Pepperl & Fuchs
Part number: 32-623
Pack size: EA
Type: Ultrasonic 
Distance: 30 - 500mm 
Output: PNP (+ Switching) 
Operation: N/O-N/C 
Thread: M18 
Mount: Flush 
Feature: 5 pin M12, IP65 

Part # 32-623
Part # 32-623

Non Stocked Product - Lead time is 2 weeks

Ultrasonic sensors work on a principle similar to radar or sonar, which evaluate attributes of a
target by interpreting the echoes from radio or sound waves respectively. Active ultrasonic
sensors generate high frequency sound waves and evaluate the echo which is received back
by the sensor, measuring the time interval between sending the signal and receiving the echo
to determine the distance to an object.

No other measuring method can be successfully put to use on such a wide scale and in so
many different applications. This device is extremely robust, making it suitable for even the
toughest conditions. The sensor surface cleans itself through vibration, and that is not the only
reason why the sensor is insensitive to dirt. The physical principlethe propagation of sound
works, with a few exceptions, in practically any environment and is suitable for both liquid and
solid applications (e.g. plastics, metals, powders and granular materials).

In automotive and industrial applications, ultrasonic sensors are characterized by their
reliability and outstanding versatility. Ultrasonic sensors can be used to solve even the most
complex tasks involving object detection or level measurement with millimetre precision,
because their measuring method works reliably under almost all conditions.

Typical applications

  • Crop sprayers: Automatically adjusts sprayer to proper height over crops
  • Agricultral harvesters: Detects fill level, automatically adjusts harvester unit to
    proper height
  • Waste / Rubbish trucks: Monitors emptying process for efficiency, contactless
    monitoring of waste container content, rubbish bin recognition, control and speed of
    one or double grabbing / gripper / lifter arm position and operation, control of free
    space during operation
  • Fire Engine / Cherry pickers: Prevents collision of ladder by monitoring the working

Product Description

  • Single head system

General specifications

  • Sensing range: 30 ... 500 mm
  • Adjustment range: 50 ... 500 mm
  • Unusable area: 0 ... 30 mm
  • Standard target plate: 100 mm x 100 mm
  • Transducer frequency: approx. 380 kHz
  • Response delay: appox. 50 ms

Indicators/operating means

  • LED yellow: indication of the switching state flashing: program function object detected
  • LED red: "Error", object uncertain in program function: No object detected

Electrical specifications

  • Operating voltage: 10 ... 30 V DC , ripple 10 %SS
  • No-load supply current: 50 mA


  • 1 program input, operating range 1: -UB ... +1 V, operating range 2: +4 V ... +UB
    input impedance: > 4.7 k; program pulse: 1 s


  • Output type: 2 switch outputs PNP, NO/NC, programmable
  • Rated operating current: 2 x 100 mA , short-circuit/overload protected
  • Voltage drop: 3 V
  • Repeat accuracy: 1 % of full-scale value
  • Switching frequency: max. 8 Hz
  • Range hysteresis: 1 % of the set operating distance
  • Temperature influence: 1.5 % of full-scale value

Approvals and certificates

  • UL approval: cULus Listed, General Purpose
  • CSA approval: cCSAus Listed, General Purpose
  • CCC approval: CCC approval / marking not required for products rated 36 V

Ambient conditions

  • Ambient temperature: -25 ... 70 C (-13 ... 158 F)
  • Storage temperature: -40 ... 85 C (-40 ... 185 F)

Mechanical specifications

  • Connection type: Connector M12 x 1 , 5-pin
  • Degree of protection: IP65
  • Material: Housing: brass, nickel-plated
    Transducer: epoxy resin/hollow glass sphere mixture; foam polyurethane, cover PBT
  • Mass: 60 g


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