Name: Background Suppression Photoelectric Sensor (30~120mm)
Brand: DFRobot
SKU: FIT0770
Price: 29.9 USD
Availability: LimitedAvailability

Introduction

This industrial-grade background suppression photoelectric sensor offers an adjustable detection range of 30–120mm (varies under operational conditions). Detection distance can be calibrated via a rotary knob, with a rapid response time of 1ms for stable performance. Constructed from ABS material, the sensor is environmentally friendly, durable, and immune to color and background interference. Minimal sensitivity to surface roughness ensures reliable detection. Integrated reverse polarity protection, over current protection, and over voltage protection enhance operational safety.

The module operates within a temperature range of -20°C to 55°C (non-freezing) and humidity levels of 35%–85% RH (non-condensing). Typical applications include SMT pick-and-place machines, packaging material inspection, security systems, and industrial automation control.

Dimension Diagram of Industrial-grade Background Suppression Photoelectric Sensor

User Manual

Operation (Detection Range Adjustment)

Factory Default: Pre-set to 30mm detection range. Green LED remains steady; Red LED activates upon detection.

Adjustment: After securing the sensor, align it with the target object. Turn the knob clockwise until the indicator switches from green to red to set the optimal detection range.

Light-On/Dark-On Mode Switch: Press and hold the button for 10 seconds. Release when the LED color changes to confirm mode switching.

Wiring Instructions of Industrial-grade Background Suppression Photoelectric Sensor

Note: For voltage measurement during installation or maintenance, connect a 1kΩ resistor between the brown (BROWN) and black (BLACK) wires. The output signal can then be measured between the blue (BLUE) and black (BLACK) wires.

Precautions

Avoid direct exposure to the sensor’s light beam

Do not expose the sensor’s lens to intense light sources

Not suitable for detecting mirrored surfaces or specific colors

If condensation, oil, or dust accumulates on the lens, gently clean it with a dry, lint-free cloth

Maintain lens cleanliness in dusty or oily environments

The plastic housing is not impact-resistant; avoid mechanical stress

Specification

Model: PB-2S150N

Power Supply: 12–24V DC ±10%

Current Consumption: Max. 30mA

Output Type: NPN, 100mA max., residual voltage ≤1V

Detection Range: 30–120mm (varies by conditions)

Light Source: Red spot

Spot Size: Ø10mm (at 100mm distance)

Response Time: 1ms

Step Detection: Minimum 3mm, ≤10% of set distance (slight variations possible)

Contrast Ratio (Black/White): ≤5% (White: 95% reflectivity; Black: 5% reflectivity)

Detectable Objects: Opaque and semi-transparent materials

Adjustment: Rotary knob for distance sensitivity

Operating Mode: Light-On/Dark-On (toggle via 10-second button press)

Indicators:
Red LED: Power/Output status
Green LED: Operational stability

Protection: Reverse polarity, over current, over voltage

Ingress Protection: IP64

Ambient Light Tolerance:
Indoor: ≤20,000 Lux
Sunlight: ≤5,000 Lux

Operating Temperature: -20°C to 55°C (non-freezing)

Humidity: 35%–85% RH (non-condensing)

Housing Material: Plastic

Weight: Approx 30g

Background Suppression Photoelectric Sensor (30~120mm)

Introduction

Specification

Shipping List