Operation; Calibration - Waltron 9096 User Manual

Operation

6 OPERATION
The analyzer is always in "online" mode and disaplying current conductivity measurements.

CALIBRATION

6.1
A process calibration can be performed for both the specific and cation conductivity sensors of
the analyzer. The calibration will require the known specific and cation conductivity readings of
the measured sample in uS/cm from a secondary measurement device. These readings will be
used to calculate the new cell constant which can then be input into the analyzer. The formula for
calculating the new cell constant is as follows:
where k is the new cell constant that will be calculated, k
new
programmed into the analyzer, κ
measurement device, and κ
Action
Determine the current
cell constant value of
the conductivity sensor.
Follow the instructions
in section 5.4.2 for the
calibration menu of the
user interface to acess
the calibration values
page.
The percentage listed
for Rel. cell const. 1
should be noted and will
be the value for k in
old
the equation.
Obtain the known
conductivity of the
measured sample (in
uS/cm).
This will be the value for
κ
in the equation.
new
43
�� = ��
������
is the known conductivity reading from the secondary
new
is the conductivity reading that the analyzer is currently displaying.
old
Use of a secondary conductivity measurement device is required.
��
������
∗ ( )
������
��
������
is the existing cell constant
old
Display
Waltron User Manual 101-046-B.3
9096 Degassed Cation Conductivity Analyzer