Basic HTML Version
OPTOTHEORY
The opto receiver (Photo Transistor) should be approximately
0.1-0.7
volts when the opto beam
is unblocked and approximately 11-13 volts when the opto beam is blocked. The opto transmitter
(L.E.D.) should always be approximately 1.4 volts. Note, the transmitter (L.E.D.) is larger than
the receiver (Photo Transistor); it protrudes further from its case.
LED Board
Transmitter
1.0-1.4
Volts
Photo Transistor Board
Receiver
0.l-O.7V
Unblocked
11-13V
Blocked
WHT
BlK
Infrared Ray
Gray
Black
White
Green
1-43