Apera Instruments PH60Z-MS User manual
ISO 9001: 2015
aperainst.com V2.1
|Temperature
ATTENTION
NEVER use the product when it’s freezing cold. Let it warm to room temperature
before using.
NEVER use your nger to touch the pH glass membrane or use other materials to
rub it. Doing so could generate static electricity and cause measurement errors. To
remove extra water on electrode, just shake it o or blot dry with Kimwipe or clean
tissues.
HandlethepHelectrodewithcare.The sensor tip is made of glass, and will break
if dropped or bumped against hard objects.
Search “zentest” in Apple App Store or Google Play App Store to download the
latest App for your meter. Make sure the Bluetooth of your phone is turned on, then
go to ZenTest App, tap on the upper right corner, then select your meter to
connect (NOT the Demo device).
The content of this user mnual focus on how to operate through the meter's keypad.
For the guides on how to use the ZenTest App to achieve more functions, please
refer to the video tutorials by scanning the QR code below.
ShortPress — 1 second LongPress — 3 seconds
• When turned o, short press to turn on the tester; long press to
enter parameter setting.
• In calibration mode or parameter setting, short press to return to
measurement mode.
• In measurement mode, long press to turn o the tester, short press
to turn on/o backlight.
• In measurement mode, long press to turn on/off Bluetooth®
receiver. When it's turned on, will be flashing; when it's
connected to smartphone, will stay on.
• In parameter settings, short press to change parameter (Uni-
directional).
• Long press to enter calibration mode.
• In calibration mode, short press to conrm calibration.
• In measurement mode, when Automatic Hold is turned off, short
press to manually lock or unlock readings; when Automatic Hold is
triggerd, short press to unlock the reading.
.
.
.
4.1.4 Wait for the reading to stabilize (when stays on the screen), then short press
again to nish the rst point calibration (pressing too early could lead
to Er2 error). "7.00" will be ickering and the meter will return to measurement
mode. Icon (the middle point) will appear at the bottom left, indicating a
successful 1-point calibration.
4.1.5 To calibrate the 2nd point, rinse o the electrode with pure water and remove
excess water. Dip the electrode into pH 10.01 solution and repeat Step 4.1.3 to
4.1.4. "10.01" will be ickering and (the high point) will show up next to
, indicating a successful 2-point calibration.
4.1.6 To calibrate the 3rd point, rinse o the electrode with pure water and remove
excess water. Dip the electrode into pH 4.00 solution and make a quick stir, then
repeat Step 4.1.3 to 4.1.4. "4.00" will be flickering and (the low point) will
display next to and , indicating a successful 3-point calibration.
4.2 NotesaboutCalibration
4.2.1 Always start calibrating with pH 7.00 first. Perform the 2nd and 3rd point
calibration immediately after the 1st point is finished. Do NOT turn off the
meter before you calibrate the second or third point. Otherwise, after you
restart the meter and perform calibration in pH 4.00 or pH 10.01, Er1 error
will be generated and you will have to calibrate with pH 7.00 again. For more
troubleshooting tips with calibration, refer to Section 14.
4.3HowOftentoCalibratetheElectrode?
The frequency that you need to calibrate your pH Electrode depends on many factors such
as the nature of test samples, condition of electrodes, and the requirement of the accuracy.
For high-accuracy measurements (≤ ±0.02pH), the electrode should be calibrated before
every test; For general-accuracy measurements (≥ ±0.1 pH), calibrate the electrode every 1-2
weeks.
Inthefollowingcases,theelectrodemustbere-calibrated:
• The electrode hasn’t been used for a long time or a dierent electrode is connected.
• After measuring strong acid (pH<2) or strong base (pH>12) solutions.
• After measuring uoride-containing solution and strong organic solution.
• There is a significant temperature difference between the test sample and the buffer
solution.
temperature.
The meter is only as accurate as the electrode is clean. Always thoroughly rinse o
the electrode before and after each measurement with distilled water or deionized
water in a container or with a wash bottle.
To remove excessive water, just shake them o or blot dry with Kimwipe or lint-free
cloth. Neverrub the glass membrane of the electrode. Otherwise static electricity
will be generated and cause measurement error.
For tough contaminants staying on the glass membrane or junction, refer to the
following table for cleaning procedures:
TypeofContamination CleaningAgent SoakingTime
Lipophilic substances, e.g.
oil and fat deposits Home dish soap water 5 – 10 minutes
Proteins Apera Electrode Cleaning
Solution (SKU: AI1166) 30 – 60 minutes
Inorganic coatings such as
hydrocarbons
commercially available
glass cleaning solutions 5 – 10 minutes
Hard, scale-type calcium
deposits
Apera Electrode Cleaning
Solution (SKU: AI1166) 5 – 10 minutes
5.1HowtoTakepHMeasurement
5.1.1 Short press to power on. Remove the storage sleeve and rinse the electrode
in distilled/deionized water, then shake o the excess.
