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Opto Theory
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 (LED) should always be approximately 1.4 volts.
Note:
The transmitter (LED) is
larger than the receiver (Photo Transistor): it protrudes further from its case.
TCIOJ!11ltl.r
1.0· 1,4VollS
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0.1·0.7 VoilaUobIocksd
11 • 13 Volts Blocked
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