pH
27
8.3. MEASUREMENT
For best results, it is recommended to:
y
Calibrate the probe before use and recalibrate periodically.
y
Keep the electrode hydrated.
y
Rinse the probe with the sample before use.
y
Soak in
MA9015
Storage solution for at least 1 hour before
measurement.
Remove the probe protective cap and place the tip approximately
4 cm (1 ½”) into the sample. It is recommended to wait for the
sample and the probe to reach the same temperature.
If necessary, press the RANGE/
to select pH mode. Allow the
reading to stabilize (stability indicator –
$
– is no longer displayed).
Measurement screen displays:
y
Measurement and temperature readings
y
Temperature compensation mode (MTC or ATC)
y
Buffers used (if option enabled in Setup)
y
Electrode condition (if option enabled in Setup)
y
On third LCD line: mV offset & slope values, time and date of
measurement, battery status. Use the
keys to scroll
between them.
Slope(%)
Offset(mV)
ºC
ATC
10.01
9.18
7.01
CAL
pH
MEASURE
25.8
97.4
9.97
-30
TIME
ºC
ATC
10.01
9.18
7.01
CAL
pH
MEASURE
25.8
1 5:0 7:4 1
9.97
ºC
ATC
10.01
9.18
7.01
CAL
pH
MEASURE
25.8
Y 9 5 %
9.97
B A T T E R
MTC Mode
1. Press CAL/EDIT and use the
keys to set the temperature
value manually.
2. Press GLP/ACCEPT to confirm or press ESC (or CAL/EDIT
again) to exit without saving.
ºC
MTC
12.45
10.01
7.01
4.01
1.68
CAL
pH
MEASURE
25.0
E M P.
9.97
E D I T T
ACCEPT
ºC
MTC
12.45
10.01
7.01
4.01
1.68
CAL
pH
MEASURE
25.9
E T M T C
9.95
S