Mycom S CLM 153
7 Maintenance
Hauser
85
7.1.4
Simulation of inductive sensors for device test
An inductive sensor alone cannot be simulated using resistances. However, you can
use equivalent resistances to check the entire system CLM 153 (inductive) including the
sensor. Please pay attention to the cell constant
k
(e.g.
k
nominal
= 2 for CLS 50,
k
nominal
= 5.9 for CLS 52).
For an exact simulation, use the cell constant actually used (can be read off in
Field C124) for calculating the reading:
Display cond.
[mS/cm]
=
k
·1/R
[k
Ω
]
Conductivity
If the cell constant
k
is set to the value in
the second column of the table on the
right, then the conductivity values of this
table apply.
Otherwise the following applies:
Conductivity
[mS/cm]
=
k
·1/R
[k
Ω
]
Resistance R
Cell constant k
Display with
conductivity
10
Ω
1 cm-1
100 mS/cm
10 cm-1
1000 mS/cm
100
Ω
0.1 cm-1
1 mS/cm
1 cm-1
10 mS/cm
10 cm-1
100 mS/cm
1000
Ω
0.1 cm-1
0.1 mS/cm
1 cm-1
1 mS/cm
10 cm-1
10 mS/cm
10 k
Ω
0.01 cm-1
1 µS/cm
0.1 cm-1
10 µS/cm
1 cm-1
100 µS/cm
10 cm-1
1 mS/cm
100 k
Ω
0.01 cm-1
0.1 mS/cm
0.1 cm-1
1 µS/cm
1 cm-1
10 µS/cm
1 M
Ω
0.01 cm-1
0.01 µS/cm
0.1 cm-1
0.1 µS/cm
1 cm-1
1 µS/cm
10 M
Ω
0.01 cm-1
0.001 µS/cm
0.1 cm-1
0.01 µS/cm
Reference values for the simulation CLS 52 at
25 °C:
Simulation
resistance R
Cell constant
k
Display cond.
Carrying out the simulation:
Guide a line through the opening of the
sensor and connect it to a resistance
decade, for example.
6.8
Ω
5.90 cm-1
8.68 mS/cm
33
Ω
5.90 cm-1
178.8 mS/cm
330
Ω
5.90 cm-1
17.88 mS/cm
3.3 k
Ω
5.90 cm-1
1.788 mS/cm
