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7.1
Rough alignment with laser and LED
Important:
Never look directly into the laser beam! The laser used has a power of
<= 5 mW at a wavelength of 650 nm and belongs to Class 3a (classification
according to DIN VDI 0837).
1.
Switch on the laser switch of the transmitter.
2.
Align the transmitter horizontally and vertically so that the laser beam
points to the centre of the receiver. Alignment is optimal when both LEDs
of the receiver stop lighting.
3.
To check: repeat steps 1 and 2 with the laser on the receiver.
The LED on the receiver gives you a first indication of the strength of the received
signal.
Alarm LED (red) and signal LED (yellow)
Both LEDs OFF
One LED ON
Both LEDs ON
7.2
Fine adjustment by voltage measurement
1.
When the transmitter and the receiver are firmly mounted at the installation
location, you can make the fine adjustment of the photoelctric beam by
measuring the voltage level.
2.
Switch your measuring device to the setting "DC" and select the lowest
voltage range (0-10 V DC).
3.
Measure the voltage on the receiver and compare the value with the table
below.
4.
Now adjust the horizontal angle of the receiver by hand until the measuring
device shows the highest value.
5.
Turn the adjusting screw to adjust the vertical angle of the receiver until the
measuring device shows the highest value.
6.
Compare the voltage with the values below.
7.
After achieving a good alignment quality, do not realign the transmitter or
receiver again.
Voltage level
5 V – 3.4 V
16
Signal strength
Optimal
Adjust
Realign
Quality of alignment
Optimal
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