Product Description

The Keyence PZ-G51P is a high-performance photoelectric sensor designed for precise detection in industrial automation applications. Utilizing a red LED light source, it offers a detection range of up to 20 meters, making it suitable for long-distance sensing tasks. 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-G51P 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/NEMA 4A, 6, 12, and IP69K, making it suitable for applications exposed to dust, water, and high-pressure washdowns.​

Technical Specifications

• Model: PZ-G51P
• Type: Thrubeam
• Shape: Rectangular
• Output: PNP
• Cable Connection: Cable (2 m)
• Detecting Distance: 20 m
• Light Source: Red LED
• Sensitivity Adjustment: 1-turn trimmer (230°)
• Response Time: 500 µs
• Operation Mode: LIGHT-ON/DARK-ON (switch-selectable)
• Indicators (LED): Power (T): Orange LED; Output (R): Orange LED; Stable operation: Green LED; Light receiving: Red LED
• Control Output: Open collector output, 30 V max., 100 mA max., Residual voltage: 1 V max.
• Protection Circuit: Reversed polarity, overcurrent protection, surge absorber
• Interference Suppression: Up to 2 units (when polarization filters are attached)
• Tightening Torque: Rectangular models (Mounting hole part): 0.5 N·m max.
• Power Supply Voltage: 10 to 30 VDC, including Ripple (P-P) 10%
• Current Consumption: Transmitter: 20 mA or less; Receiver: 28 mA or less
• Enclosure Rating: IEC: IP67/NEMA: 4A, 6, 12/DIN: IP69K
• Ambient Light Resistance: Incandescent lamp: 5,000 lux max.; Sunlight: 20,000 lux max.
• Ambient Temperature: -20 to +55 °C (No freezing)
• Relative Humidity: 35 to 85 % RH (No condensation)
• Vibration Resistance: 10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
• Shock Resistance: 1,000 m/s², 6 times in each of the X, Y, and Z directions
• Housing Material: Glass-fiber reinforced PBT
• Lens Cover Material: Polyarylate (PAR)
• Trimmer Material: Glass-fiber reinforced polyamide (PA)
• Case Connection Material: Nickel-plated iron and zinc
• Cable Material: Polyvinyl chloride (PVC)
• Weight: Rectangular cable models: Approx. 60 g