Diesella 15305010 User manual

INTENDED USE
The refractometer is a measuring instrument for determining the refractive index of transparent
substances in the liquid or the solid state. It is used to observe the behavior of light as it passes
from a prism with known properties to the substance being tested. Use of the refractometer for
other purposes is contrary to its intended use and may be hazardous. The manufacturer shall
not be liable for any damages caused by improper use.
This refractometer is particularly suitable for measuring of the Brix value. This means that you
can determine the sugar content of a wide variety of foods, such as fruits, vegetables, juices,
and many other types of beverages that contain sugar. Brix refractometers are also particularly
ideal for monitoring processes in various branches of industry (coolant monitoring, oils and fats).
PACKAGE CONTENTS
After unpacking and before using the device for the rst 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
• Calibration liquid (Distilled water)
• Operating instruction
INTRODUCTION
This user manual is for the refractometers art. nr. 15305010 / 15305018 / 15305020 / 15305032 /
15305062 / 15305080 / 15305082 (hereinafter referred to as the appliance) and provides impor-
tant information on the use, safety, connection and operation of the appliance. The user manual
must always be kept near the appliance. It must be read and used by the persons who have the
task of operating and repairing faults on the refractometer. Keep this user manual and leave it
with the appliance if you pass it on to others.
LIMITATION OF LIABILITY
All technical information, data and information on connection and operation are in accordance
with the latest knowledge at the time of printing. No requirements can be made based on the
information, pictures and descriptions in this guide.
The manufacturer accepts no liability for damage due to non-compliance with the instructions,
use that does not fall within this scope, incorrect repairs, alterations made without permission
and use of unauthorized spare parts.
BASIC SAFETY INSTRUCTIONS
Observe the following safety instructions for safe use of the appliance:
• Check the appliance for external, visible damage before use. Do not use the appliance
if it is damaged. There is a risk of electric shock.
• Only have the appliance repaired by authorized specialist shops or customer service.
• Improper repairs can result in signicant damage hazards to the user.
Furthermore, ALL warranty claims are canceled.
• NEVER place the appliance in a window - there is a risk of re!
• This appliance must not be used by persons (including children) limited physical,
sensory or mental abilities or with lack of experience and/or lack of knowledge,
unless a responsible person supervises them and gives them instructions for
how to use the appliance.
• Children must be supervised to ensure that they do not play with the appliance.
We thank you for choosing a refractometer developed by Diesella. With this operating
instruction, we would like to help you get started using the product and ensure you get the
best user experience. Please keep this manual a safe place for later reference or use.
FIELD OF APPLICATION
This appliance is for indoor use only and can be used in working temperature from
10°C to 30°C. All other uses are considered to be outside the scope. No claims can be made
in connection with damage caused by the use of the appliance for purposes for which it is not
intended. The owner bears the risk alone.
UNPACKING
NOTE
• Check that all parts are witin the package and that they do not have visible damage.
• If parts are missing or damaged due to defective packaging or transport,
please contact the dealer where you purchased the device.
• Take the appliance and the user manual out of the box.
• Remove all packaging material.
WARNING: Packaging materials must not be used for children’s play.
There is a danger of suffocation!
DISPOSAL OF THE PACKAGING
The packaging protects the lamp from transport damage. The packaging materials are
selected based on criteria such as environmental compatibility and disposal technology
and can therefore be recycled.
When handing over the packaging for recycling, many raw materials are saved and the
amount of waste is reduced. Dispose of packaging materials that are no longer to be
used in accordance with local regulations.
DEVICE 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. Calibration liquid (Distilled water)
11. Adjustment tool
12. Cleaning cloth
DISPOSAL OF THE APPLIANCE
The packaging consists of environmentally friendly materials which can be disposed of via local
recycling facilities. The device and storage box should be disposed of by the operator in
accordance with applicable national or regional regulations at the place of use.
• Do not dispose of the appliance with normal household waste.
• Dispose of the appliance at an approved waste disposal company
or at your municipal waste facility.
• Follow the current rules. Contact the waste disposal system if in doubt.
OPERATING INSTRUCTION
REFRACTOMETER BRIX
Item no. 15305010 | 15305018 | 15305020 | 15305032 | 15305062 | 15305080 | 15305082
UK
The product may differ slightly from the illustrations.
NOTE: If possible, keep the original packaging for the appliance,
so you can wrap it properly in case of a warranty case.
7
8
9
10 11
12
5
6
1
2
3
4

CLEANING AND MAINTENANCE
Clean the refractometer using a soft, lint-free cloth moistened with either 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. Never touch the measuring prism [2] with hard tools made
from plastic, wood, rubber, metal, glass etc. Hard objects can quickly damage the
relatively soft prism glass, resulting in measurement errors. The refractometer is
maintenance-free. Cleaning should be carried out immediately before and after each
use of the refractometer to maximize its life and optimize measurement results.
• Avoid exposing the refractometer to direct sunlight.
• Never bring the refractometer into contact with solvents. ANALOGUE REFRACTOMETERS (BRIX)
SERVICE
After reading this operating manual, if you have any questions about setting up or using the
refractometer, or if any unexpected problem occurs, please contact your dealer.
