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Panasonic CX-400 Series User Manual page 20

Amplifier built-in small photoelectric sensor
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,Q FDVH )*6 IXQFWLRQ LV XVHG
Step
1. 7XUQ WKH GLVWDQFH DGMXVWHU IXOO\ FORFNZLVH WR WKH PD[L-
mum sensing range position. (approx. 50mm for CX-441
and CX-443  DSSUR[ PP IRU CX-444  DQG DSSUR[
300mm for CX-442 
2. 3ODFH DQ REMHFW DW WKH UHTXLUHG GLVWDQFH IURP WKH VHQVRU
WXUQ WKH GLVWDQFH DGMXVWHU JUDGXDOO\ FRXQWHUFORFNZLVH
and find out point A where the sensor changes to the
stable dark condition.
3. 5HPRYH WKH REMHFW WXUQ WKH GLVWDQFH DGMXVWHU IXUWKHU
FRXQWHUFORFNZLVH DQG ¿QG RXW SRLQW B where the sensor
changes to the stable dark condition again with only the
background. When the sensor does not go to the stable
GDUN FRQGLWLRQ HYHQ LI WKH DGMXVWHU LV IXOO\ WXUQHG FRXQWHU-
FORFNZLVH SRLQW B is this extreme point.
There may be more than 1 turn between the point A
and B VLQFH WKLV VHQVRU LQFRUSRUDWHV WXUQ DGMXVWHU
4. 7KH RSWLPXP SRVLWLRQ WR VWDEO\ GHWHFW REMHFWV LV WKH FHQ-
ter point between A and B.
20
Distance
DGMXVWHU
A
A
B
Optimum
A
position
B

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