6.
Push
Read
.
Stir gently. The
display will show
"Stabilizing" and a
progress bar as
the probe
stabilizes in the
standard. The
display shows the
buffer that has just
been read and
shows the
temperature
corrected pH
value when the
reading is stable.
7.
Repeat steps
4 - 6 until the
minimum number
of calibration
points specified in
the current
method have been
collected.
8.
Push
Done
to
view the
calibration
summary. The
display will not
show Done until
the minimum
number of
calibration points
have been
collected.
9.
Push
Store
to
accept the
calibration and go
back to
measurement
mode.
Sample measurement
Before measurement:
The probe must have the correct service-life time stamp. Set the date and time in the meter before the probe is attached.
If complete traceability is necessary, enter a sample ID and operator ID before measurement. Refer to the HQd meter
manual for more information.
Regular calibration is required for the best measurement accuracy (refer to
Calibration
on page 3).
Prepare the probe for use (refer to
Preparation for use
on page 2).
Measurement notes:
•
Data is automatically stored in the data log when
Press to Read
or
Interval
is
selected in the Measurement Mode. When
Continuous
is selected, data will only be
stored when
Store
is selected.
•
Air bubbles under the sensor tip when submerged can cause slow response or error
in measurement. If bubbles are present, gently shake the probe until bubbles are
removed.
•
If a measurement error occurs, refer to
Troubleshooting
on page 11.
4