Name: Pepperl+Fuchs GL20-RT_32_40a_98a Photoelectric Sensor - INOSAKI
SKU: PEPPERL-FUCHS-GL20-RT/32/40a/98a
Price: 197.52 USD
Availability: InStock

Technical Overview

The Pepperl+Fuchs GL20-RT/32/40a/98a is a high-resolution photoelectric slot sensor featuring a 20 mm slot width, modulated visible red light, and a robust anodized aluminum housing. It includes a sensitivity adjuster and light/dark on switching, providing a PNP output via a 3-pin M8 plug, ideal for precise object detection in demanding industrial environments.

Key Features

Optimized for detection of small parts (0.3 mm target size).
High switching frequency of 3 kHz.
Multiple device installation possible without mutual interference (no cross-talk).
Sensitivity adjuster and light/dark on changeover switch.
Visible red light for easy alignment.
Degree of protection IP67.
Sturdy anodized aluminum housing.
PNP output, short-circuit proof, open collector.
Operating voltage 10-30 V DC.
M8, 3-pin connector.

Technical Specification Matrix

Parameter	Value
Light Source	LED
Light Type	Modulated visible red light
Target Size	0.3 mm
Slot Width	20 mm
Slot Depth	17 mm
Ambient Light Limit	100000 Lux
Operating Voltage (UB)	10 ... 30 V DC, class 2
Ripple	10 %
No-load Supply Current (I0)	15 mA
Output Type	1 PNP, short-circuit proof, open collector
Switching Voltage Max.	30 V DC
Switching Current Max.	100 mA
Repeat Accuracy	0.05 mm
Switching Frequency (f)	3 kHz
Response Time	≤ 160 µs
Ambient Temperature	-20 ... 60 °C (-4 ... 140 °F)
Storage Temperature	-20 ... 75 °C (-4 ... 167 °F)
Protection Type	IP67
Connection	M8 connector, 3-pin
Housing Material	Anodized aluminum
Light Exit Material	Glass

Industrial Applications

1. High-Speed Small Part Counting on Conveyor Belts

This sensor is ideal for accurately counting very small components, such as electronic pins, small screws, or pharmaceutical tablets, as they move rapidly on a conveyor belt. Its 20 mm slot width is perfectly suited for ensuring the object passes through the detection area, while the 0.3 mm target size guarantees even minute parts are reliably detected.

Problem Solved

Traditional sensors might miss small, fast-moving objects due to slower response times or insufficient resolution. This sensor's 3 kHz switching frequency and 0.3 mm target size solve this by providing rapid, precise detection.

High-speed detectionsmall part countingconveyor automation0.3mm target3kHz switching20mm slot

2. Automated Assembly Line Presence Sensing in Washdown Environments

The GL20-RT/32/40a/98a can reliably detect the presence or absence of components during automated assembly processes, even in areas requiring frequent cleaning or exposure to coolants and lubricants. Its IP67 rating ensures protection against dust and temporary immersion in water, while the robust aluminum housing resists industrial wear and tear.

Problem Solved

In assembly lines with washdown procedures or exposure to fluids, standard sensors can fail due to ingress. The IP67 rating and durable housing prevent this, ensuring continuous operation and reduced downtime.

Industrial automationwashdown environmentsobject presence detectionIP67aluminum housingassembly line

3. Edge Detection and Alignment for Material Handling

This slot sensor can be used to precisely detect the edge of thin materials, such as paper, film, or labels, for accurate positioning and alignment in printing, packaging, or converting machinery. The 0.05 mm repeat accuracy ensures consistent and high-precision material guidance.

Problem Solved

Maintaining precise material alignment in high-speed processing requires sensors with excellent repeatability. This sensor's 0.05 mm repeat accuracy and visible red light for easy alignment provide the necessary precision to prevent material jams and ensure product quality.

Edge detectionmaterial alignmentpackaging machineryprinting applications0.05mm repeat accuracyvisible red light