Eyepiece
Daylight plate
Grip
Prism
Scale adjustment screw
Sample Stage
1. Names and functions of main parts
7. Verifying Calibration and Calibration Certification
11. Specifications
10. Repair and warranty
ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance.
PRECAUTIONS
(Be sure to read the following before use.)
Warning!
Caution
When using this instrument to measure
solutions which may be harmful to humans,
please handle all materials carefully, using
the proper gloves and mask. Please be
aware of any special handling instructions
for any harmful solution.
●Carefully read the instruction manual of this instrument to
ensure proper use and operating methods.
●When handling and carrying this instrument, avoid dropping or
subjecting to any strong shock or excessive force.
●If this instrument is used for any application other than its
intended purpose, ATAGO will not be held liable for any
damage caused by the use of or the measurement(s) obtained
by the operator.
●ATAGO is not liable for any loss and damage caused by the
measurement and use of this instrument.
●The prism is considered a consumable item and a charge will
be incurred for the replacement of this part.
●
All instruments received for repair are subject to a possible
inspection fee. ATAGO does not warrant the problems which are
caused by user error even though the unit is under warranty.
Never
splash water
on the unit.
[1] Verifying Calibration
[2] Calibration Certification
To ensure measurement accuracy, the refractometer should be zero set prior to use
each day. Periodic maintenance/service and calibration of your refractometer is
recommended. The frequency at which calibration is performed will depend on each
company’s Standard Operating Procedures.
Based on ISO quality management system, Calibration Certificates can be ordered for any ATAGO refractometer. HACCP or
GMP certification can also be provided at additional cost. Please contact an ATAGO distributor for more information.
①Confirm that the prism is clean and free of scratches.
②Depending on the model, measure with purified water or a sucrose solution. Check that the boundary line is parallel to the
memory lines.
③Verify that the measurement value matches the expected value of the known calibration solution.
RE-110010
RE-110020
RE-110030
RE-110040
RE-110050
Part No. Part Name
Sucrose Solution 10.0％(g/100g)
Sucrose Solution 20.0％(g/100g)
Sucrose Solution 30.0％(g/100g)
Sucrose Solution 40.0％(g/100g)
Sucrose Solution 50.0％(g/100g)
All refractometers are designed to measure the refractive index of a solution. The Brix scale is based on a sucrose （sugar) and
water solution. However, since most samples contain substances other than sugar - such as salts, minerals and proteins - the
Brix percentage represents the total concentration of all soluble solids in the sample. For certain samples, such as cutting oils
and other industrial fluids, a conversion chart from the Brix percentage to the sample's total concentration may be necessary.
8. Brix scale
①While holding the eyepiece toward you, turn the eyepiece counter-clockwise until it
can be removed.
②Gently wipe the two areas indicated by the arrows in the figure with a clean, dry
cloth to remove any moisture.
③Replace the eyepiece and secure by turning in a clock-wise direction.
If the view of the scale and boundary line becomes obstructed by moisture within
the eyepiece, follow the instructions below for proper cleaning:
Note:
A brix value expressed as a percentage (％) is equivalent to that value expressed in degrees Brix (°Brix).
inside of eyepiece
outside of eyepiece
9. When moisture accumulates in the eyepiece
Design Registration No.000379326-0001, 000379326-0002 (EU), ZL 2005 3 0116403.4,5 (China), D111526 (Taiwan), D554, 549 (U.S.A.)
1255763, 1255764, 1255765, 1255766, 1255767 (Japan) Patent pending in U.S.A. and all other countries around the world.
2353-E04
series
MASTER-53M
(Cat.No. 2353, Brix 0.0 to 53.0%)
MASTER-20M
(Cat.No. 2383, Brix 0.0 to 20.0%)
MASTER-M
(Cat.No. 2313, Brix 0.0 to 33.0%)
MASTER-10M
(Cat.No. 2373, Brix 0.0 to 10.0%)
AUTOMATIC &
W
ATER RESISTANT
INSTRUCTION
MANUAL
Check
Point
To ensure your refractometer continues to operate properly and look new for a long time!
MASTER SERIES REFRACTOMETER
When measuring samples with a high salt content, be sure to clean the refractometer by wiping the unit completely after each use,
especially the metal areas. The unit should be stored in the ATAGO storage box provided when not in use.
Have the serial number of your refractometer available when asking about repair.
The MASTER-M series are warranted for one year after the date of purchase against any manufacturer defect in materials or workmanship.
Prism and sample stage are excluded from the warranty. Any of the following events happening to the unit will void the warranty:
●Disassembled by anyone other than authorized service provider ●Immersed in liquid or dropped
●Misused, abused, or used/stored in improper ambient conditions
Service fees are applicable for repairs after the warranty period expires. Contact an authorized ATAGO Service Center or the
original seller for details.
Brix 0.0 to 10.0%
Brix ±0.2%(at 20℃) Brix ±0.2%
Brix ±0.1%(at 20℃) Brix ±0.1%
Brix 0.0 to 53.0%
Brix 0.2%
3.2×3.4×16.8cm, 130g
Measurement range
Minimum scale
Size and weight
MASTER-10M
(Cat.No.2373)
MASTER-53M
(Cat.No.2353)
Brix 0.1%
3.2×3.4×20.3cm, 155g
Brix 0.0 to 20.0%
Brix ±0.2%
Brix ±0.1%
MASTER-20M
(Cat.No.2383)
Brix 0.1%
3.2×3.4×20.7cm, 165g
Brix 0.0 to 33.0%
Brix ±0.2%
Brix ±0.1%
MASTER-M
(Cat.No.2313)
Brix 0.2%
3.2×3.4×20.3cm, 155g
Accuracy
Repeatability
Eyepiece
Daylight plate
RE-2311-12M
RE-2315-60M
RE-2311-67M
Small volume
daylight plate
Part #Name
cThe eyepiece and daylight
plate are user replaceable.
Please contact an ATAGO
distributor to place an order or
for any inquiries.
（MASTER-53M pictured above.）
1910K Printed in Japan
Headquarters: The Front Tower Shiba Koen
23rd Floor 2-6-3 Shiba-koen, Minato-ku
Tokyo 105-0011, Japan
TEL: 81-3-3431-1943 FAX:81-3-3431-1945
overseas@atago.net http://www.atago.net/
TEL: 1-425-637-2107
customerservice@atago-usa.com
TEL: 91-22-28544915 / 40713232
customerservice@atago-india.com
TEL: 66-21948727-9 ,66-21171549
customerservice@atago-thailand.com
TEL: 55 16 3913-8400
customerservice@atago-brasil.com
TEL: 39 02 36557267
customerservice@atago-italia.com
TEL: 86-20-38108256
info@atago-china.com
TEL: 7-812-777-96-96
info@atago-russia.com
TEL: 234-707-558-1552
atagonigeria@atago.net
TEL: 7-727-257-08-95
info@atago-kazakhstan.com
Access now ⇒
In just
-
a
-
minute
From 1 year to2years
Free Extended Warranty
It requires only 1 minute! Simply by answering questions, warranty period is extended from 1 year to 2 years.
(The registration page can be accessed from ATAGO website.)
Thank you for your purchase of a quality ATAGO product.
光… Capture the Light, Measure the Future!
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