ELF-4, Photoelectric proximity sensor, energetic Sick ET4-E2238 (1045323)

Photoelectric sensors
ELF-4, Photoelectric proximity sensor, energetic   Model Name ET4-E2238 Part No. 1045323   Самое главное Background suppression or energetic variants Infrared light or visible red light Clear back cover provides highly visible indicator 24 mm spherical front mount and 18 mm base mount Status and output indicator Flush red lens IP 67-rated housing Преимущества 24 mm spherical front mount and 18 mm base mount provides increased mounting flexibility A wide range of customizable options reduces material and labor costs Flush red lens provides an increased sensing range for a broader range of application possibilities IP 67-rated housing offers a long service life that stands up to harsh environments, reducing maintenance time and costs Highly visible status/power indicator provides quick and easy troubleshooting from a distance Small sensor footprint easily fits into applications with limited space

Features
	Dimensions (W x H x D):	23.8 mm x 46.7 mm x 33.6 mm
	Sensing range max.:	5 mm ... 60 mm 1)
	Sensing range:	5 mm ... 60 mm 2)
	Housing design (light emission):	Hybrid
	Light source:	LED 3)
	Type of light:	Visible red light
	Wave length:	660 nm
	Thread diameter (housing):	M18
	Sensor/detection principle:	Photoelectric proximity sensor, energetic
	Light spot (distance):	60 mm

1) 2) Object with 90 % reflectance (referred to standard white DIN 5033)  3) Average service life 100,000 h at Ta = +25 °C

Mechanics/electronics
	Enclosure rating:	IP 67
	Supply voltage:	10 V DC ... 30 V DC 1)
	Residual ripple:	< 5 Vpp 2)
	Power consumption:	< 20 mA 3)
	Switching output:	NPN, Dark-switching
	Output current Imax.:	50 mA
	Switching frequency:	200 Hz 4)
	Connection type:	Connector M8, 4-pin
	Protection class:	III 5)
	Circuit protection:	A D 6) 7)
	Weight:	0.014 kg, 0.03 lbs
	Housing material:	Glass fiber reinforced ABS plastic
	Ambient operating temperature:	-25 °C ... 50 °C
	Ambient storage temperature:	-40 °C ... 70 °C
	Items supplied:	Mounting nut M18
	Special design:	Focused optics
	Front screen heating:	-

1) Limit values  2) May not exceed or fall short of VS  3) Without load  4) With light/dark ratio 1:1  5) Reference voltage 50 V DC  6) A = VS connections reverse-polarity protected  7) D = outputs overcurrent and short-circuit protected

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