User guide

29-3
Electronic flow monitors
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Electronic flow monitors
Air flow monitor consisting of two parts: the sensor type SLF.. and the belonging evaluation unit type
ASL... For air flow monitoring in air-conditioning systems, ventilation and cooling systems and
wherever flow processes in air or neutral gases have to be detected.
Sensor
Evaluation Unit
The high reliable compact electronic flow switch is designed for detecting air flow in ducts.
As soon as medium flow speed exceeds or falls under a customer adjusted value, the device
will switch a electric circuit.
Process connection PG7 + mounting flange
Electronical air flow switch for air (ASL)
Protection class sensor: IP32
Output signal evaluation unit: relay SPST 8A, 250Vac, switch point adjustable
from 0,1..20 m/s air speed
Additional description Media temperature at sensor: -20..120
o
C.
Mounting place Immersion depth Power supply Type
mm Vac; VA
air duct 35 –; – SLF3
Mounting place Immersion depth Power supply Type
mm Vac; VA
universal – 24; 3 ASL453/24
universal – 230; 3 ASL453
Electronic flow switches for air, compact version (KSL)
Protection class IP65
Switch function/capacity SPDT, capacity 250 Vac, 10(2) A
Immersion depth 115 mm
Setpoint range 0,1..30 m/s
Max. media temperature 80
o
C
Max. pressure 10 bar
Additional description LED's available for indication of power supply and switch status.
Power supply Type
Vac; VA
24; 10 KSL24
230; 10 KSL230