Connection Of A Sensor With Compressed Air Cleaning - Xylem WTW DIQ/S 281 Operating Manual

DIQ/S 281
Maximum total cable length
SNCIQ(/UG) plus SACIQ = 250 m
Connection
scheme of valve
control
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3.11.2 Connection of a sensor with compressed air cleaning

Example:
Relay 1 controls the cleaning of the sensor.
In this configuration, the free switching contact (here: R2) may be used to switch
SELV voltages only.
No free wires are allowed to project into the housing. Oth-
erwise, there is a danger that areas safe to contact could
come into contact with dangerous voltages. Always cut
off any wires that are not in use as closely as possible to
the cable gland.
08/2020
DIQ/S 281(/24V)
M C S
DIQ/S 281 ESC
OK
UNIVERSAL TRANSMITTER UNIVERSAL TRANSMITTER
USB
SNCIQ(/UG)
DIQ/JB
SACIQ
Sensor
Installation
Valve control line
DIQ/CHV
Air
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