Rechner Sensors i-level+ Notice D'utilisation page 35

Test operation KFW-52...ETW (2 Switching Points
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 > 18 seconds. During the test mode the
LED is flashing with 0.4 Hz frequency and the outputs pulsate 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 + A2
ON
OFF
T 3s
0
T 3s
0
T
3s
0
8s 13s
13s
8s
13s
8s
Test function
t
18s
(LED flashing,
f = 0.4 Hz)
t
18s
f = 0.4 Hz
t
18s
35