Sick GRTB18S-N2317 Photoelectric Sensor
Sick GRTB18S-N2317 photoelectric sensor offers axial background suppression with 150 mm sensing range and NPN output for industrial automation. This Sick Axial Background Suppression Sensor operates using visible red PinPoint LED at 650 nm wavelength, supports 10–30 V DC supply, and provides light switching via potentiometer adjustment. It belongs to Sick sensing solutions, listed under Sick Photoelectric Sensors and the GR Series for industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Product | GRTB18S-N2317 |
Sick GRTB18S-N2317 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Dimensions (W x H x D) | 18 mm x 18 mm x 38.1 mm |
| Housing design (light emission) | Cylindrical |
| Thread diameter (housing) | M18 x 1 |
| Optical axis | Axial |
| Sensing range max. | 3 mm ... 300 mm |
| Sensing range | 20 mm ... 150 mm |
| Type of light | Visible red light |
| Light source | PinPoint LED |
| Light spot size (distance) | Ø 7 mm (100 mm) |
| Wave length | 650 nm |
| Adjustment | Potentiometer, 270° |
| Indication | LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 30 mA |
| Switching Output | NPN |
| Switching mode | Light switching |
| Signal voltage PNP HIGH/LOW | Approx. VS / ≤ 3 V |
| Output current Imax. | ≤ 100 mA 3) |
| Response time | < 500 µs 4) |
| Switching frequency | 1,000 Hz 5) |
| Connection type | Connector M12, 3-pin |
| Protection class | III |
| Housing material | Plastic, ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Items supplied | Fastening nuts (2 x) |
| Ambient operating temperature | –25 °C ... +55 °C 9) |
| Ambient temperature, storage | –40 °C ... +70 °C |
The GRTB18S-N2317 Sick Axial Background Suppression Sensor is a photoelectric proximity sensor designed for controlled short-range detection. The GRTB18S-N2317 Sick Axial Background Suppression Sensor supports a 20–150 mm sensing range, stable NPN switching output, and axial optical alignment for consistent detection results. It belongs to the GR Series and is used in industrial automation systems requiring precise object recognition.
This sensor is commonly applied in conveyors, packaging machinery, assembly lines, and automated handling equipment. Background suppression helps reduce false triggering from reflective surfaces behind targets. With a <500 µs response time and 1,000 Hz switching frequency, the sensor maintains reliable signal output in fast-moving industrial processes.
The GRTB18S-N2317 from Sick is built for dependable industrial operation. Its IP67 enclosure rating, compact M18 housing, and supplied fastening nuts support secure installation. As part of the GR Series, the GRTB18S-N2317 aligns with Sick engineering standards and remains suitable for continuous use in industrial automation environments.
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