Operating Instructions
Conductivity measurement
CombiLyz AFI4/AFI5
Inductive conductivity transmitter
Factory settings
Output mode
Conductivity
Temperature output
0 ... 150 °C
Conductivity range 1 0 ... 200 mS/cm
Output damping
0.0 s
Conductivity range 2 0 ... 20 mS/cm
Temperature com-
pensation range 1–4
2.0 % FSR/K
Conductivity range 3 0 ... 2 mS/cm
Lower output current
limit
3.7 mA
Conductivity range 4 0 ... 500 µS/cm
Upper output current
limit
21.0 mA
15.
Configuration overview
15.1 Measurement ranges and basic principles
Temperature dependence
Medium
% / K
Sensor setting
% / K
Acid
1.0 … 1.6
Factory setting
2.0
Base
1.8 … 2.2
Selectable range
0.0 … 5.0
Saline solution
2.2 … 3.0
Neutral water
2.0
Selectable conductivity ranges
0 … 500 µS/cm
0 … 5 mS/cm
0 … 50 mS/cm
0 … 500 mS/cm
0 … 1 mS/cm
0 … 10 mS/cm
0 … 100 mS/cm
0 … 1 S/cm
0 … 2 mS/cm
0 … 20 mS/cm
0 … 200 mS/cm
0 … 3 mS/cm
0 … 30 mS/cm
0 … 300 mS/cm
Selectable concentration ranges
NaOH (caustic soda)
0 … 12 % by weight (0 … 90 °C)
20 … 50 % by weight (0 … 90 °C)
HNO
3
(nitric acid)
0 … 25 % by weight (0 … 80 °C)
36 … 82 % by weight (0 … 80 °C)
Customer defined media (30 point lookup table)
Settings for the external input for range selection
Range
S1
S2
1
N.C.
N.C.
2
24 V DC
N.C.
3
N.C.
24 V DC
4
24 V DC
24 V DC
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