WARRANTY!
The warranty shall be void in the event of:
• Failure to observe the instructions in the operating manual.
• Use for purposes other than those described.
• Changes or opening of the appliance house.
• Mechanic damage and/or damage in cause of media, uids, natural wear.
OPERATION AND FUNCTION
Zero Point Calibration and measurement procedure
The refractometer can be used to determine the refractive index of transparent substances,
liquid or solid ones quickly and accurately. To ensure correct measurement, the measuring
device should be adjusted before measurements are carried. out. Please make sure your
hands are dry before handling the measuring device.
1. Start by removing the protective lm (if present) from the prism surface [2]
and check that the rubber eyecup [4] is tted correctly.
2. Hold up the refractometer against a sufciently bright light source and look through
the eyepiece [5], holding the rubber eyeshade [4] closely against your eye/glasses.
3. Rotate the eyepiece [5] to adjust it for your eyesight, until you can see the scale sharply.
4. Open the prism cover [1].
5. Thoroughly clean the prism [2] and the underside of the prism cover [1] using a soft
cloth or soft paper (with alcohol if necessary) and wipe dry.
6. Now apply a few drops of the calibration liquid [10] onto the prism surface [2].
7. Close the prism cover [1]. The amount of uid should be sufcient to moisten most of
the prism surface. There should not be any air bubbles between the measuring prism
[2] and prism cover [1].
8. Wait about 30 seconds to allow the temperatures of the uid and prism to equalize.
9. Look through the eyepiece [4] while pointing the prism surface [2] at a bright light source.
10. Through the eyepiece [4], you will see a bright and a blue eld. The boundary line
between them shows the measured value on the scale which is also visible
through the eyepiece [4].
11. Use the supplied adjustment tool [11] to turn the adjustment screw [3] behind the
prism surface [2] (under the rubber cap) and adjust the scale so that the measuring
device is optimally set up by moving the boundary line upwards or downwards.
12. Repeat step 4 (cleaning).
MEASUREMENT PROCEDURE
It is important that the samples being measured are representative samples. For samples that
evaporate easily, measurements should be carried out quickly. The samples should be at the
same temperature as the measuring instrument in order to achieve an accurate result.
1. Make sure your hands are dry before handling the refractometer.
2. Open the prism cover [1] and use the supplied pipette [8] to apply a few drops of the
sample liquid [8] onto the prism surface [2]. Close the prism cover [1]. Spread the liquid
evenly by pressing down on the prism cover [1] and eliminate any air bubbles present.
3. Hold the device horizontally and wait about 30 seconds (for optimal temperature
equalization between the sample and device).
4. View the measurement scale through the eyepiece [4]. Point the prism surface [2] of the
refractometer at a bright light source while doing this.
5. Rotate the adjustment ring [5] on the eyepiece [4] to adjust the focus.
6. The boundary line will move on the measurement scale depending on the
concentration. This bright/dark boundary line shows the result on the scale.
7. If the temperature deviates from +20 °C and a refractometer without ATC is used,
correct the measured result using the corresponding value from the temperature
correction table [13].
8. Carefully clean the supplied pipette [8] and the refractometer after carrying
out the measurement.
IMPORTANT!
After every measurement, use a lint-free, absorbent cloth to remove the uids from the prism
surface [2] and prism cover [1]. Then carefully clean the prism and prism cover using a
cloth moistened with water or if necessary, alcohol, and dry both parts using a soft,
dry and lint-free cloth. Avoid rubbing the prism [2].
BRIX TO REFRACTIVE INDEX (ND) CONVERSION TABLE
There is a direct relationship between the refractive index and BRIX. The measured
refractive index is converted directly into weight percent sucrose content (°Brix).
This conversion is based on ICUMSA (International Commission for Uniform
Methods of Sugar Analysis) and the table can be found at www.diesella.com.
Model Measuring
range
Scale
resolution
Scale accuracy Product
dimension
Net.
weight
15305010 0-10% Brix 0.1% Brix ±0.10% 203 × Ø40 mm 235 g
15305018 0-18% Brix 0.1% Brix ±0.10% 203 × Ø40 mm 235 g
15305020 0-20% Brix 0.1% Brix ±0.10% 170 × Ø40 mm 207 g
15305032 0-32% Brix 0.2% Brix ±0.20% 170 × Ø40 mm 207 g
15305062 28-62% Brix 0.2% Brix ±0.20% 157 × Ø40 mm 178 g
15305080 45-82% Brix 0.5% Brix ±0.5% 145 × Ø40 mm 186 g
15305082 0-80% Brix 1% Brix ±1% 145 × Ø40 mm 187 g
15305010 |15305018 |15305020 |15305032 |15305062 |15305080 |15305082 |20.05.2022
ART. 15305010
ART. 15305020
ART. 15305062
ART. 15305018
ART. 15305032
ART. 15305080
ART. 15305080
Diesella A/S | Marsvej 20 | DK-6000 Kolding | Tel. [phone] | [e-mail] | www.diesella.dk