Why Choose the Carlo Gavazzi PH18CNT20NASA Through-Beam Photoelectric Receiver?
The Carlo Gavazzi PH18CNT20NASA is a compact and robust through-beam photoelectric receiver designed for reliable long-range object detection in industrial automation and machine control applications. As part of the Carlo Gavazzi PH18 photoelectric sensor series, it provides a sensing range of 1–20 m when paired and correctly aligned with the corresponding PH18 through-beam emitter.
The PH18CNT20NASA uses 850 nm modulated infrared light and provides NPN complementary NO+NC outputs, giving both normally open and normally closed switching signals for flexible integration with PLCs and industrial controllers. Light and dark switching functionality further increases installation flexibility across machinery, conveyor and production applications.
Operating from a 10–30 V DC supply, the PH18CNT20NASA is supplied with a 2 m fixed cable for direct machine wiring. Its compact square housing with M18 optics provides IP67 and IP69K protection, while ECOLAB suitability and an operating temperature range of -25 to +60 °C make it suitable for demanding industrial and washdown environments.
Key Advantages
- Long-range through-beam photoelectric detection from 1–20 m.
- NPN complementary NO+NC outputs provide flexible control options.
- Through-beam sensing delivers dependable detection across varying target colours and surfaces.
- 10–30 V DC operating supply suits common industrial automation systems.
- 2 m fixed cable provides straightforward machine wiring.
- Fast 500 Hz operating frequency supports high-speed object detection.
- IP67 and IP69K protection supports demanding industrial and washdown environments.
- ECOLAB suitability makes the sensor appropriate for equipment exposed to intensive cleaning processes.
Key Features
- Carlo Gavazzi PH18 photoelectric sensor series.
- Through-beam photoelectric receiver.
- 1–20 m sensing distance.
- 850 nm modulated infrared light.
- NPN complementary NO+NC outputs.
- Light and dark switching functionality.
- 10–30 V DC rated operating voltage.
- 100 mA maximum output current.
- 500 Hz operating frequency.
- Voltage drop of ≤2 V DC at 100 mA.
- 2 m fixed cable connection.
- Compact square housing with M18 optics.
- Short-circuit, reverse-polarity and transient protection.
- IP67 and IP69K degrees of protection.
- ECOLAB suitable construction.
Reliable Long-Range Through-Beam Detection
Through-beam photoelectric sensing uses separate emitter and receiver units installed opposite one another. The emitter directs a modulated infrared beam towards the receiver, and an object is detected when it interrupts the optical path. Because detection does not depend on light being reflected from the target itself, through-beam technology provides reliable sensing across long distances and for objects with different colours, finishes and reflectivity.
The Carlo Gavazzi PH18 series combines this dependable sensing principle with compact construction for modern industrial machinery. The PH18CNT20NASA provides up to 20 m sensing distance, complementary NPN switching, a 500 Hz operating frequency and robust IP67/IP69K protection, making it an effective solution for high-speed production, material handling and machine automation.
Typical Applications
- Industrial conveyors and material handling systems.
- Packaging and production machinery.
- Object presence and position detection.
- High-speed product counting and monitoring.
- Warehouse and logistics automation.
- Food and beverage processing equipment.
- Washdown machinery and production environments.
- Assembly and manufacturing equipment.
- Long-range object detection.
- OEM automation systems and machine building.
