E3T-SR22 2M

Ultracompact, Ultrathin Photoelectric Sensor with Built-in Amplifier


Retro-reflective without M.S.R. function, Sensing distance 10 to 200mm, Dark-ON, NPN output, Pre-wired models(2m)

Sensing method Retro-reflective without M.S.R. function
Sensing distance 10mm to 200mm (When using the E39-R4)
Light source Red LED
Control output (Output type) NPN open collector output
Connection method Pre-wired models (Cable length: 2 m)

Item list of E3T

  • Ratings/Performance
Sensing methodRetro-reflective without M.S.R. function
Sensing distance10mm to 200mm (When using the E39-R4)
Standard sensing objectOpaque 27 mm dia. Min.
Minimum sensing object2 mm dia. Min.
Directional angleSensor: 2 to 20 DEG
Reflector: 2 to 20 DEG Min.
Light sourceRed LED
Power supply voltage12 to 24 VDC -10% to 10% (ripple (p-p) 10% Max.)
Current consumption20 mA DC Max.
Control output (Output type)NPN open collector output
Control output (Load current)0 to 50 mA
Control output (Residual voltage)(DC) 1 V Max. (Load current: Less than 10mA)
(DC) 2 V Max. (Load current: 10 to 50mA)
Operation modeDark-ON
Load power supply voltage26.4 VDC Max.
Protective circuitSurge suppressor
Output short-cut protection
Output short-circuit protection
Power supply reverse polarity protection
Mutual interference prevention
Response time1 ms Max.
Sensitivity settingNot equipped
Ambient illuminanceIncandescent lamp: 5000 lux Max., Sunlight: 10000 lux Max.
Ambient temperatureOperating: -25 to 55℃
Storage: -40 to 70℃
(with no icing or condensation)
Ambient humidityOperating: 35 to 85%
Storage: 35 to 95%
(with no icing or condensation)
Insulation resistance20 MOhm Min. at 500 VDC between charged parts and the case
Dielectric strength1000 VAC at 50/60 Hz for 1 minute between charged parts and the case
Vibration resistance10 to 2000 Hz, 1.5-mm or 300 m/s**2 double amplitude for 0.5 hours each in X, Y, and Z directions
Shock resistance1000 m/s**2 for 3 times each in X, Y, and Z directions
Degree of protectionIEC60529: IP67
Connection methodPre-wired models (Cable length: 2 m)
IndicatorOperation indicator (orange), Stability indicator (green)
Tightening torque0.15 N・m Max. (with M2 screw via flat washers or spring washers)
Material (case)PBT
Material (lens)Methacrylate resin
AccessoriesInstruction manual, Set screws for mounting (M2*14), Nuts, Reflector (E39-R4)
  • Dimensions

  • Output circuit

  • Parallel operating range


Ultracompact, Ultrathin Photoelectric Sensor with Built-in Amplifier


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