4.5.3 Isolated analog inputs 4…20mA AI1 & AI2
Fig. 11: Isolated analog inputs 4…20mA AI1 & AI2
AEGIS S has 2 isolated analog inputs 4…20 mA for direct connec‐
tion of chlorine, bromine, chlorine dioxide, and connection of pH
and ORP sensors via transmitter.
The selectable measuring ranges of the parameters are as follows:
Measuring ranges
Free chlorine
in mg/l
0,01…0,5 0,02…2 0,05...5 0,1…10 0,5…50 1…100
Total chlorine
in mg/l
0,01…0,5 0,02…2 0,05...5 0,1…10
Chlorine
dioxide in
mg/l
0,01…0,5 0,02…2 0,1…10
Free bromine
in mg/l
0,01…0,5 0,02…2 0,1…10
Temperature
in °C
-5…45
pH 1…12 0…14
ORP in mV 0…1000
Conductivity
in mS/cm
0…5 0…10 0…20 0…50 0…100 0…2000
Connection of the sensor to AI1:
1. 1. Connect the sensor (+) strand to AI1 + (5).
2. 2. Connect the sensor (-) strand to AI1 - (6).
Assembly and Installation
20