CombiLyz AFI4/AFI5
Inductive conductivity transmitter
2.
Construction and function
7
6
Fig. 1. Construction
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1
A
D
D
8
7
Fig. 2. Measuring principle
3.
Symbols in warning signs
Symbol
Warning term
DANGER
WARNING
CAUTION
–
NOTICE
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Conductivity measurement
1
2
3
4
5
2
CPU
3
A
4
5
6
Explanation
In situations which cause death or serious injuries.
In situations which can cause death or serious injuries.
In situations which can cause light or medium injuries.
For material damage.
Operating Instructions
1
DFON display
2
Connection for temperature and relay signal
3
Thread for mounting the AFIx
4
Hole for medium (conductivity measuring)
5
Tip with temperature sensor
6
Measuring cell
7
Connection for conductivity and
concentration signal
The CombiLyz AFIx consists of a conductivity
sensor, temperature sensor and a transmitter.
The device measures conductivity/concentration
and temperature of liquid media.
Programming can be done via the touch screen
display or via the FlexProgrammer 9701. During
operation, the display shows information regarding
measured values, alarms and other data
as specified during setup.
The 2 connectors are used to transfer sensor data,
alarms, control signals and programming data.
1
Oscillator
2
Range setting input S1 and S2
3
Conductivity/Concentration out (4 ... 20 mA)
4
Temperature out (4 ... 20 mA)
5
Secondary coil
6
Pt100
7
Medium
8
Primary coil
Around the hole inside the measuring cell there
are 2 coils. The primary coil is supplied with
AC voltage and the secondary coil measures
the inducted current in the liquid medium inside
the hole. The temperature of the liquid medium
is measured via a Pt100 sensor in the tip of
the measuring cell. This allows temperature
compensation of the conductivity signal.
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