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)
| Model | GTB | |||
| Product images |  |
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| Sense distance | 10-100MM | |||
| Diffuse type | DC10~30VDC | NPN | NO+NC | GTB6-DC10N |
| NPN | NO+NC | GTB6-DC10P | ||
| Sense distance | 30-300MM | |||
| Diffuse type | DC10~30VDC | NPN | NO+NC | GTB6-DC30N |
| NPN | NO+NC | GTB6-DC30P | ||
| Black and white deviation | Set a distance ofless than 10% | |||
| Type of output | NPN/PNP, NO, NC SET | |||
| Type of output | Set a distance of less than 10% | |||
| Light source | Red 620NM | |||
| Supply voltage | DC12-24V±10% pulsation (P-P) below 10% | |||
| Consumption current | <30mA | |||
| Consumption current | Short circuit protection, power reverse polarity protection | |||
| Standard detected object | <1ms | |||
| Distance setting | 5 cycles button | |||
| Ambient brightness | Sunlight below 10000LX, incandescent lamp below 30000LX | |||
| Ambient temperature | Duringoperation: -25℃ - +55℃ During storage:-40℃ - 70℃ | |||
| Ambient humidity | Duringoperation: 35-80% RH, during saving: 35-95% RH | |||
| Pressurization | 1000VA，50/60HZ 1min | |||
| Vibration resistance | Durability: 10-55Hz with a complex amplitude of 1.5mm X, Y, Z for 2H in each direction | |||
| Impact resistance | 500M/s 63 times in X,Y,Z directions | |||
| Protection grade | IP67 | |||
| Connection method | PVC wire lead out type 2M (standard type) | |||
| Pilot lamp | Actionindicator: yellow Powerindicator light: green | |||
| Shell material | Shell: PBT; Lens: Optical PMMA | |||
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