Hach-Lange HQD - Conductivity probe CDC User Manual
Page 3

DOC272.53.80022
3
Calibration Notes
•
Probes are initially calibrated at the factory. However, regular calibration by the user is
recommended for the best measurement accuracy.
•
The calibration is recorded in the probe and the data log. The calibration is also sent
to a PC, printer, or flash memory stick if connected.
•
The cell constant is derived from the calibration standard.
•
Additional conductivity standards can be selected in the Calibration Options menu.
•
Perform a user calibration for applications that require greater accuracy and precision.
1.
Connect the
probe to the meter.
2.
Select
Calibrate. The
display will show the
required
conductivity
standard solution.
3.
Rinse the probe
with deionized
water. Put it in the
standard solution so
that the temperature
sensor is completely
submerged.
4.
Select Read.
The display will
show Stabilizing...
and a progress bar
as the probe
stabilizes.
5.
When the value
reaches
stabilization, the
temperature
corrected value will
display. Push Done
to view the
calibration
summary.
6.
Push
STORE
to
accept the
calibration and
return to the
measurement
mode.
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