 %Brix
1.3330–1.5318 nD
0–95 %Brix
0–250 °Oechsle
0–95 %Brix
Accuracy
0.0005 nD
0.25 %Brix
0.0003 nD
0.2 %Brix
1 °Oechsle
0.2 %Brix
Resolution
0.0001nD
0.1 %Brix
0.0001nD
0.1 %Brix
1 °Oechsle
0.1 %Brix
Temperature-
measurement
0–40 °C 0–40 °C 0–40 °C
Temperature-
accuracy
0.5 °C 0.5 °C 0.5 °C
Temperature-
compensation
10–40 °C 10–40 °C 10–40 °C
Prism opticalglass
Case plastic
Dimensions 110 x 62 x 32 mm 130 x 80 x 40 mm
Weight 160g 200g
Power supply 1.5 V batterie 1.5 V batterie
en