PZ-G62CN Retro-Reflective Sensor Technical Guide
Product Introduction
The Keyence PZ-G62CN belongs to the PZ-G series of built-in amplifier photoelectric sensors. Specifically, it features a rectangular housing and a retro-reflective detection method optimized for transparent objects. In addition, the sensor uses a single-turn trimmer for sensitivity adjustment across a 230-degree range. Furthermore, the M8 connector design enables quick replacement without rewiring. Meanwhile, the NPN open collector output supports up to 30 VDC and 100 mA loads. Consequently, integrators frequently specify the PZ-G62CN for clear bottle detection, film presence verification, and glass substrate positioning.
Core Value
Firstly, the PZ-G62CN delivers stable detection of transparent targets through its dedicated optical design. Unlike standard diffuse sensors, this retro-reflective model compares light return from a reflector to detect beam interruption by clear materials. Moreover, the infrared LED source resists ambient light interference up to 5,000 lux from incandescent sources and 20,000 lux from sunlight. In addition, the IP67 and IP69K enclosure ratings withstand washdown and dust exposure. Therefore, maintenance engineers value the PZ-G62CN for reducing false triggers in bottling and packaging lines. Besides, the automatic different frequency function prevents cross-talk when two units operate in close proximity.
Technical Insights
The PZ-G62CN operates on 10 to 30 VDC with a current consumption of 34 mA or less. Meanwhile, the response time of 500 µs supports high-speed conveyor applications. Furthermore, the LIGHT-ON and DARK-ON modes are switch-selectable, giving technicians flexibility during commissioning. The open collector output provides reversed polarity, overcurrent, and surge protection. In addition, the glass-fiber reinforced PBT housing resists mechanical stress and chemical exposure. Specifically, the rectangular mounting hole accepts M3 screws with a maximum tightening torque of 0.5 N·m. Consequently, the compact 10-gram body fits tight machine spaces where larger sensors fail.
Installation & Maintenance
Firstly, mount the PZ-G62CN opposite the R-2L reflector and align the optical axis carefully. In addition, maintain a clean line of sight because dust accumulation on the lens cover degrades detection stability. Moreover, route the M8 connector cable away from power and high-voltage lines to prevent electromagnetic interference. During sensitivity adjustment, rotate the trimmer slowly using the recommended procedure: position the target, find the switching point, then set the trimmer to the midpoint. Furthermore, verify that the green stable operation indicator remains lit during normal production. Besides, clean the lens cover with a soft cloth and mild solvent when the output indicator flickers unexpectedly. Therefore, scheduled alignment checks and reflector cleaning extend service life significantly.
Buyer's Guide FAQ
Q1: What is the sensing distance of the Keyence PZ-G62CN?
The PZ-G62CN detects objects from 0.1 to 1 meter when using the R-2L reflector.
Q2: Does the PZ-G62CN support transparent object detection?
Yes. The sensor features a dedicated retro-reflective optical system for clear targets.
Q3: What output type does the PZ-G62CN provide?
It offers an NPN open collector output rated at 30 VDC maximum and 100 mA maximum.
Q4: Which connector type does the PZ-G62CN use?
This model uses an M8 connector. Note that the cable is sold separately.
Q5: Can I use the PZ-G62CN in washdown environments?
Yes. The enclosure carries IP67 and IP69K ratings for water and dust resistance.
