2. Apply some sample
(undiluted).
20.4
℃
12.3
Brix%
5. Apply some diluted
sample (as shown in [1]).
1 2.3
20.4
℃
Brix%
Ratio
0.25
Acid
20.4
℃
49.20
1. Press the
POWER Button.
5. Gently stir.
4. Cleaning
Clean the sensor with
water.
Dry the area with
tissues thoroughly.
50.00
1.00
0.00
T
0.00
ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance.
mPlease remove the tape in the battery compartment before first use.
cThe measuring spoon is available from ATAGO. Part No. RE-39005 Measuring Spoon 1mL
Parts
Contents
Quick Tips
R
Instruction Manual
Main unit…1 Instruction Manual (this book)…1 AAA batteries…2 Measuring Spoon 1mL…1
Beaker 100mL…1 Digital scale…1（CAbout the Digital Scale）
Brix: Zero-setting
Preparation
mRecommended on a daily basis.
1. Clean the
sensor with
water.
Dry the area
with tissues
thoroughly.
4.
Proceed to Brix: Zero-setting.
－Zero-setting is required.－
Press the ZERO button
(with nothing on the
sensor).
“000” will appear.
Acid: Zero-setting
2. Press the
START button
(with nothing on
the sensor).
The instrument
is zero-set
correctly.
L L L
20.4
℃
Brix%
0.0 0
Acid
0 0 0
Brix%
Acid
0 0 0
Brix%
Acid
L L L
20.4
℃
Brix%
3. Press the
START button.
20.4
℃
0 0 0
Acid
0.0
20.4
℃
Brix%
20.4
℃
0 0 0
Brix%
At least 0.3mL
3.
Proceed to measurement.
－Zero-setting is required.－
Press the ZERO button.
“000” will appear.
1. Apply tap/purified
water.
The instrument is
zero-set correctly.
Press the START
button.
2. Press the START
button.
“LLL” will appear.
Zero-setting and Measurement
Measurement: not 0.00 Acid
Measurement: 0.00 Acid
Measurement: not 0.0 Brix
Measurement: 0.0 Brix
Flash
Flash
Light up
Flash Light up
[1]Acid: Dilution CAbout the Digital Scale
c
Necessary Materials
Digital scale, Beaker 100mL
[2]Measuring the Brix
[3]Measuring the Acidity
1. Clean the sensor
with water.
Dry the area with
tissues thoroughly.
Measurement is
displayed after
“---.”
cIn case “LLL” is
displayed, add sample
and measure the Brix
again. Remove sample.
3. Press the
START button.
cThe measurement is the value
of the sample (stock-solution).
cThe displayed value is the
temperature at the measurement of
acidity.
6. Press the
START button.
2. Place the beaker on
the scale and zero set
(tare).
（Press the Zero-set
button (tare)）
3. Pour 1.00g of fruit juice
into the beaker.
cAny amount of sample
can be made as long as the
dilution ration is 1:50. We
recommend 1.00g of sample
to keep accuracy consistent.
4. Add purified water
until the total weight is
50.00g.
Fruit juice
Purified water
Measurement
・Wipe off the sample. Clean the sensor with water.
Dry the area with tissues thoroughly.
・Clean oily residues with mild soap, and then, rinse with water.
mHandle the sensor with care so as not to scratch it.
Cleaning
Sugar/Acid Ratio Display
Press the R button when the
Brix or Acidity is displayed to
show the sugar and acidity
ratio. Sugar/Acid ratio = Brix% /
Acidity%
cPress the R button to
return to the measurement
value display.
At least 0.3mL
At least 0.6mL
Acid: Checking with Reference Solution
1. Clean the
sensor with
water.
Dry the area
with tissues
thoroughly.
(Press the
START button
to turn on the
instrument.)
cThe reference solution is available from ATAGO. Part No. RE-130004 Reference solution (0.04% Citric acid solution)
5.
Calibration is required.
Acid: Calibration
6.Apply the reference solution.
Turn on the instrument.
Press the START and ZERO
buttons simultaneously.
cBrix (%) may not be 0.0% (this
will not affect accuracy of
measurement values).
2. Press the ZERO
button (with nothing
on the sensor) to
zero-set.
“000” will appear.
