Description :


Diffuse reflection type photoelectric switch is made up of light projector and light receptor, which is one of standard configurations. When the light beam comes from the projector, the target creates diffuse reflection and when there is enough combination light back to the light receptor, the switch state will change. Effective operating distance depends on the reflectible capacity of the target, as well as the surface property and color. The change capacity with sensitivity adjuster can assume compensation action.The equipment has lower power consumption. When the optical sensor is made up of a single element, rough location can usually be achieved. Adopts the function of background rejection to regulate the measuring distance; sensitive to the dust on the target and sensitive to the changed reflective performance of the target.

Photoelectric Proximity Sensor


Specifications :


Model number

E3F-DS30 series

External dimensions


Sensing method

Diffuse reflective

Detection distance


Sensitivity adjustment


Supply voltage


Rated output current

N.P Type: 300mA max; A Type: 400mA; J type: 2A max (contact life: 100000 times)

Sensing object

Opaque object

Response frequency


Response time

1.5ms max

Light source

Infrared LED (660 nm)

Leakage current

N.P Type: 20mA max; A Type: 1.7mA max

Protection circuit

DC: Reverse connection protection, Surge suppressor, Short-circuit protection
AC: Surge suppressor

Insulation resistance

50 MΩ min. at 500 V DC between energized parts and case

Dielectric strength

1000 VAC max., 50 / 60 Hz for 1 min between energized parts and case

Temperature influence

±10% max. of sensing distance at 23 within temperature range of -25 to 60
±15% max. of sensing distance at 23 within temperature range of -30 to 65

Voltage influence

±10% max. of sensing distance in rated voltage range ±15%

IP Rating



Case: ABS; Sensing surface (lens): PMMA

Operating temperature

-30 to 65 °C (with no icing or condensation)

Operating humidity

Storage: 35% to 95% (without condensation)