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Operation
6.8
Light source
Fig. 14 Analog signal behavior with different target positions
Output gain V
MR = Measuring range
x [mm] =
Fig. 15 Calculation of a value
optoCONTROL 1200/1201
Analog Output
Target
Receiver
10.0 V = 100 % measuring range (no target)
OUT
MR [mm] * (10 V - V
)
OUT
10 V
V
10 V
Receiver fully
exposed
0 %
Measuring
max.
range
0 %
Measuring
max.
range
Receiver completely
blocked
0 %
Measuring
max.
range
Example:
V
= 4.6 V
OUT
Measuring range = 10 mm
Value
= 5.4 mm
The system outputs V
object blocks any light and
max
the receiver is fully exposed.
The voltage V
can be set via
max
the gain potentiometer and
typically should read 10 V.
As the light for the receiver
decreases the signal drops
linear according to light
quantity.
If the light curtain is fully cov-
ered by a target the receiver
outputs a signal of 0 V.
i
Take care on target orien-
tation to avoid measure-
ment errors!
if no
max
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