16
message “
Err 1
” will be indicated and the meter will return to
the measurement mode. For example, a 40% tolerance of a 1413
μ
S/cm standard is 848
μ
S/cm to 1978
μ
S/cm.
• If the measured temperature (°C) of the calibration solution is
below 0 °C or above 50 °C, the error message “
Err 2
” will be
indicated and the meter will return to the measurement mode.
• Low conductivity standard solutions (less than 20
μ
S/cm)
are unstable and are very temperature dependent. As a result,
reproducible calibration results are challenging in the lowest
measurement range (0.00 to 20.0
μ
S/cm).
3.5 Manual Calibration
In Manual Calibration mode, the selection of conductivity calibration
standards is not limited to those listed previously in Table 1. This
example shows a manual calibration sequence using a 12.00 mS/cm
conductivity calibration standard.
1. If necessary, press the
MODE
key to select the conductivity
mode.
2. Rinse the probe thoroughly with
deionized water or a rinse solution.
Rinse with a small amount of calibration
standard.
3. Dip the probe into the calibration
standard. Stir gently with the probe to
create a homogeneous sample. Allow
time for the reading to stabilize.
4. Press
CAL
to enter the conductivity
calibration mode. The [
CA
] indicator
will appear brie
fl
y, and then a value will
appear
fl
ashing.
NOTE: To exit calibration without con
fi
rmation,
press CAL to return to the measurement mode.
5. When the value is stable, press
or
to adjust the value to match the
calibration standard.
6. Press
ENTER
to con
fi
rm the adjusted
value. [
CO
] will appear brie
fl
y indicating
that the calibration was successful. The
meter will return to measurement mode.
7. Repeat steps 1-6 as needed with
additional calibration standards.
mS
mS
mS
mS
CAL
HOLD
ENTER
Measurement Mode
Содержание CON 6 PLUS
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