5.1.2 Submerge the electrode into your sample solution at least 1 inch deep, make a
quick stir and hold still. Record the reading as the pH measurement when it is
stabilized ( comes up and stays on screen).
5.2HowtoTakepHMeasurementinSmall-Volume
5.2.1 The LabSen 246-5 pH electrode can measure as low as
60 µL of water sample with the use of the semi-micro
container included in the test kit. Make sure to add in your
sample solution to the level where the junction (the white
spot) of the electrode can be submerged.
junction
Symbol Parameter Setting Contents Content Factory
Default
P1 Temperature Unit ˚C – ˚F ˚F
P2 Automatic Hold 5-20 seconds – O O
P3 Automatic Backlight O 1-8 minutes – O 1
P4 Automatic Power O 10-20 minutes – O 10
P5 pH Buer Series Selection USA – NIST USA
P6 pH Resolution 0.1 – 0.01 0.01
P7 pH Calibration Reminder H-hours D-Days
(set up in ZenTest App) /
P8 Back to factory default No – Yes No
TypeofContamination CleaningAgent SoakingTime
Alkaline coatings Apera Electrode Cleaning
Solution (SKU: AI1166) 5 – 10 minutes
Acidic coatings 0.1M NaOH solution 5 – 10 minutes
Sulde-containing
substances Thiourea
30– 60 minutes, leave until
junction discoloration
disappears.
Unknown substances Apera Electrode Cleaning
Solution (SKU: AI1166) 30 – 60 minutes
Use a soft brush to help thoroughly clean o the contaminants. After the cleaning
procedure, the pH electrode should always be soaked in 3M KCl solution for 12-24 hours
for rehydration. A re-calibration is also necessary before a new pH measurement.
press
press
pH
Temperature
Ceramic
11.1
Never twist the black
rubber part to prevent
damage.
11.5pHElectrodesCompatiblewiththeMeterforOtherApplications
LabSen 335 pH/Temp. Electrode for wastewater, suspensions, and emulsions
LabSen 246-5 pH/Temp. Electrode for small-volume solutions and test tubes
LabSen 845 pH/Temp. Electrode for strong alkaline and high-salinity solutions
LabSen 835 pH/Temp. Electrode for HF-containing and strong acidic solutions
LabSen 865 pH/Temp. Electrode for high temerature and caustic solutions
LabSen 855 pH/Temp. Electrode for viscous samples
LabSen 765 pH/Temp. Electrode for meats
PH60S-DE spear probe for foods e.g. cheese, sauce, milk, fruits, dough, etc.
GS2-E spear probe for soil direct test
PH60F-DE at probe for surface test
①②
③④
⑤
⑥
⑦
⑧
For how to x these errors, refer to Section 14 Troubleshooting Guide.
Trouble Reason HowtoFix
Calibration Error
Incorrect calibration
order (Er1)
Always calibrate pH 7 rst, then pH 4 or pH
10. Refer to Section 4.2.1.
(Er1)
Contaminated electrode
(Er1/Er4/Er5)
Thorougly clean off the electrode. Refer to
Section 6.
Aged electrode (Er1/
Er4/Er5) Replace the electrode.
Dried-out electrode
(Er1/Er4/Er5)
Soak in the soaking solution overnight to
restore.
Electrode is not in full
contact with solutions
(Er1/Er4/Er5)
Air bubbles around the
sensor (Er1/Er4/Er5)
Make a quick stir in the solution to remove air
bubbles.
Pressing too fast
(Er2)
Wait for the reading to be fully stabilized
before pressing to nish the calibration
(Er3)
Thorougly clean off the electrode. Refer to
Section 6.
(Er3)
(Er3)
Er4/Er5)
Trouble Reason HowtoFix
(Er1/Er4/Er5)
Functions PH60Z Meter ZenTest Mobile App
Display Basic digital
display
1.Basic Mode: digital display+calibration
info
(with manual data logger available)
2.Dial Mode: see reading change with
reading alarm range
(with manual data logger available)
3.Graph Mode: see the trend of reading
changes
(with auto. data logger available)
4.Table Mode: see real time measurement
data by every second
(with auto. data logger available)
Calibration Press buttons to
operate
Operate on smartphone following graphic
tutorial
Self-Diagnosis Er1 – Er6 icons Detailed problem analysis and solutions
Parameter
Settings
Press buttons to set
up (except for P7) All parameters can be set up in Settings.
Reading Alarm
The screen turns
red when alarm
triggered; cannot
be setup
Alarm display in all measurement modes,
and alarm range can be set up.
Data
Management N/A Manual or Auto. Datalogger; notes can be
added to saved data
Data Output N/A Share data on your smart phone via email
or other apps
maintenance
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