20.4
℃
0 0 0
Acid
4. Press the START
button 2 times
0.0
Brix%
20.4
℃
3. Apply the
reference
solution.
*Reference
solution
(0.04% (g/100g)
Citric acid
solution)
At least 0.6mL
“CCC”
will appear.
20.4
℃
C C C
Acid
Flash Light up
When there is any doubt regarding accuracy of measurement results, adjust the reference value according to the following procedure.
Acid: Checking with Reference Solution
Flash Light up
cBrix (%)
may not be 0.0%
(this will not
affect accuracy
of measurement
values).
The following messages alert the user when an operation has failed.
Brix : The START button was pressed with nothing or an insufficient amount of sample on the sensor section.
Temperature : The sensor temperature is below the temperature range.
L L L
Brix : The ZERO button was pressed with something other than water on the sensor section.
Acid : The sensor was not empty when zero-setting was attempted.
Calibration was attempted with something other than the calibration solution.
A A A
Brix/Acid : The sample measured outside the measurement range
Temperature : The sensor temperature is above the temperature range.
H H H
Brix : Too much light is entering the sensor, and the instrument cannot measure
accurately.
(Shade the sample stage with your hand and take a measurement again.)
n n n
Sugar/Acid Ratio : When
the Sugar/Acid Ratio is
unable to be calculated.
o o o
The battery is low.
Lo
Error Messages
Addendum
Acid: Measuring Without using a Scale
For approximate measurement only
c
Necessary Materials
Measuring spoon 1mL, Beaker 100mL
[1]Acid: Dilution
Fruit juice
1ｍL
3.
Gently stir.
50ｍL
1.
Using the attahced measuring spoon,
place a level spoonful (1mL) of fruit
juicce in the attached beaker.
Proceed to
[3]Measuring
the Acidity
2.
Add purified water
to the beaker until the
total amout is 50mL.
1 2.3
20.4
℃
Brix%
0.25
Acid
Measurement of Brix Measurement of Acid
20.4
℃
12.3
Brix%
・The instrument measures the Brix in the sample solution, and the acidity in the 1: 50 dilution of the sample that is diluted
with purified water.
・Press the START button once to measure the Brix.
The Brix and the acidity of the sample (stock-solution) will be displayed at the end of the measurement.
・Press the ZERO button to perform zero-setting for either Brix or Acidity.
Zero-setting can be performed with water (for Brix) or air (for acidity)
・LCD Auto Shut-off
The instrument will turn itself off after 2 minutes of inactivity. To manually
turn it off, hold down the START button for more than 2 seconds.
Measurement is
displayed after
“---.”
The unit of Acid
is %.
Image is for explanation purposes only.
It may be different than the actual product purchased.
0.0 0
a
1.0 0
Measurement Value
Automatic Temperature Compensation
Discrepancies with titration
Due to the difference in measurement principles, readings
from the instrument may not match up exactly with the
readings by titration for certain samples. However,
correlation between the two testing methods can be seen.
For addition/subtraction (b) [Range: -5.00 to 5.00]
For coefficient (a) [Range: 0.50 to 5.00]
0.0 0
-b
0.0 0
a
1.0 0
L L L
20.4
℃
Brix%
0.3 0
Acid
0.0
Brix%
---
Acid
b
-b
1. Hold down
ZERO while it is
turned on.
(At measured
value displaying)
2. Press ZERO to
select either
addition (b) or
subtraction (-b).
“b” will appear
3. Press START
to confirm.
0.8
0.7
0.6
0.5
0.4
0.35 0.750.650.550.45
（ ｙ ）
（ⅹ）
An example of conversion chart
ｙ = a x + b
ｙ：titration readings
x：The instrument readings
a：coefficient (multiplication)
b：addition/subtraction number
Offset “b” = addition of 0.30
・The measurement range is shifted
according to the offset settings.
・Screen images when offset is on
Next is to
program a
coefficient.
5. Press START
to confirm the
addition/subtrac
tion number.
7. Press
START to
confirm the
coefficient.
For default
Press the R button
while setting up the
Off-Set feature.
0.0 0
-b
4. Enter the addition/subtraction
number.
The 1st digit: ZERO to change the number.
START to confirm and move to
the next digit.
