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Operating Instructions USi
281114 v1.3
Polymer Electric
Adjust settings
The switch points can be set between 1 and 250 cm.
The “Set Switch Points” function is always available with a USi that is ready for
operation.
The preset standard settings for all sensors are switch points SP1 =
1 cm
and SP2
=
200 cm
.
This is how to set a different switch point:
1. Measure the desired distance, starting at the active surface of the sensor
(ultrasonic transducer).
2. Make sure that there is nothing in the detection
fi
eld, which should usually not
be located there (this includes you and your limbs!).
3. Have a suitable reference object (e.g. cardboard carton 10 x 10 cm) ready.
4. Keep the “Teach
In” button pressed down: The green LED “Power” starts
fl
ash-
ing slowly (1
Hz), turns of for 2
s (while the yellow LEDs “OUT are lit), starts to
fl
ash slowly again (1
Hz) and turns off again.
Now the yellow LEDs “OUT
1.X” and “OUT
2.X” are alternately lit. The USi is await-
ing your decision: Do you want to set a switch point for Sensor
1 or for
Sensor
2?
5. Release the “Teach
In” button as soon as all the yellow LEDs “OUT” of the
corresponding sensor is lit, for the switch points that you want to set.
Now the yellow LED “OUT X.2” is lit and the green LED “Power”
fl
ashes quickly
(5 Hz). The USi now expects your con
fi
rmation for switch point
SP2: Is the refer-
ence object at the desired distance in the detection
fi
eld?
6. Place the reference object at the desired distance in the detection
fi
eld.
If the USi recognises the reference object, the green LED “Power” changes from
quick
fl
ashing (5
Hz) to being continuously lit.
7. Press the “Teach
In” button (> 0.5 s), and the USi overwrites the previous switch
point
SP2 with the determined distance to the reference object.
Now the yellow LED “OUT X.1” is lit and the green LED “Power”
fl
ashes quickly
(5 Hz). The USi now expects your con
fi
rmation for switch point
SP1: Is the refer-
ence object at the desired distance in the detection
fi
eld?
TIP: Operating Mode 1 Range.
If you acknowledge the switch point SP1 on the
USi without setting a reference object in the detection
fi
eld, the USi automatically
saves the minimum distance of 1 cm for switch point SP1. An automatic switch to
operating mode 1 range occurs.