ATAGO PAL-BXIACID3 Instruction Manual

7103-E06
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Pocket Brix-Acidity Meter (Tomato)
PAL- BX|ACID3
Cat. No. 7103
Parts
LCD
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.
START Button
Press to take measurement.
To turn off the display, press and
hold for more than 2 seconds.
R Button
Press the button to show the
sugar and acidity ratio.
Battery Compartment
Place and remove batteries from
here.
Image is for explanation purposes only.
It may be different than the actual product purchased.
Contents
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）
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
ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance.

Quick Tips

・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.
Measurement of Brix Measurement of Acid
℃ ℃
20.4 20.4
1 2.3 Brix%
12.3 Brix%
Acid
0.25
・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 Value
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.
Automatic Temperature Compensation
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.
2 years Preparation

Acid: Zero-setting

1. 2.
Clean the
sensor with START button
water. (with nothing on
QR code
Dry the area the sensor).
with tissues
thoroughly.
R "LLL" will appear.
Instruction Manual
Master Kit

Brix: Zero-setting

1.
Apply tap/purified
water.
Sample Stage
At least 0.3mL
Place sample on the sensor
located at the center of the
sample stage.
ZERO Button
Press to perform zero-setting.
Measurement

[1]Acid: Dilution

CAbout the Digital Scale
c Necessary Materials Digital scale, Beaker 100mL
1.
Press the
POWER Button.
Lanyard Hole
0.00

[2]Measuring the Brix

1.
Clean the sensor
with water.
Dry the area with
tissues thoroughly.

[3]Measuring the Acidity

5.
Apply some diluted
sample (as shown in [1]).
At least 0.6mL
Cleaning
・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.
Addendum
Acid: Measuring Without using a Scale
For approximate measurement only
[1]Acid: Dilution
c Necessary Materials Measuring spoon 1mL, Beaker 100mL
1.
Using the attahced measuring spoon,
place a level spoonful (1mL) of fruit
juicce in the attached beaker.

Zero-setting and Measurement

mRecommended on a daily basis.
3. 4.
Press the Press the "000" will appear.
START button. Measurement: not 0.00 Acid
0 0 0
－Zero-setting is required.－
Press the ZERO button
(with nothing on the
Flash
sensor).
Measurement: 0.00 Acid
The instrument
20.4 ℃
20.4 ℃ Proceed to Brix: Zero-setting.
Brix%
L L L Brix% is zero-set L L L
correctly. 0.0 0 Acid
2. 3.
Press the START "000" will appear.
button. Measurement: not 0.0 Brix
0 0 0
－Zero-setting is required.－
Press the ZERO button.
Flash
Measurement: 0.0 Brix
The instrument is
20.4 ℃
Proceed to measurement.
zero-set correctly. Brix%
0.0
Press the START
button.
2. 3. 4.
Place the beaker on Pour 1.00g of fruit juice Add purified water
the scale and zero set into the beaker. until the total weight is
(tare). cAny amount of sample 50.00g.
（Press the Zero-set can be made as long as the
button (tare)） dilution ration is 1:50. We
Purified water
recommend 1.00g of sample
to keep accuracy consistent.
Fruit juice
T
0.00
50.00
1.00
2. 3.
Apply some sample Press the Measurement is
(undiluted). START button. displayed after
"---."
20.4 ℃
12.3 Brix%
cIn case "LLL" is
At least 0.3mL displayed, add sample
and measure the Brix
again. Remove sample.
6.
Press the Measurement is

Sugar/Acid Ratio Display

Press the R button when the
START button. displayed after
20.4 ℃
Brix or Acidity is displayed to
"---."
1 2.3 Brix%
The unit of Acid show the sugar and acidity
Acid
0.25
ratio. Sugar/Acid ratio = Brix% /
is %.
Acidity%
cThe measurement is the value
of the sample (stock-solution).
cThe displayed value is the
temperature at the measurement of
cPress the R button to
acidity.
return to the measurement
value display.
2. 3.
Add purified water Gently stir.
to the beaker until the
total amout is 50mL.
Proceed to
Fruit juice
[3]Measuring
1ｍL 50ｍL
the Acidity

Acid: Checking with Reference Solution

When there is any doubt regarding accuracy of measurement results, adjust the reference value according to the following procedure.
cThe reference solution is available from ATAGO.
Acid: Checking with Reference Solution
1. 2.
Clean the Press the ZERO
sensor with button (with nothing
20.4 ℃
Brix%
water. on the sensor) to
Dry the area zero-set.
Acid 0 0 0 Acid
with tissues
Flash Light up
thoroughly.
"000" will appear.
(Press the
START button
20.4 ℃
to turn on the
instrument.) Acid
0 0 0
Flash Light up

