Rechner Sensors i-level+ Notice D'utilisation page 31

Test operation KFW-51...ETW (1 Switching Point)
The level probe can be changed to test mode at any time. With this it is easy to check the installation of
the level probe.
Activation test mode:
Connect the grey wire (ETW) with the supply voltage (+) and hold it > 13 seconds. During the test mode the
LED is flashing with 0.4 Hz frequency and the output pulsates accordingly.
With release of the grey wire (ETW) the test mode is stopped and the level probe returns to the previous
adjusted state.
ETW
H
L
LED
ON
OFF
A1
ON
OFF
T
3s
0
T 3s
0
T 3s
0
Test function
13s
8s
(LED flashing, f = 0.4 Hz)
8s 13s
13s
8s
t
t
f = 0.4 Hz
t
31