Product Feature
Small photoelectric sensor
Small size Boasts an ultra-compact size (as small as a fingertip) and comes with a variety of gap accessories, making it adaptable to various narrow and confined spaces.
Technical Specifications
Parameter | Specification |
Model (NPN Output, Lead Wire Type) | Through-Beam Type: KN-T21; Diffuse Reflection Type: KN-D21 |
Detection Distance | Through-Beam Type: 1.5m; Diffuse Reflection Type: 150mm |
Detection Object | Opaque objects with diameter ≥4mm |
Contrast Requirement | ≥20% of the detection distance |
Control Output | Dual independent outputs supported; NPN/PNP transistor open collector output |
Response Frequency | ≤1ms |
Power Supply Voltage | DC12-24V (ripple (p-p) ≤10%); DC10-30V (wide voltage range) |
Current Consumption | ≤25mA |
Switch Capacity | ≤3W |
Residual Voltage | ≤1V (at 100mA load current) |
Circuit Protection | Surge protection, short-circuit protection, reverse polarity protection |
Light Source | Modulated infrared light |
Indicator Light | Operation indicator (red) |
Ambient Temperature | Operating: -25°C~+70°C (no freezing or frosting); Storage: -40°C~+85°C (no freezing or frosting) |
Ambient Light Influence | Sunlight: ≤10,000lx; Incandescent light: ≤3,000lx |
Ambient Humidity | Operating: 45%-85%RH (no freezing); Storage: 35%-85%RH (no freezing) |
Voltage Influence | When the power supply fluctuates within ±15% of the rated voltage, the detection distance changes within ±1% |
Insulation Resistance | ≥50MΩ (between live parts and housing) |
Dielectric Strength | ≥AC1000V, 50/60Hz for 1 minute (between live parts and housing) |
Vibration Resistance (Durability) | 10-55Hz, 1.5mm double amplitude, 2 hours each in X, Y, Z directions |
Shock Resistance (Durability) | 500m/s², 10 times each in X, Y, Z directions |
Protection Class | IP65 |
Connection Method | Lead wire type (standard length: 2m) |
Housing Material | PC (Polycarbonate) |
Wiring Diagram
Application