The 2nd digit: ZERO to change the number.
START to confirm and move to
the next digit.
The 3rd digit: ZERO to change the number.
0.0 0
1.0 0
6. Enter the coefficient.
No plus sign will be
displayed.
For addition, only “b”
will appear.
The 3rd digit: 0 to 9
The 2nd digit: 0 to 9
The 1st digit: 0 to 5
The 1st digit: ZERO to change the number.
START to confirm and move to the next digit.
The 2nd digit: ZERO to change the number.
START to confirm and move to the next digit.
The 3rd digit: ZERO to change the number.
The 3rd digit: 0 to 9
The 2nd digit: 0 to 9
The 1st digit: 0 to 5
Coefficient
Factory default value
After zero-setting
with air
Acid: Offset Function
Specifications
Offset feature use
Create a conversion chart between the two testing methods.
Measurement range Brix 0.0 to 90.0% , 10.0 to 99.9℃
Acid 0.10 to 3.00%
Resolution Brix 0.1% Acid 0.01% 0.1℃ Sugar/Acid Ratio 0.01（0.00 to 99.99） 0.1（100.0 or more）
Measurement accuracy Brix ±0.2% Acid ±0.10% (0.10 to 1.00%) Relative precision ±10% (1.01% or more) ±1℃
Measurement time Brix ： Approx. 3 seconds Acid ： Approx. 2 seconds
Backlight The backlight stays on for 30 seconds after any button is pressed.
Output
NFC Forum Type 4 Tag ISO/IEC 14443 Type A
Output category Date Time, Brix [%], Acidity [%], Sugar/Acid Ratio, Temp [degC]
Acidity scale (e.g.) 2019/01/17 09:30:45, 3.71, 1.02, 3.64 21.3
Automatic temperature compensation range Brix ：10 to 100℃ Acid ：10 to 40℃
Ambient temperature range 10 to 40℃
International Protection class IP65
Power supply and Battery life Two (2) AAA alkaline batteries
Dimensions and Weight 55(W)×31(D)×109(H)mm , 100g (main unit only)
During measurement
(Acid)
b
The Automatic Temperature Compensation (ATC) feature is based on temperature detected by the thermo sensor located
near the sensor area.
ATC may not work correctly when the temperature of the sensor area is not the same as the actual temperature of the
sample. When measuring a hot or cold sample, let it sit on the sensor for approximately 20 seconds and measure, or take
multiple readings until measurements become stable.
The instrument
is calibrated
correctly.
Master Kit
Cat. No. 7103
Displays the measured values,
sensor temperature, and battery
indicator.
The instrument will turn itself off
after 2 minutes of inactivity.
To manually turn it off, hold down
the START button for more than
2 seconds.
Press to perform zero-setting.
Place sample on the sensor
located at the center of the
sample stage.
Press to take measurement.
To turn off the display, press and
hold for more than 2 seconds.
Place and remove batteries from
here.
Press the button to show the
sugar and acidity ratio.
Pocket Brix-Acidity Meter (Tomato)
PAL-
BX|ACID3
LCD
START Button
R Button
Battery Compartment
Sample Stage
ZERO Button
Lanyard Hole
Brix
Brix represents the weight of sucrose in 100 grams of sucrose solution as percentage by weight. When other dissolved solids
are present in the solution, Brix conversion may be applied.
Brix is a measure of the total dissolved solids in a solution and indicates the combined concentration of all soluble substances,
such as sugar, salt, protein, and acids.
Acid
This unit measures and determines the acidity through electrical conductivity.
Citric acid is the primary acid found in Tomato.
The instrument measures the total acidity in a sample and converts it into citric acid concentrations.
0.0
Brix%
20.4
℃
1.49
Acid
Measurement: not 1.49 (±0.15) Acid
Measurement: 1.49 (±0.15) Acid
7103-E06
2206K Printed in Japan
The warranty period will be extended from 1 year to 2 years when you register customer
information. ATAGO Logger NFC can also be downloaded at the same time.
Trouble scanning the code? Access this link
https://www.atago.net/ur/index.php?l=en
QR code
The warranty period extension method 1 year 2 years
The product is in conformity with the requirements of the EMC Directive 2004/108/EC.
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