Important: Please Read and Follow Instructions Carefully Before Initial Use
Place plenty of tap water and leave it for a while.
※Dry electrodes will result in abnormal measurement values.
Calibration points -1-
Calibration can be done at 3 points (pH 4.01, pH 6.86, and pH 9.18).
If the sample is above pH 6.9, calibration can be done at 2 points (pH 6.86 and pH 9.18).
If the sample is less than pH 6.9, calibration can be done at 2 points (pH 4.01 and pH 6.86).
Press the CAL button to perform calibration for either pH 4.01, pH 6.86, or pH 9.18.
＊If the power is not turned on, press the START button to turn on the power, then perform the following procedure.
Calibration points -2-
Calibration can be done at 3 points (pH 4.01, pH 7.00, and pH 10.01).
If the sample is above pH 7.0, calibration can be done at 2 points (pH 7.00 and pH 10.01).
If the sample is less than pH 7.0, calibration can be done at 2 points (pH 4.01 and pH 7.00).
Press the CAL button to perform calibration for either pH 4.01, pH 7.00, or pH 10.01.
＊If the power is not turned on, press the START button to turn on the power, then perform the following procedure.
*Turning excessively may
cause malfunction.
Open
Close
OP
EN
CLO
SE
O
P
E
N
C
L
O
S
E
【Caution】
◇ Do not scratch the electrode.
◇ The instrument is water-resistant, not waterproof, and
should not be submerged.
CAL
Place plenty of tap water
and leave it for a while.
◇The insufficient amount of sample will result
in abnormal measurement or calibration.
O
P
EN
CL
O
SE
OP
EN
CLO
SE
Press to set date, time,
and delete data history.
START button & CAL button
tap water
At least 0.6mL.
１．Wipe off the sample.
２．Apply tap water.
Wipe off the tap water.
（Remove the sample
（Repeat several times.）
with a plastic pipette.）
１．Wipe off the sample.
２．Rinse with tap water.
3．Wipe off the tap water.
（Remove the sample
with a plastic pipette.）
Or
PAL-ｐH
Cat.No. 4311
【Caution】
◇Perform calibration before initial use and at least once a month to maintain precision and accuracy.
◇Measure a standard calibration solution. When the measurement value falls outside of the expected range, perform
calibration.
◇When the time lapsed since last measurement is more than 2 weeks, it is recommended to calibrate the instrument.
◇If the ambient temperature changes during the daily work with this instrument, it needs the calibration again.
【Caution】
◇Do not splash water above 50℃. The plastic may warp, which may compromise the water resistance.
・When measuring hot samples, place only the necessary amount and do not let it overflow from the sample stage well.
・When hot water is necessary to clean off hardened samples, use water-soaked gauze around the sample stage and keep
hot water away from the body case.
◇In rare cases, a measurement value may be displayed even if there is not sample placed on the electrode section. In such
instances, simply place some sample on the electrode section and press the START button. Measurements will be taken normally.
◇
When measuring samples such as strong acids and high alkaline, take a quick measurement and rinse off any remaining
sample with tap water.
<LCD Auto Shut-off>
The instrument will turn itself off after 5 minutes of inactivity. To manually turn it off, hold down the START button for more
than 2 seconds.
The following messages alert the user when an operation has failed.
L o
The battery is low.
Display will turn off after 10 seconds.
L L L
The sample measured is outside the
measurement range.
The START button was pressed with nothing
on the electrode section.
H H H
The sample measured is outside the
measurement range.
The START button was pressed with nothing
on the electrode section.
A A A
The CAL button was pressed with nothing
on the electrode section.
E E E
The START button was pressed with nothing
on the electrode section.
The detection temperature was over 45℃. A
pH value was displayed (accuracy is not
guaranteed).
The detection temperature was less than
5℃. A pH value was displayed (accuracy is
not guaranteed).
H H H
LLL
Digital Hand-held "Pocket" pH Meter
R
ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance.
●
Safety Instructions
Read and follow all safety instructions before operating the instrument. Failure to comply with the following instructions may
result in personal injury or property damage.
WARNING
◇Ensure safety when handling hazardous materials. Observe precautionary measures and use protective equipment, Be
aware of the hazards of such chemicals and emergency response guidelines.
◇ATAGO may not be held liable for any injury or damage arising in connection with handling of hazardous materials during
the use of the instrument.
◇Do not drop the instrument or subject it to strong physical shock.
◇Do not attempt to repair, modify, or disassemble the instrument.
Thank you for purchasing the instrument. Carefully read and follow all instructions. Keep this manual for future reference.
A small amount of solution may leak from the reference electrode. This is normal and does not affect the unit's performance.
〈International Protection Classification IP65〉
◇The instrument is water-resistant, not waterproof, and should not be submerged.
〈Chemical Resistance of Body Case〉
◇The body case is made of PC. Do not expose it to water vapor or solvents. See the list of “Solvents Harmful to Body
Case.”
◇Do not use metal tools, such as a spoon, as they may scratch
the glass electrode, resulting in erroneous measurements.
◇Do not measure organic solvents, oils, adhesives, cement,
alcohol, surfactants,, polymer solvents or hydrogen flouride.
◇Do not use water above 50℃ to rinse the instrument.
◇Only use the specified battery type. Observe proper polarities,
properly aligning the anodes and cathodes.
◇Store the instrument away from direct sunlight/heat sources
and excessive amounts of dust/debris.
◇Do not expose the instrument to a rapid change in ambient
temperature.
◇Do not subject the instrument to strong vibration.
◇Do not subject the instrument to extreme cold temperature.
◇Do not place the instrument under anything heavy.
◇Loosen the battery compartment cover for air transportation.
