03
PHscan10
PHscan10
04
Cal
Cal
Enter
Hold
Meas
—
Press MEAS key to
turn on the tester, the meter shows measured
values.
—
—
If
—
—
Press and hold the CAL key
the display shows “CAL 7-4”. If
necessary, press CAL key again, the display shows “CAL 10-7”.
Choose
the pH buffer option
you want to use, press
ENTER key to confirm.
The tester shows first calibration point, pH7.00.
4. Dip the electrode into the pH7.00 standard buffer solution, the end of the
electrode must be completely immersed into the calibration solution. Stir
the tester gently.
Power On/Off
Press and hold the MEAS key for 5 seconds, the tester will turn off.
you do not press any key for 8 minutes, the tester will
automatically turn
off to conserve energy.
Calibration
The tester must be calibrated
prior
to first use or new electrode replaced.
To ensure accuracy, regular calibration is recommended.
Do
not
reuse
calibration
solution
after
calibration, contaminants
in
solution
will
affect the calibration and eventually the accuracy of the measurement.
1. Rinse the
pH
electrode
with
distilled water,
press MEAS key
to turn
on
the
tester.
2.
for 3 seconds,
3.
Enter
or
Enter
Enter
CAL
PHscan
POCKET PH TESTER
5. Press ENTER
key to confirm.
W
Dip the electrode into the pH4.01
or 10.01 standard buffer solution. Stir the tester gently.
7. Press ENTER
key to confirm.
W
ait for the measured value to stabilize, the
reading will flash 3 times indicating that first
calibration point
is
completed.
The
tester
automatically
shows
“
CAL
4
”
or
“
CAL
10
”
depending
on
the
option
selected in the step 2.
6. Rinse the electrode with distilled water.
ait for the measured value to stabilize, the
reading
will
flash
3
times,
“CAL”
indicator
disappears
from
display,
the
tester
returns to measurement mode. Calibration is completed.
EXIT THE CALIBRATION:
During
the
calibration,
if you
want
to
exit
calibration
mode,
p
ress
MEAS
key,
the tester returns to measurement mode immediately.
