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Cylindrical photoelectric sensor

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Product Feature

Cylindrical photoelectric sensor

Durable Power Cable The power cable has passed multiple tests for tensile strength, bending resistance, and swing resistance, ensuring reliable long-term use.
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High-Quality Sensing Surface & Robust Housing
The proximity switch’s sensing surface is made of high-quality materials, while the housing is made of plastic—providing firmness, reliability, and an extended service life. Some variants feature a stainless steel housing with laser welding sealing for enhanced durability.
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Excellent Anti-Interference Performance
When a metal detection object enters the sensor's sensing area, the switch sends electrical commands quickly without contact, pressure, or sparks, accurately reflecting the position and stroke of the moving mechanism.

Technical Specifications

Parameter

Diffuse Reflection Type

Through-Beam Type

Model (NPN Output, Lead Wire Type)

KN-DM12, KN-DM18

KN-TM12, KN-TM18, KN-LTM12, KN-LTM18

Detection Distance

KN-DM12: 100mm; KN-DM18: 400mm

KN-TM12: 5mm; KN-TM18: 10mm; KN-LTM12: 20mm; KN-LTM18: 40mm

Detection Object

100×100mm white drawing paper

Opaque objects with diameter ≥12mm

Contrast Requirement

≤20% of the detection distance

-

Light Source (Wavelength)

GaAs infrared light-emitting diode (850nm)

660nm red laser

Power Supply Voltage

DC12-24V (ripple (p-p) ≤10%); DC10-30V (wide voltage range) (for all types)


Current Consumption

≤25mA

≤45mA

Control Output

Load current ≤100mA (residual voltage ≤1V) (for all types)


Response Time

On/Off response: ≤1.0ms each (for all types)


Circuit Protection

Surge protection, short-circuit protection, reverse polarity protection (for all types)


Indicator Light

Operation indicator (red) (for all types)


Ambient Temperature

Operating: -25°C~+55°C; Storage: -30°C~+70°C (no freezing) (for all types)


Ambient Light Influence

Sunlight: ≤10,000lx; Incandescent light: ≤3,000lx (for all types)


Ambient Humidity

Operating: 45%-85%RH (no freezing); Storage: 35%-95%RH (no freezing) (for all types)


Voltage Influence

When the power supply fluctuates within ±15% of the rated voltage, the detection distance changes within ±1% (for all types)


Insulation Resistance

≥50MΩ (between live parts and housing, measured with DC500V megohmmeter) (for all types)


Dielectric Strength

≥AC1000V, 50/60Hz for 1 minute (between live parts and housing) (for all types)


Vibration Resistance (Durability)

10~55Hz, 1.5mm double amplitude, 1 hour each in X, Y, Z directions (for all types)


Shock Resistance (Durability)

500m/s², 3 times each in X, Y, Z directions (for all types)


Protection Class

IP67 (for all types)


Connection Method

Lead wire type (standard length: 2m) (for all types)


Material

Housing: Metal; Light Emitting/Receiving Parts: PC (for all types)



Wiring Diagram

Application

  • sensor sensor
  • sensor sensor
  • sensor sensor
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