Panasonic EX-23-PN Thru-Beam Photoelectric Sensor

USD 61.68

Ultra-compact thru-beam photoelectric sensor with 2m range, 3mm min. object detection, IP67, 500µs response, and PNP output for precise industrial automation.

SKU Pananonic-EX-23-PN Category
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Panasonic EX-23-PN Thru-Beam Photoelectric Sensor

Model Identifier EX-20 series
Official Part Number EX-23-PN
GTIN Standard NA

Technical Overview

Ultra-compact thru-beam photoelectric sensor with 2m range, 3mm min. object detection, IP67, 500µs response, and PNP output for precise industrial automation.

Key Features

  • Ultra-compact photoelectric sensor emitter+receiver pair with side sensing.
  • Through-beam (Thru-beam) sensing principle.
  • Max. sensing range of 2 meters (6.562 ft).
  • Operates on 12VDC to 24VDC supply voltage.
  • Features 1 x digital PNP open-collector output (24Vdc / 50mA).
  • Fast response time of 500µs (0.0005 s).
  • IP67 degree of protection for demanding environments.
  • Wide operating ambient air temperature range of -25°C to +55°C.
  • Housing constructed from Polyethylene terephthalate / PBT and a Polyarylate lens.
  • Red LED light source with a wavelength of 650 nm.
  • Capable of detecting opaque objects with a minimum diameter of 3mm.
  • Pre-wired with a 2-meter long, 3-core (emitter: 2-core) 0.1mm² flexible cabtyre cable.
  • Selectable Light-ON or Dark-ON operating modes.
  • Equipped with Orange LED (operation) and Green LED (stability) visual indicators.

High-power, narrow red LED beam (650 nm wavelength) allows for a small 1mm diameter spot and easy alignment for detecting minute objects.

Technical Specification Matrix

ParameterValue
Sensing PrincipleThrough-beam (Emitter + Receiver)
Sensing Range2 meters
Supply Voltage12 to 24 VDC
Output TypePNP Open-Collector
Output Current50 mA
Response Time500 µs
Degree of ProtectionIP67
Operating Temperature-25 to +55 °C
Housing MaterialPolyethylene terephthalate / PBT
Lens MaterialPolyarylate
Light SourceRed LED
Wavelength650 nm
Minimum Detectable ObjectØ3 mm opaque object
Cable Length2 meters
Operation ModeLight-ON / Dark-ON selectable
Sensor Body FeatureSide sensing
Physical Weight (kg)0.04
Dimensions L x W x H (cm)0.82 x 1.23 x 1.05

Industrial Applications

1. High-Speed Small Component Verification on Assembly Lines

Precisely detects the presence or absence of small electronic components or miniature mechanical parts moving at high speeds on automated assembly lines, ensuring proper component placement and preventing production errors.

Problem Solved

Traditional sensors may lack the necessary speed or minimum object detection capability for verifying rapidly moving, tiny components. The EX-23-PN's 3mm minimum detectable object size and 500µs response time enable reliable and accurate detection in high-throughput, precision manufacturing environments.

Small object detectionHigh-speed automationAssembly lineComponent verificationPNP outputFast response

2. Industrial Gate/Door Position Monitoring in Washdown Areas

Monitors the open or closed status of industrial access gates, safety doors, or machinery covers in manufacturing plants, including areas exposed to water spray or dust accumulation, ensuring operational safety and process control.

Problem Solved

Environments with moisture, dust, or potential washdowns require robust sensing solutions. The EX-23-PN's IP67 rating provides excellent protection against water and dust ingress, while its 2-meter sensing range is suitable for most industrial gate dimensions, offering reliable position feedback.

Safety interlockIP67Environmental resistanceDoor position sensingThru-beamIndustrial safety

3. Material Level Detection in Small Opaque Hoppers or Tanks

Accurately detects predefined material levels (e.g., granular solids, powders, or non-transparent liquids) within compact, opaque hoppers, bins, or tanks, preventing overfilling or underfilling in automated dispensing or feeding systems.

Problem Solved

For non-transparent containers where visual inspection is impossible, thru-beam sensors provide reliable point-level detection. The EX-23-PN's ultra-compact design and 2-meter sensing range allow for easy integration into space-constrained process equipment, while its PNP output seamlessly integrates with control systems for automated material handling.

Level sensingMaterial handlingOpaque containersPoint detectionCompact sensorProcess control
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