CAUTION
◇Carefully read this manual to have basic knowledge of
the function of each component.
◇ATAGO is not liable for any loss and damage caused by
the measurement and use of this instrument.
◇ATAGO shall not be held responsible for any or all
damages that may result from using the instrument for
those other than its intended purpose (measurement of
pH level of a liquid sample).
◇If the standard solution for calibration comes in contact
with hands or skin, immediately rinse with plenty of
water.
◇
The glass electrode is fragile; be careful not to damage
it. Glass shards may cause injury.
【Caution】
◇ Please remove the tape in the battery compartment before first use.
◇ Fasten the battery compartment cover tightly to prevent water ingress or poor connection,
which will cause erroneous measurements. Push the cover in firmly and turn.
◇ When the O-ring on the cover is dirty or damaged, the water resistance may be compromised.
◇ When the battery icon indicates the low power level ( ), replace both batteries with a
brand new set of AAA alkaline batteries (1.5V).
◇ Static images may occasionally appear on LCD. Such retained pixel charges do not indicate a
faulty display, consume the battery power, or affect the instrument’s performance in any way.
◇ Check the expiration dates on batteries before purchase.
◇Calibrate the instrument after the batteries are replaced.
O-ring
1.
Insert a coin in the
groove on the battery
compartment cover. Turn
the coin counterclockwise
to remove the cover.
2.
Insert batteries,
observing the correct
polarity.
3.
Align the cover and push
it down.
4.
Close the battery
compartment cover by
pushing the cover in with a
coin in the groove and
turning it clockwise until it
stops.
Groove
Measurement results and remaining
battery charge are displayed.
Press to perform calibration.
Reference electrode
Glass electrode
Sample stage
CAL button
Lanyard hole
LCD
START button (Power button)
Place and remove batteries from here.
Battery compartment
Apply samples on the electrode in
the center of the sample stage.
Press to take measurements and hold
down to turn off the display.
Instruction Manual
Parts
Contents
Introduction
Measurement
Calibration
Replacing the Batteries
Cleaning
Error Messages
Main unit…1 Instruction Manual (this book)…1 Calibration Report …1 AAA batteries…2
Standard solution for calibration……… pH4.01…1 pH6.86…1 pH9.18…1 PAL Silicone Cover…1
For samples containing oils or fats:
Clean oily residues on the electrode section with
ethyl alcohol. Then rinse the electrode section with
tap water throughly.
Ethyl
alcohol
3.
After the
display flashes
"---",the
measurement
value is displayed.
2.
Press the
START button.
＊If the power is not turned on, press the START button to turn on the power, then perform the following procedure.
Repeat until measurement
values are stabilized.
1.
Place enough sample to
cover the entire electrode
section.
At least 0.6ｍL of sample
＜When measuring with higher precision＞
b.
Place the sample so
as to cover the entire
electrode section again.
a.
Wipe away the
sample.
At least 0.6ｍL of sample
Perform the following procedure (a) and
(b) before step 2.
At least 0.6mL
of standard
solution for calibration.
1.
Place enough
standard calibration
solution to cover the
entire electrode
section.
2.
Press the
CAL button.
3.
After the display flashes "---",the
standard calibration solution value will
flash approx 10 times, then change to
a fixed display of the value.
Calibrate at another point.
Flash Light up
（The displayed value is an example.）
Calibration is complete
Perform the following procedure (a) and
(b) before step 2.
＜When performing more accurate calibration＞
b.
Place the standard
solution for calibration so as
to cover the entire electrode
section again and leave it for
approx. 30 seconds.
a.
Wipe away the
standard calibration
solution.
At least 0.6mL of standard
solution for calibration.
Calibration and Measurement Guidelines
◇When the electrodes are dry after long
period of not being used
◇Do not damage the electrodes.
Do not use metal tools.
◇
Be careful not to
scratch the electrodes.
Tap water
Additional refills of standard solutions for calibration can be purchased from ATAGO (sold separately).
Contact ATAGO for recommended standard solutions.
[Part No.] Standard solution for calibration
RE-99210 pH4.01
(volume: 500mL per bottle)
RE-99211 pH6.86
(volume: 500mL per bottle)
RE-99213 pH9.18
(volume: 500mL per bottle)
RE-99230 10mL pH4.01/pH6.86/pH9.18
[Part No.] Standard solution for calibration
RE-99210 pH4.01
(volume: 500mL per bottle)
RE-99212 pH7.00
(volume: 500mL per bottle)
RE-99214 pH10.01
(volume: 500mL per bottle)
RE-99231
10mL pH4.01/pH7.00/pH10.01
CAL
CAL
-1-
-1-
6.86
7.00
1.
Press and hold the
CAL button for 5 seconds
(while the unit is powered on).
2.
Press the START button to Select
a Calibration point.
3.
Press the CAL button
to confirm the selection.
-2-
End
4.
Calibration.
Calibration points
-1-
4.01 6.86 9.18
Calibration points
-2-
4.01 7.00 10.01
Select the Calibration option, either 1 or 2, according to values of the standards.
Calibration point display
How to Select a Calibration Option
END display
Now you can
proceed to
Calibration.
◇
Initial measurements may fluctuate with hot or cold samples.
Wait for the instrument to acclimate to the sample
temperature, then press the START button. Alternatively,
press the START button multiple times until measurements
become stable.
⇑
Access now
4311-E12
In just-a-minute
1. It requires
only 1 minute!
Simply by answering questions, warranty period is extended from 1 year
to 2 years.
2. ATAGO Logger NFC can also be downloaded at the same time.
(The registration page can be accessed from ATAGO website.)
From
1
year to
2
years
Free Extended Warranty
