G57 Photoelectric Switch

The G57 High Accuracy Photoelectric Switch Sensor is easy to install and this type of sensor is widely used in automation systems, for example in production lines to detect the arrival or departure of objects, or in automatic door control to detect the passage of objects at the doorway.

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Description

Throuht-beam type

Through-beam bype photoelectric switch is designed that via the light beam between opposite-mounted transmitter and receiver, the object passing through these two devices will interrupt the light beam and start the receiver. (Fig.R1)

 

Diffuse type

Diffuse reflection type photoelectric switch integrates the transmitter and the reciver. Light reflected by the photoelectric switch is reflected back to the receiver by the detected object. (Fig.R2)

 

Retroreflective type

Retroreflective type photoelectric switch also integrates the transmitter and the receiver, Its difference from other models is that reflecotr is used to relfect light to the photoelectric switch. Though the object between the photoelectric switch and reflector can reflect the light, it is much less efficient than the reflector so as to cut down reflected light. (Fig.R3)

 

Convergence reflection type (condensation type)

The working principle of convergence reflection type photoswitch is similar to that of direct reflection type one, while its projector and light receiver focus on boject distance, only when the object presents to the focus can the photoswitch actuate.(Fig.R4)

 

 

Outward appearance code

 

Model G57
Dimension
Sense distance 1.5cm
Through-beam type DC10~30VDC NPN NO G57-3E1.5NA
NC G57-3E1.5NB
NO+NC G57-3E1.5BC
NPN NO G57-3E1.5PA
NC G57-3E1.5PB
NO+NC G57-3E1.5PC
Output voltage peak DC:200mA、AC:300mA
Consumption current DC<15mA、AC<10mA
Standard detected object DC<2ms、AC<20ms
Repeatability 2°~10°
Response frequency Transparent oropaque body
Ambient temperature -25℃ - +55℃
Ambient brightness Sunlight below 10000LX, incandescent lamp below 30000LX
Shell material ABS plastic
Protection grade IP54

 

 

Application illustration or photoelectric switch

 

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