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6.2.1 Setting unsuccessful
> The yellow LED flashes quickly, 8 Hz�
> The sensor returns to the normal operating mode with unchanged values�
Possible causes
• Insufficient difference in measurements�
• Max� programming time of 15 min� exceeded�
6.3 Setting of maximum sensitivity
► Align the sensor so that no light is reflected�
The sensor is to switch when the contrast mark is detected
► First press for 2s [OUT on] and then [OUT off]�
The sensor is to switch when the contrast mark is not detected
► First press 2s [OUT off], then [OUT on]�
After setting the maximum sensitivity, the transmitter colour corresponds to the
factory setting (red)�
This procedure applies if the signal from the mark is greater than the
background signal� If the signal from the mark is lower than the background
signal, the buttons need to be pressed in reverse order�
6.4 Electronic lock
The unit can be locked electronically to prevent unintentional settings� On delivery
the unit is not locked�
► Press [OUT on] and [OUT off] simultaneously for 10 s�
> Acknowledgement is indicated by a change of the LED
status�
► To unlock repeat this step�
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