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          5. Ultrasonic Displacement Sensor
          6. Specs

          Ultrasonic Displacement Sensor

          UD-300 series

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          Sensor head/Controller






          High-precision type sensor head

          Long-range type sensor head

          Ultra long-range type sensor head

          Amplifier unit


          Measurement range

          60 to 300 mm

          200 to 1300 mm

          800 to 6000 mm

          Display resolution



          Indication system (Display)

          ±1% of F.S.*1

          Analogue current output

          Output current

          4 to 20mA

          Applicable load

          0 to 500 Ω



          Temperature characteristics

          0.05% of F.S./°C



          Relay output: 1c × 2, 220 VAC, 3 A (resistive load)

          Alarm output

          Relay output: 1a, 220 VAC, 3 A (resistive load)

          Hysteresis (of detecting distance)

          1 to 240 mm variable

          1 to 255 mm variable

          1 to 25 mm variable

          Response time

          38 ms (at 20 Hz)

          56 ms (at 10 Hz)

          303 ms (at 3 Hz)

          Minimum detectable object

          10 x 10 mm*3

          20 x 20 mm*3

          100 x 100 mm*3


          Power voltage

          24 VDC, Ripple (P-P) 10 % or less*4

          Current consumption

          250 mA or less

          Environmental resistance

          Enclosure rating


          Ambient temperature

          -25 to +70 °C

          Relative humidity

          35 to 85 % RH (No condensation)


          Approx. 190 g (not including the cord)

          Approx. 330 g (not including the cord)

          *1 The Analogue output linearity is ±2.5% of F.S. (The F.S. is 300 mm for the UD-310, 1300 mm for the UD-320, 6000 mm for the UD-360, and 3000 mm for the UD-330.)
          *2 The display resolution cannot be 1 mm or less (1 cm with the UD-360) when converted to distance.
          *3 The minimum detectable object displays the size of the object to be detected that satisfies the specifications listed above. Depending on conditions such as presence/absence detection, it is also possible to respond to even smaller objects. Contact KEYENCE for more information.
          *4 The usable range is 20 to 30 VDC.

          • For Beginners Sensor Basics Understanding fundamental - Introduction Guide to Sensors

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