SICK GL10G-N1252 Photoelectric Retro-Reflective Sensor – Transparent Object Detection, 12 m, NPN
Key Takeaways
- Specialized for reliable detection of transparent objects such as glass bottles, PE/PP stretch film, and clear plastic sheets
- Long sensing range up to 12 m with PL80A reflector
- NPN switching output with 3-wire 2 m PVC cable connection
- Ideal for logistics, packaging, and conveyor automation applications
- Designed for applications where standard retro-reflective sensors are ineffective
- Integrates a dual-lens optical system specially designed for reliable Clear material detection
Overview of the SICK GL10G-N1252 Photoelectric Sensor
The GL10G-N1252 belongs to the GL10G sub-family of the SICK G10 series – an enhanced retro-reflective sensor line featuring Clear material detection capability. Unlike conventional GL10 sensors, the GL10G integrates a polarization filter and dual-lens optics that detect the minimum 20% signal attenuation produced when a transparent object interrupts the optical path between the sensor and reflector. This makes it indispensable in applications where product packaging is transparent or translucent.
Key technical highlights:
- Sensing range up to 12 m with PL80A reflector (10 m with P250) – outstanding operating reserve
- Clear material detection principle – detects glass, PE/PP film, clear PET, blister packs
- NPN open-collector output, ≤ 100 mA, response time ≤ 1 ms
- 3-wire, 2 m PVC cable – direct connection without additional connector hardware
- IP67 enclosure rating – dust-tight and resistant to water immersion up to 1 m
Technical Specifications – SICK GL10G-N1252
| Parameter |
Value |
| Operating Principle |
Photoelectric retro-reflective sensor |
| Detection Principle |
Clear material detection |
| Maximum Sensing Range |
0.15 m – 12 m (with PL80A reflector) / 0.15 m – 10 m (with P250 reflector) |
| Effective Sensing Range |
0.3 m – 9.5 m (PL80A) / 0.3 m – 8 m (P250) |
| Light Type |
Visible red light, wavelength 625 nm |
| Light Source |
PinPoint LED (avg. service life 100,000 h at +25°C) |
| Light Spot Diameter (at 5 m) |
Ø 58 mm |
| Switching Output |
NPN, open collector |
| Switching Mode |
Light/dark-switching (selectable via light/dark selector) |
| Max. Output Current (Imax) |
≤ 100 mA |
| Response Time |
≤ 1 ms |
| Max. Switching Frequency |
500 Hz |
| Supply Voltage |
10 VDC – 30 VDC |
| Current Consumption (no load) |
≤ 20 mA |
| Connection Type |
Cable, 3-wire, 2 m, PVC (connection diagram Cd-044) |
| Adjustment |
Potentiometer, 270° |
| Housing Material |
Plastic, ABS/PMMA |
| Dimensions (W × H × D) |
20 mm × 50 mm × 39 mm |
| Weight |
≈ 90 g |
| Enclosure Rating |
IP67 |
| Ambient Operating Temperature |
–30°C to +60°C |
| Ambient Storage Temperature |
–40°C to +70°C |
| Circuit Protection |
A (reverse-polarity), B (I/O protection), C (interference suppression), D (output overcurrent & short-circuit) |
| EMC Standard |
EN 60947-5-2 |
| UL Certification |
UL File No. E348498 |
| Protection Class |
Class III |
| Items Supplied |
Mounting bracket BEF-G10DC01, Reflector P250 |
| Part No. |
1065895 |
Specifications sourced from SICK G10 Product Information. Official datasheet: https://www.sick.com/media/pdf/2/02/002/dataSheet_GL10G-N1252_1065895_en.pdf
Industrial Applications of the SICK GL10G-N1252
| Application |
Description |
| Transparent material detection (film, glass, plastic) |
The Clear material detection principle (signal attenuation ≥ 20%) reliably identifies glass bottles, PE/PP film, blister packs and clear plastic sheets – even at high conveyor speeds where standard retro-reflective sensors fail. |
| Logistics & sortation conveyors |
Detects stretch-film-wrapped parcels and transparent packaging at ranges up to 12 m. The Q-Lock mounting system enables sensor installation and alignment on Ø12 mm round bars within seconds – critical for large-scale roller conveyor arrays. |
| Food & beverage production lines |
IP67 enclosure rating withstands industrial wash-down and high-humidity environments. Accurately detects transparent glass or PET bottles on filling, capping and labeling lines. |
| Electronics & semiconductor manufacturing |
The PinPoint LED generates a precise Ø58 mm light spot at 5 m, enabling reliable detection of glass panels, clear display covers and transparent packaging in cleanroom-adjacent environments. |
| Pharmaceutical packaging |
Detects transparent blister packs and clear plastic trays with consistent reliability, supporting GMP-compliant inspection systems on high-speed packaging lines. |
AUMI has supplied and commissioned SICK GL10G sensors for numerous logistics automation and packaging line projects across Vietnam, delivering consistent detection performance under varying ambient light conditions.
