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How does a photoelectric detector operate in "thru-beam" mode?

A thru beam sensor uses an external beam transmitter to a receiver that detects when the beam is broken.

Note the following operating precautions:

This mode offers the longest possible sensing distance.

  • Precise alignment is required between the cell and the thru-beam transmitter.
  • Good resistance to clogging and dust.
  • Tends to work most reliably with opaque objects

More information can be found in the online catalogues

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