The UB400-F77-E3-V31 is an ultrasonic direct detection sensor by Pepperl+Fuchs. It has a sensing range of 25–400 mm, an adjustment range of 40–400 mm, and a dead band of 0–25 mm. It also has a transducer frequency of about 300 kHz and a time delay before availability of 150 ms or less.
Here are some more specifications for the UB400-F77-E3-V31:
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Range: 400 mm
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PNP / NO
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Usup: 20–30 VDC, 200 mA
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Standard target plate: 20 mm x 20 mm
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Permissible cable length: 300 m maximum

PEPPERL+FUCHS PHOTOELECTRIC SENSOR UB400-F77-E3-V81
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