Product Description

The Keyence PZ-G61N is a compact, high-performance retro-reflective photoelectric sensor designed for precise detection in industrial automation applications. Utilizing a red LED light source and featuring a built-in amplifier, it offers a detection range of 0.1 to 4.2 meters when used with the R-2L reflector. The sensor 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-G61N
• Type: Retro-reflective (Long-range with P.R.O. function)
• Shape: Rectangular
• Output: NPN
• Connection: Cable (2 m)
• Detecting Distance: 0.1 to 4.2 m (with R-2L reflector)
• Light Source: Red LED
• Sensitivity Adjustment: 1-turn trimmer (230°)
• Response Time: 500 µs
• Operation Mode: LIGHT-ON/DARK-ON (switch-selectable)
• Indicators (LED): Output: Orange LED; Stable operation: Green 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 (with the automatic different frequency function)
• Power Supply Voltage: 10 to 30 VDC, including Ripple (P-P) 10%
• Current Consumption: 34 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-fibre reinforced PBT
• Lens Cover Material: Acrylic (PMMA)
• Trimmer Material: Glass-fibre reinforced polyamide (PA)
• Case Connection Material: Nickel-plated iron and zinc
• Cable Material: Polyvinyl chloride (PVC)
• Weight: Approx. 60 g