Xylem Lowara SM30 Manual De Instalación, Funcionamiento Y Mantenimiento página 37

4 SENSOR F.S.
5 LACK OF WATER Device used to check low level/low
6 PROBES
SENSIVITY
7 FEEDBACK
Regulating probe sensitivity
Regulation is obtained by setting the sensitivity value. For a new regulation, proceed as follows:
Check that the water level covers the probes.
Ensure that L.O.W. AL.DELAY is set at zero.
Vary the sensitivity level slightly until the red "LOW WATER" led is lit and the respective alarm
message appears.
Slightly increase the numerical value of sensitivity until the red "LOW WATER" led goes out.
Sensor full scale: this is defined by
the type of sensor chosen.
Pressure
0-10 bar
0-16 bar
0-25 bar
0-50 bar
Level
Ultrasound: 0-15 m
Piezometric: 0-10 m
Temperature
-20 + 100 °C
Flow
DN80 3.62-181 mc/h
DN100 5.65-283 mc/h
DN125 8.84-442 mc/h
DN150 12.7-637 mc/h
DN200 22.6-1131 mc/h
DN250 35.3-1727 mc/h
pressure with
probes/float/minimum pressure
switch connected to the dedicated
terminals HIGH (22), LOW(23)
and COM(24).
Regulating probe sensitivity
according to water conductivity.
Setting the analog signal used as
system feedback.
If AI1 or AI2 is selected, in case of
a sensor fault feedback is
automatically provided by the
alternative sensor.
0-10 bar
0-16 bar
0-25 bar
0-50 bar
Ultras 0-15 m
Piezom 0-10 m
NO PROBES
PR.SW/FLOAT SW
THREE PROBES
5-100 kOhm
AI1
AI2
AI1/AI2
en
0-10.00 bar
PR.SW/FL
OAT SW
50 kOhm
AI1/AI2
37