EX-21A

Type	Thru-beam	Shape	Rectangular	Sensing Range	1 m
Repeatability	0.05 mm	Output	NPN	Output Operation	L-ON (NC)
Input supply	12 to 24 VDC	Emitting Element	Red LED	Connection Type	Fixed Cable, 2m
Sensing Object Size	ø2.6 mm	Timer Function	–	Response Time	< 0.5 ms
Enclosure	Polyethylene terephthalate	Protection	IP67 (IEC)	Sensitivity adjuster	No
Particular Characteristics	Front Sensing

Miniature-sized and still mountable with M3 screws. Moreover, metal inserts have been provided in the mounting holes so that the product is not damaged even in case of excess tightening. The beam-receiving photodiode and the A/D conversion circuit have been fabricated on a single chip optical IC (full custom). Hence, in spite of its miniature size, it has performance and reliability which is equal to or better than the conventional product. The sensor incorporates a sensitivity adjuster in spite of its miniature size. It is convenient when you need fine adjustment. Further, the receiver of the thru-beam, side sensing type sensor incorporates an operation mode switch which can change the output operation. The sensors feature an IP67 rating to allow their use in process lines where water is used or splashed. Rust-resistant stainless steel sensor mounting brackets are available. The EX-20 series become significantly stronger against inverter light and other extraneous light.

Water and Waste water

Ceramic

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