Omron E3T-ST22M 2M Ultracompact Photoelectric Sensor

USD 81.02

Omron E3T-ST22M 2M: through-beam sensor, 300 mm range, NPN, Dark-ON, 2 m cable.

SKU Omron-E3T-ST22M 2M Category
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Omron E3T-ST22M 2M Ultracompact Photoelectric Sensor

BrandOmron
Model IdentifierE3T-ST22M 2M
Official Part NumberE3T-ST22M 2M

Technical Overview

The Omron E3T-ST22M 2M is an ultracompact through-beam photoelectric sensor set with a 300 mm rated sensing distance and red 650 nm light. This model provides NPN open-collector output and Dark-ON operation. It uses a 2 m pre-wired cable, 12–24 V DC supply and IP67 enclosure.

Omron E3T-ST22M 2M: through-beam sensor, 300 mm range, NPN, Dark-ON, 2 m cable.

Key Features

  • Exact Omron model: E3T-ST22M 2M
  • Ultracompact through-beam photoelectric sensor, 300 mm
  • NPN open-collector output
  • Dark-ON operation
  • 650 nm red LED
  • 12–24 V DC ±10% supply
  • 50 mA max. output load
  • 1 ms max. response
  • IP67 protection
  • M3 mounting, 2 m cable

Ultracompact through-beam photoelectric sensor, 300 mm | NPN open-collector output

Technical Specification Matrix

ParameterValue
ManufacturerOmron
Product typeUltracompact through-beam photoelectric sensor
MountingM3
Sensing distance300 mm
Standard sensing objectOpaque object, 2 mm dia. min. for 1 m models; 3 mm dia. min. for 2 m models
Light source650 nm red LED
OutputNPN open collector
Maximum load current50 mA
Power supply12–24 V DC ±10%
Current consumption30 mA max. total (emitter 10 mA; receiver 20 mA)
Operation modeDark-ON
Response time1 ms max. operate or reset
ProtectionIEC IP67
ConnectionPre-wired, 2 m
HousingPBT
Operating temperature−25 to 55°C
Operating humidity35–85% RH
Physical Weight (kg)0.040 (approx. 40 g packed)
Dimensions L x W x H (cm)Overall dimensions not stated in the checked manufacturer source.

Suggested applications

Engineering suggestions require suitability checks for your installation.

1. Small part passage detection

Detect small opaque parts in a compact transfer or assembly mechanism.

Potential use

Align the emitter and receiver across the path and verify target size and response at the selected range.

300 mm NPN

2. Machine cycle sensing

Provide a beam interruption signal to confirm a moving component or fixture position.

Potential use

Choose Light-ON or Dark-ON to match the PLC input logic and validate with the installed machine sequence.

M3 IP67
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