Product Description

The Keyence PZ-61L is a compact, high-performance photoelectric sensor designed for precise short-range detection in industrial automation applications. Utilizing an infrared LED light source, it offers a detection range of up to 2.5 meters when used with the R-1 reflector, making it suitable for applications requiring close-range sensing. The sensor features a built-in amplifier, simplifying installation and reducing wiring complexity. With a rectangular shape and a 2-meter cable connection, it provides flexibility in various setups. The PZ-61L supports both LIGHT-ON and DARK-ON operation modes, selectable via a switch, and includes a 1-turn sensitivity adjustment trimmer for fine-tuning. Its robust design ensures reliable performance in harsh environments, with an enclosure rating of IP67, making it suitable for applications exposed to dust and water.​

Technical Specifications

• Feature Specification
• Model PZ-61L
• Type Retro-reflective model, L model
• Detecting Distance 0.1 to 2.5 m (when reflector R-1 is used)
• Light Source Infrared LED
• Detectable Object Opaque material with an area of 30 mm² or more
• Sensitivity Adjustment 1-turn trimmer (240°)
• Response Time 1 ms max. (2 ms in alternate frequency mode)
• Operation Mode LIGHT-ON/DARK-ON (switch-selectable)
• Indicator Lamp Output: Red LED, Stable operation: Green LED
• Control Output Maximum NPN open-collector output: 100 mA or less (40 V or less)
• Stability Output Maximum NPN open-collector output: 50 mA or less (40 V or less)
• Protection Circuit Reversed polarity, overcurrent protection, surge absorber
• Power Supply Voltage 12 to 24 VDC ±10 %, Ripple (P-P) 10 % or less
• Current Consumption 30 mA or less
• Enclosure Rating IP67
• Ambient Light Resistance Incandescent lamp: 5,000 lux or less, Sunlight: 20,000 lux or less
• Ambient Temperature -20 to +55 °C (No freezing)
• Relative Humidity 35 to 85 % RH
• Vibration Resistance 10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
• Housing Material Fiberglass reinforced plastic
• Weight Approx. 75 g (including 2-m cable)