G78 photoelectric switch

G78 photoelectric switch
Principle of photoelectric switch
The working principle of the photoelectric switch is that when the beam emitted by the emitter is blocked or partly reflected by the object,the beam receiver where by makes a judgment and reacts.

 Model explanation of Photoelectric Sensor

 

 1. G: Photoelectric sensor
 2. Sub code No.(18, 50, 76.....)
 3. Operating voltage(2: 90-250VAC ;3: 10-30VDC; 4: 12-240VDC/24-240VAC; 5: Special voltage)
 4. Detection method( A: Diffuse type; B: Mirror reflex type; C: Through beam type)
 5. Detection distance (05: 5cm ; 10: 10cm; 30: 30cm; 101: 10m)
 6. Output method(N: NPN transistor output; P: PNP transistor output; J: Relay output; L: AC two-line output; S: NPN+PNP)
 7. Output status(A: NO; B: NC; C: NO+NC)
 8. Auxi function code(T1: Front delay; T2: Rear delay; Y: Oil proof; T: With connector; I: Special requirement)

 Technical Parameters:

 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

OVERALL DIMENSIONS
Diffuse type	Detection distance			40cm
	10-30VDC	NPN	NO	G78-3A40NA
			NC	G78-3A40NB
			NO+NC	G78-3A40NC
		PNP	NO	G78-3A40PA
	90-250VAC		NC	G78-3A40PB
			NO+NC	G78-3A40PC
		SCR Contro Hable silicon	NO	G78-2A40LA
			NC	G78-2A40LB
		Relay output
Retroreflective type	Detection distance			2m
	10-30VDC	NPN	NO	G78-3B2NA
			NC	G78-3B2NB
			NO+NC	G78-3B2NC
		PNP	NO	G78-3B2PA
	90-250VAC		NC	G78-3B2PB
			NO+NC	G78-3B2PC
		SCR Contro Hable silicon	NO	G78-2B2LA
			NC	G78-2B2LB
		Relay output
Through beam	Detection distance			5m
	10-30VDC	NPN	NO	G78-3C5NA
			NC	G78-3C5NB
			NO+NC	G78-3C5NC
		PNP	NO	G78-3C5PA
	90-250VAC		NC	G78-3C5PB
			NO+NC	G78-3C5PC
		SCR Contro Hable silicon	NO	G78-2C5LA
			NC	G78-2C5LB
		Relay output
DC/SCR Control output				DC:200mA
DC/AC Consumption current				DC<15mA,AC<10mA
DC/AC Response time				AC/Dc<2ms
Directional angle				3。-10。
Detected object				transparent or opaque body
Working environment temperature				25℃～+55℃
Intensity of illumination of working environment				Sunlight under 1000LX incandescent lamp under 3000LX
Shell material				Plastic
Protection grade				IP54