Endress+Hauser Liquisys M CLM223 - Page 78

Commissioning Liquisys M CLM223/253
78 Endress+Hauser
Coding Field Range of
adjustment
(factory
settings in
bold)
Display Info
C112 The residual
coupling is
displayed (air set)
-80.0 to 80.0
μS/cm
C112
µS/cm
AirSetVal
5.3
A0009146-EN
Residual coupling of
measuring system (sensor
and transmitter).
C113 Calibration status
is displayed
o.k.
E xxx
C113
Status
o.k.
A0009147-EN
If the calibration status is
not o.k., a reason for the
error is provided on the
second line of the display.
C114 Store calibration
result?
Yes
No
New
C114
Store
yes
A0009148-EN
If C113 = E xxx, then only
No or New.
If New, return to C.
If Yes/No, return to
"Measurement".
C1(2) Cell constant
calibration
Airs = air set (1)
Cellc = cell
constant (2)
InstF =
installation
factor (3)
C1
Calibrat
Cellc
A0009143-EN
The sensor should be
immersed in such a way
that there is sufficient
distance to the vessel wall
(the installation factor has
no influence if a > 15 mm).
Immerse the sensor in the calibration solution.

The following section describes calibration
with the temperature-compensated
conductivity value of the reference solution.
If calibration is to be performed with the
uncompensated conductivity value, you
must set the temperature coefficient α to
zero.
A0025598
C121 Enter calibration
temperature (MTC)
25 °C
-35.0 to 250.0 °C
Only available if B1 = fixed.
C122 Enter the α value
of the calibration
solution
2.10 %/K
0.00 to 20.00
%/K
%/K
C122
alpha val
2.10
A0009150-EN
The value is given in the
Technical Information for
all E+H calibration
solutions. You can also use
the printed-on table to
calculate the value.
Set α to 0 for calibration
with uncompensated values.
C123 Enter the correct
conductivity value
of the calibration
solution
Current
measured value
0.0 μS/cm to
9999 mS/cm
C123
mS/cm
Real. val
10.30
A0009151-EN
A value close to the
subsequent operating range
should be selected.