E3T-SR4

Reliable Detection in Narrow Lanes Enables Equipment Downsizing and Easy Design

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Ratings and Specifications

Output Model	NPN	PNP
	E3T-SR41/E3T-SR42	E3T-SR43/E3T-SR44
Sensing distance	200 mm (30 mm) (with the E39-R4), 100 mm (10 mm) (with the E39-R37-CA) *
Light source (wavelength)	Red LED (650 nm)
Power supply voltage	12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption	20 mA max.
Control output	Load power supply voltage: 26.4 VDC max., Load current: 50 mA max. (Residual voltage: 2 V max. for load current of 10 to 50 mA, 1 V max. for load current of less than 10 mA.), Open collector output Operation mode: Light-ON: E3T-SR41 or E3T-SR43, Dark-ON: E3T-SR42 or E3T-SR44
Response time	Operate or reset: 1 ms max.
Degree of protection	IEC IP67
Material	Case: Polybutylene terephthalate (PBT), display: Modified polyarylate resin, Lens: Methacrylic resin

*Values in parentheses indicate the minimum required distance between the Sensor and Reflector.

*The E39-RS1/2/3 Tape Reflectors (i.e., model numbers without a CA suffix) cannot be used with the E3T-SR4[].

Caution: In the interenst of product improvement, specifications are subject to change without notice.

Sensors