E3T-ST12 Omron Automation, E3T-ST12 Datasheet - Page 2

• Manufacturer Part Number: E3T-ST12
• Description: Sensor; NPN; Through-Beam Sensing Mode; Photoelectric; 1 m; Red LED; Dark-On
• Manufacturer: Omron Automation
• Type: Thru Beamr

Specifications of E3T-ST12

• Current, Switching: 50 mA
• Dimensions: 0.73 in. L x 0.37 in. W x 0.28 in. H
• Function: Proximity
• Indicator: LED
• Ip Rating: IP67
• Light Source: Red LED
• Material, Casing: PBT (Polybutylene Terephthalate)
• Material, Lens: Polycarbonate
• Mounting Type: Bracket
• Output: NPN
• Primary Type: Photoelectric
• Range, Measurement: 1 mm
• Sensing Mode: Through-Beam
• Standards: CE Approved
• Technology: Photoelectric
• Temperature, Operating: -25 to +55 °C
• Termination: Pig-Tail Connector
• Voltage, Supply: 24 VDC
• Voltage, Switching: 26.4 VDC
• Weight: 40 g (Approx.)
• Voltage Range: 10.8-26.4 VDC
• Load Rating: NPN or PNP Open Collector, 50 mA Max.
• Operating Ambient: –25° to +55°C, 35% to 85% RH
• Lead Free Status / Rohs Status: RoHS Compliant part

Upgraded Products
E3T-ST Through-beam (Side View) Models/
E3T-FT Through-beam (Flat) Models
Long-distance detection Side-view Models: 1 m, Flat Models: 500mm
300-mm Models are also available to prevent mutual interference.
Minimum detection object: 0.5 mm dia. (with slit attached)
Optical axis accuracy of ±2° for installation reliability.
Easily distinguish between color-coded Emitter and Receiver lenses.
E3T-SL Convergent-reflective Models (Side-view)
Minimum detection object: 0.15 mm dia.
Resistant to background and surrounding metal
Reliability to the Performance Improved by Product Upgrades
Complete Compliance with RoHS
Lead, mercury, cadmium hexachrome,
polybrominated biphenyl (PBB), and polybrominated
diphenyl ether (PBDE) have all been removed. And
burnable polyethylene packaging has been used.
Uses the well-praised disturbance light bypass
algorithm from the E3Z Series.
Environmental resistance to inverter fluorescent
lights and other light interference
has been greatly improved.
Even at this size the Emitter axis accuracy is ±2˚.
High-precision alignment technology has enabled
maximum reduction of light axis fluctuations of
the Emitter beam. The margin for the received
light is doubled if the Emitter and Receiver
mechanical axes are aligned (at the rated sensing
distance).
Improved Detection Stability for
Reflective Sensors
Great Reductions in Time Required
for Adjusting Through-beam
Sensor Optical Axes
E3T-SR Retro-reflective Models (Side-view)
System
Two models for different reflector characteristics.
E3T-SR2@: With E39-R4, Sensing distance: 200 mm
E3T-SR3@: With E39-R37, Sensing distance: 100 mm
E3T-FD Diffuse-reflective Models (Flat)
Minimum detection object: 0.15 mm dia.
Only 3.5 mm wide for installation in small gaps.
Models with NPN Output
(Through-beam Receivers) (Retro-reflective Models) (Reflective Models)
(Through-beam Receivers) (Retro-reflective Models) (Reflective Models)
Models with PNP Output
Operation
indicator
(orange)
Operation
indicator
(orange)
Sensor Protection Against Wiring
Mistakes
New output reverse polarity protection function
added. (A reverse polarity protection diode has
been added to the output line.)
Stability
indicator
(green)
Stability
indicator
(green)
Photo-
electric
Sensor
main
circuit
Photo-
electric
Sensor
main
circuit
ZD
ZD
1
4
3
1
4
3
Black
50 mA
max.
Brown
50 mA
max.
Blue
Brown
Black
Blue
12 to 24 V DC
(relay)
(relay)
Load
Load
*
0 V
Twin-lens Optical
12 to 24 V DC
E3T
2