IFM Electronic Efector 200 OL Operating Instructions Manual page 10

Set the sensitivity with object.
2
Press once.
The yellow and green LEDs go out for approx. 1s,
then flash again alternately.
Set the sensitivity without object.
3
Press once.
The yellow and green LEDs go out for approx. 1s,
after approx 3s the green LED is on.
The unit is in the operating mode.
You can also proceed in reverse order: first setting without the object, then with
the object.
If the setting of the sensitivity is not possible (e.g. object signal and
background signal are about the same), the red LED flashes after
step 3 for approx. 2s. The unit then passes into the operating
mode with the sensitivity being unchanged.
If the setting button is not activated for 15 minutes during the
programming process, the unit passes automatically into the
operating mode with the sensitivity being unchanged.
10
receiver
receiver
transmitter
transmitter