GL10G-N1252 vs. GL10G-N4251 – Which Model to Choose?
| Criteria |
GL10G-N1252 |
GL10G-N4251 |
| Connection Type |
Cable, 3-wire, 2 m PVC |
M12 male connector, 4-pin |
| Part No. |
1065895 |
1138263 |
| Best for |
Fixed wiring installations without M12 connectors; quick setup without additional hardware |
Modular systems; rapid sensor replacement without cable cutting; standardized M12 wiring infrastructure |
| Output Type |
NPN |
NPN |
| Max. Range |
12 m (PL80A) |
12 m (PL80A) |
| Enclosure Rating |
IP67 |
IP67 |
Note: Both models are functionally identical. Select GL10G-N1252 for permanent cable installations; select GL10G-N4251 when M12 quick-disconnect connectors are required for rapid maintenance or modular wiring.
Why Source the SICK GL10G-N1252 from AUMI?
Purchase the SICK GL10G-N1252 photoelectric sensor from AUMI – the authorized SICK distributor in Vietnam – with competitive pricing, 12-month manufacturer warranty and 24/7 technical support.
- 100% genuine SICK products with full certificates of origin (CO/CQ) and traceable supply chain
- 12-month manufacturer warranty; 24/7 technical hotline for application support
- Nationwide delivery; stock held in Hanoi and Ho Chi Minh City; free reflector selection advisory
Frequently Asked Questions – SICK GL10G-N1252 Photoelectric Sensor (FAQ)
Q1: What is the SICK GL10G-N1252 photoelectric sensor used for?
A: The GL10G-N1252 is a photoelectric retro-reflective sensor designed for reliable detection of transparent objects – glass bottles, PE/PP stretch film, clear plastic sheets and similar materials – at sensing ranges up to 12 m (with PL80A reflector). It is widely used in logistics, food & beverage, pharmaceutical and electronics manufacturing.
Q2: How does the GL10G-N1252 detect transparent materials?
A: The sensor employs Clear material detection using a dual-lens optical system combined with a polarization filter. Unlike standard retro-reflective sensors, the GL10G detects the minimum 20% signal attenuation caused by transparent objects passing through the beam path, ensuring reliable switching even when the object is nearly invisible to conventional sensors.
Q3: What is the difference between GL10G-N1252 and GL10G-N1251?
A: Both models share identical technical specifications. GL10G-N1252 includes mounting bracket BEF-G10DC01 and reflector P250 in the package. GL10G-N1251 is supplied without accessories. For a complete installation-ready kit, GL10G-N1252 offers better value.
Q4: How do I wire the GL10G-N1252 NPN output to a PLC?
A: The GL10G-N1252 uses a 3-wire NPN open-collector output (connection diagram Cd-044): Brown = +V supply (10–30 VDC), Blue = GND (0 V), Black = signal output (Q). Connect the black wire to the digital input (DI) of an NPN-compatible (sink-type) PLC input card. Ensure a pull-up resistor or the PLC’s internal pull-up is active on the DI channel.
Q5: Where to buy the SICK GL10G-N1252 photoelectric sensor in Vietnam?
A: AUMI is the authorized SICK distributor in Vietnam, providing 100% genuine SICK products with full certificates of origin (CO/CQ), 12-month manufacturer warranty, and 24/7 technical support. Contact: +84 917 991 589 (Hanoi) | +84 932 226 100 (Ho Chi Minh City).
AUMI – Authorized GL10G-N1252 Distributor in Vietnam. Genuine products guaranteed, full CO/CQ documentation, 24/7 technical support.
📞 Hotline: +84 917 991 589 (Hanoi) | +84 932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
Offices:
- Hanoi: B44, Garden House Lot, Viet Hung Urban Area, Long Bien District
- Ho Chi Minh City: Floor 2, HS Building, 260/11 Nguyen Thai Binh, Tan Binh District
- Da Nang: Floor 9, PV Bank Building, 2 Road 30-4, Hoa Cuong Ward
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