Flir Extech RF30 Refractometer User's Guide PDF

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Summary of Content for Flir Extech RF30 Refractometer User's Guide PDF

RF30-en-US_V1.2 3/15

User's Guide 0 to 90% Brix Refractometer Model RF30

Introduction Congratulations on your purchase of the Extech RF30 Brix Refractometer. Precision optical instruments should be handled gently; avoid touching the optical surface. Careful use of these instruments will provide years of reliable service.

Specifications

Range 0 to 90% Brix in three scales: 1: (0 to 42%), 2: (42 to 71%), 3: (71 to 90%)

Resolution 0.2% Dimensions 7.5 x 1.6 x 1.2" (190 x 40 x 30mm); Weight 5.5 oz. (155g)

Description

1. Cover plate 2. Light window 3. Prism 4. Sharpness ring 5. Eyepiece and Focus 6. Light window 7. Scale select knob

Scale:

Operation This instrument measures the refractive index of a sample. The measurement is displayed in % Brix. 1. The 20C zero calibration is factory set. No further adjustment is

necessary. 2. Select the scale (1, 2 or 3) by rotating the scale select knob. 3. To take a sample reading, open the cover plate, place a few drops of the

sample (a vial of distilled water is included) on the measurement prism. Close the prism cover plate so that the liquid spreads across the entire surface of the prism without air bubbles or dry spots. Allow the sample to remain on the prism for approximately 30 seconds.

4. While holding the instrument under a light source, look through the eyepiece. Rotate the eyepiece to adjust the focus

5. The sucrose concentration is determined by the intersection of the boundary of the light and dark fields (known as the shadowline) on the printed scale. Adjustment of the sharpness ring can improve the shadowline definition.

6. It may be necessary to adjust the position of the light source to maximize the contrast of the shadowline. The light window may also be opened or closed to improve contrast.

7. Change the range if the line is offscale. 8. Once a reading has been taken, wipe dry with a clean cloth (do not wash

or rinse) and place the instrument in the supplied plastic case. Store the instrument in a safe, dry environment.

Temperature Compensation The RF30 Refractometer has been designed for use with a 20C standard temperature. If the temperature of the measurement deviates from 20C, the reading must be manually compensated in accordance with the Temperature Compensation Table.

Example: Reading = 20%, Temperature = 28C 20% + 0.62% (add from table) =20.62%.

Copyright  20132015 FLIR Systems, Inc.  All rights reserved including the right of reproduction in whole or in part in any 

form 

www.extech.com 

Temperature Compensation Table (Referenced To 20OC) % 0 5 10 15 20 25 30 35 40

oC Subtract from the measured value 10 0.52 0.58 0.59 0.61 0.64 0.67 0.69 0.71 0.72 11 0.48 0.51 0.54 0.55 0.58 0.61 0.63 0.65 0.65 12 0.44 0.47 0.49 0.50 0.52 0.55 0.57 0.58 0.58 13 0.39 0.42 0.44 0.44 0.45 0.49 0.50 0.51 0.51 14 0.35 0.37 0.38 0.39 0.40 0.42 0.43 0.44 0.44 15 0.29 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.37 16 0.24 0.25 0.26 0.27 0.28 0.28 0.29 0.30 0.30 17 0.18 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.23 18 0.12 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 19 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.08 0.08 Add to the measured value

21 0.06 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 22 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.16 0.16 23 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.23 0.23 24 0.27 0.28 0.29 0.29 0.30 0.30 0.31 0.31 0.31 25 0.34 0.35 0.36 0.37 0.38 0.38 0.39 0.39 0.40 26 0.42 0.43 0.44 0.44 0.46 0.46 0.47 0.47 0.48 27 0.50 0.51 0.52 0.53 0.54 0.55 0.55 0.56 0.56 28 0.58 0.59 0.60 0.61 0.62 0.63 0.64 0.64 0.65 29 0.66 0.67 0.68 0.69 0.70 0.71 0.72 0.73 0.73 30 0.74 0.75 0.77 0.78 0.79 '0.80 '0.81 0.81 0.81

% 45 50 55 60 65 70 75 80 85

oC Subtract from the measured value 10 0.74 0.74 0.74 0.75 0.76 0.77 ---- ---- ---- 11 0.67 0.67 0.67 0.68 0.68 0.69 ---- ---- ---- 12 0.60 0.60 0.60 0.60 0.61 0.61 ---- ---- ---- 13 0.53 0.53 0.53 0.53 0.53 0.53 ---- ---- ---- 14 0.45 0.45 0.45 0.45 0.45 0.46 ---- ---- ---- 15 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.37 0.07 16 0.30 0.31 0.31 0.31 0.31 0.31 0.30 0.30 0.30 17 0.23 0.23 0.23 0.23 0.23 0.23 0.23 0.23 0.22 18 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 19 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.07 Add to the measured value

21 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.07 22 0.16 0.16 0.16 0.16 0.16 0.15 0.15 0.15 0.15 23 0.24 0.24 0.24 0.24 0.23 0.22 0.23 0.23 0.22 24 0.31 0.31 0.32 0.32 0.31 0.31 0.31 0.30 0.30 25 0.40 0.40 0.40 0.40 0.39 0.39 0.39 0.38 0.37 26 0.48 0.48 0.48 0.48 0.47 0.47 0.46 0.46 0.45 27 0.56 0.56 0.56 0.56 0.55 0.55 0.54 0.53 0.52 28 0.65 0.64 0.64 0.64 0.64 0.63 0.62 0.61 0.60 29 0.73 0.73 0.73 0.72 0.72 0.71 0.70 0.69 0.68 30 0.82 0.81 0.81 0.81 0.80 0.79 0.78 0.77 0.75

Warranty

FLIR Systems, Inc. warrants this Extech Instruments brand device to be free of defects in parts  and workmanship for one year from date of shipment (a six month limited warranty applies to  sensors and cables). If it should become necessary to return the instrument for service during or  beyond the warranty period, contact the Customer Service Department for authorization. Visit  the website www.extech.com for contact information. A Return Authorization (RA) number must  be issued before any product is returned. The sender is responsible for shipping charges, freight,  insurance and proper packaging to prevent damage in transit. This warranty does not apply to  defects resulting from action of the user such as misuse, improper wiring, operation outside of  specification, improper maintenance or repair, or unauthorized modification. FLIR Systems, Inc.  specifically disclaims any implied warranties or merchantability or fitness for a specific purpose  and will not be liable for any direct, indirect, incidental or consequential damages. FLIRs total  liability is limited to repair or replacement of the product. The warranty set forth above is  inclusive and no other warranty, whether written or oral, is expressed or implied. 

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Support Lines: U.S. (877) 4398324; International: +1 (603) 3247800  Technical Support: Option 3; Email: support@extech.com  Repair & Returns: Option 4; Email: repair@extech.com 

Product specifications are subject to change without notice  Please visit our website for the most uptodate information 

www.extech.com  FLIR Commercial S

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