ATAGO MASTER Series Instruction Manual

7. Quick and Easy sampling

Automatic Sample Distribution (ASD) : Place apporoximately 0.3mL of sample
on the front end (Figure ①) or the rear end (Figure ②) of the sample stage, and
tilt the refractometer slightly in the proper direction to allow the sample to move
over the prism. The sample liquid will spread evenly and the measurement
value can then be read more quickly and easily. By eliminating the steps of
lifting and closing the daylight plate when applying a sample, the operator can
save much time when having to measure many samples daily.
(This measuring method requires the sample to be low in viscosity.)

8. Brix Scale

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.
Note: A brix value expressed as a percentage (％) is equivalent to that value expressed in degrees Brix (°Brix).

9. When moisture accumulates in the eyepiece

If the view of the scale and boundary line becomes obstructed by
moisture within the eyepiece, follow the instructions below for proper
cleaning:
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.

10. Repair and warranty

The MASTER-T 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.
Have the serial number of your refractometer available when asking about repair.

11. Specifications

MASTER-53T
(Cat.No.2352)
Measurement range
Brix 0.0 to 53.0%
Minimum scale Brix 0.2%
Accuracy Brix ±0.2%
(at 20℃)
Repeatability Brix ±0.1% (at 20℃)
Size and weight 3.2×3.4×16.8cm, 130g 3.2×3.4×20.3cm, 155g
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)
TEL: 91-22-28544915 / 40713232
Headquarters: The Front Tower Shiba Koen
customerservice@atago-india.com
23rd Floor 2-6-3 Shiba-koen, Minato-ku
Tokyo 105-0011, Japan
TEL: 66-21948727-9 ,66-21171549
TEL: 81-3-3431-1943 FAX:81-3-3431-1945
customerservice@atago-thailand.com
overseas@atago.net http://www.atago.net/
TEL: 55 16 3913-8400
customerservice@atago-brasil.com
TEL: 1-425-637-2107
customerservice@atago-usa.com
TEL: 39 02 36557267
customerservice@atago-italia.com
①
MASTER-10T MASTER-20T
(Cat.No.2372) (Cat.No.2382)
Brix 0.0 to 10.0% Brix 0.0 to 20.0%
(Automatic Temperature Compensation)
Brix 0.1% Brix 0.1%
Brix ±0.2% Brix ±0.2%
(10 to 30℃) (10 to 30℃)
Brix ±0.1% Brix ±0.1%
3.2×3.4×20.7cm, 165g 3.2×3.4×20.3cm, 155g
Patent Granted in countries around the world.
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
In just-a-minute
②
It requires only 1 minute!
(The registration page can be accessed from ATAGO website.)
MASTER SERIES REFRACTOMETER
(Automatic Temperature Compensation)
MASTER-53T
MASTER-10T
Check
To ensure your refractometer continues to operate properly and look new for a long time!
Point
outside of eyepiece 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.
Thank you for your purchase of a quality ATAGO product.
光... Capture the Light, Measure the Future!
1. Names and functions of main parts
inside of eyepiece
Prism
Sample Stage
MASTER-T
(Cat.No.2312)
Brix 0.0 to 33.0%
Brix 0.2%
ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance.
Brix ±0.2%
(10 to 30℃)
Brix ±0.1%
PRECAUTIONS
(Be sure to read the following before use.)
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.
1910K Printed in Japan
2
From 1 year to years
Free Extended Warranty
Simply by answering questions, warranty period is extended from 1 year to 2 years.
MASTER-20T
(Cat.No. 2352, Brix 0.0 to 53.0%)
MASTER-T
(Cat.No. 2372, Brix 0.0 to 10.0%)
Grip
Daylight plate
Scale adjustment screw
（MASTER-53T pictured above.）
●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
Warning!
its intended purpose, ATAGO will not be held liable for
any damage
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.
2352-E07
Access now ⇒
series
Never splash
water on the unit.
(Cat.No. 2382, Brix 0.0 to 20.0%)
(Cat.No. 2312, Brix 0.0 to 33.0%)
Eyepiece
c
The eyepiece and daylight
plate are user replaceable.
Please contact an ATAGO
distributor to place an order or
for any inquiries.
Name Part #
Eyepiece RE-2311-12M
Daylight plate RE-2315-60M
Small volume
RE-2311-67M
daylight plate
Caution
caused by the use of or the