Acid: Calibration

℃ 6.
20.4
Apply the reference solution.
Brix%
0 0 0 Brix%
Turn on the instrument.
Acid
Press the START and ZERO
Light up
buttons simultaneously.
The following messages alert the user when an operation has failed.
A A A 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.
L L L 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.
H H H Brix/Acid : The sample measured outside the measurement range
Temperature : The sensor temperature is above the temperature range.
n n n
Brix : Too much light is entering the sensor, and the instrument cannot measure
5. accurately.
Gently stir.
(Shade the sample stage with your hand and take a measurement again.)
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.
Offset feature use
Create a conversion chart between the two testing methods.
For addition/subtraction (b) [Range: -5.00 to 5.00]
1. 2.
Hold down Press ZERO to
ZERO while it is select either
turned on. addition (b) or
(At measured subtraction (-b).
4.
Cleaning
value displaying)
Clean the sensor with
water.
b -b
Dry the area with
tissues thoroughly.
"b" will appear No plus sign will be
displayed.
For coefficient (a) [Range: 0.50 to 5.00]
6.
Enter the coefficient.
a
The 3rd digit: 0 to 9
0.0 0
The 2nd digit: 0 to 9
1.0 0
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.
20.4 ℃ START to confirm and move to the next digit.
49.20 The 3rd digit: ZERO to change the number.
Ratio
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
Acidity scale
Automatic temperature compensation range
Ambient temperature range
International Protection class
Power supply and Battery life
Dimensions and Weight
The product is in conformity with the requirements of the EMC Directive 2004/108/EC.
Part No. RE-130004 Reference solution (0.04% Citric acid solution)
3. 4. 5.
Apply the Press the START
reference button 2 times
Measurement: not 1.49 (±0.15) Acid
solution.
20.4 ℃
*Reference 0.0 Brix% Calibration is required.
solution
Measurement: 1.49 (±0.15) Acid
(0.04% (g/100g)
Citric acid
cBrix (%)
The instrument
20.4 ℃
solution) may not be 0.0%
is calibrated
0.0 Brix%
(this will not
At least 0.6mL
correctly.
affect accuracy 1.49 Acid
of measurement
cBrix (%) may not be 0.0% (this
values).
will not affect accuracy of
measurement values).
"CCC"
20.4 ℃
will appear.
Acid
C C C
Flash Light up
Error Messages
o o o
Sugar/Acid Ratio : When
the Sugar/Acid Ratio is
unable to be calculated.
Lo
The battery is low.

Acid: Offset Function

（ An example of conversion chart
ｙ
ｙ = a x + b ） 0.8
0.7
ｙ：titration readings
x：The instrument readings
0.6
a：coefficient (multiplication)
0.5
b：addition/subtraction number
0.4
0.35 0.45 0.55 0.65 0.75
（ⅹ）
3. 4. 5.
Press START Enter the addition/subtraction Press START
to confirm. number. to confirm the
addition/subtrac
-b
The 3rd digit: 0 to 9
0.0 0
The 2nd digit: 0 to 9 tion number.
The 1st digit: 0 to 5
Next is to
program a
For addition, only "b"
The 1st digit: ZERO to change the number.
coefficient.
will appear.
START to confirm and move to
Coefficient
-b the next digit.
0.0 0
The 2nd digit: ZERO to change the number.
a
START to confirm and move to
0.0 0
the next digit.
1.0 0
The 3rd digit: ZERO to change the number.
・The measurement range is shifted
7.
Press For default
according to the offset settings.
START to Press the R button
・Screen images when offset is on
while setting up the
confirm the
coefficient. During measurement Off-Set feature.
0.0 Brix%
(Acid)
Acid
---
Factory default value
20.4 ℃ After zero-setting b
Brix% with air
L L L 0.0 0
0.3 0 Acid
1.0 0
Offset "b" = addition of 0.30

Specifications

Date Time, Brix [%], Acidity [%], Sugar/Acid Ratio, Temp [degC]
(e.g.) 2019/01/17 09:30:45, 3.71, 1.02, 3.64 21.3
Brix ：10 to 100℃ Acid ：10 to 40℃
10 to 40℃
IP65
Two (2) AAA alkaline batteries
55(W)×31(D)×109(H)mm , 100g (main unit only)
2206K Printed in Japan