33
SECTION 3,
continued
3.4
Measuring Samples
After successful calibration, follow the steps below to measure
samples. See the electrode manual for more information and
specific procedures that use the electrode.
1. Rinse the electrode in deionized water.
2. Place the electrode in the sample. Press
READ
.
Stabilizing...
will appear, along with the sample temperature and the pH or
mV reading. These values may fluctuate until the system
is stable.
3. When the reading is stable
Stabilizing...
will disappear. If the
Display Lock is enabled, the display will “lock in” on the pH
or mV and sample temperature. If the Display Lock is off, the
display will show the current reading and temperature, but the
values may fluctuate.
4. Record or store the pH or mV value.
5. Remove the electrode from the sample, rinse with deionized
water and place the electrode in the next sample. Repeat
steps 2–4 for each sample.
6. When finished, turn the meter off. Rinse the electrode with
deionized water and gently blot dry. Replace the protective
cap on the electrode and put the electrode in the electrode
holder. Consult the electrode manual for storage instructions.
3.5
Millivolt Measurement
The meter can measure absolute millivolts (mV). To display the
current millivolt reading, press the
mV
key from the pH Reading
mode. The mV value is displayed with
mV
in the units field.
Absolute millivolts are displayed with 0.1 mV resolution in the
range of -2000 to 2000.
