Why Choose the Carlo Gavazzi PH18CNT20M1 Through-Beam Photoelectric Transmitter?
The Carlo Gavazzi PH18CNT20M1 is a compact through-beam photoelectric transmitter designed for reliable long-range object detection in industrial automation applications. Part of the Carlo Gavazzi PH18 series, it combines a space-efficient square housing with M18-compatible mounting, providing a practical sensing solution for conveyors, packaging machinery and automated production equipment.
The PH18CNT20M1 operates as the transmitting element of a separate transmitter-and-receiver photoelectric sensing system. It generates 850 nm modulated infrared light towards the corresponding PH18 receiver, allowing objects to be detected when they interrupt the optical beam. This through-beam principle provides dependable detection across long distances without relying on light being reflected from the target itself.
Designed for operating distances of up to 20 m, the PH18CNT20M1 operates from a standard 10–30 V DC supply and features an M12 plug connection for quick installation and replacement. Its compact ABS housing and IP67/IP69K protection make it well suited to demanding industrial environments, including applications subject to intensive cleaning.
Key Advantages
- Long 20 m through-beam operating distance for reliable detection across machinery and conveyor systems.
- Separate transmitter and receiver sensing principle provides dependable detection across a wide range of target materials.
- 850 nm modulated infrared light supports stable long-range optical sensing.
- Standard 10–30 V DC operating supply suits common industrial automation systems.
- M12 plug connection simplifies installation, servicing and sensor replacement.
- Compact square design with M18-compatible mounting suits space-conscious machinery.
- IP67/IP69K protection supports operation in demanding and washdown environments.
Key Features
- Carlo Gavazzi PH18 photoelectric sensor series.
- Through-beam photoelectric transmitter.
- Up to 20 m rated operating distance when paired with the corresponding receiver.
- 850 nm modulated infrared light source.
- 10–30 V DC rated operating voltage.
- Dedicated transmitter design with no switching output.
- LED indication for transmitter power status.
- Reverse-polarity and transient protection.
- M12 plug electrical connection.
- Compact square housing with M18-compatible mounting.
- Durable ABS plastic construction.
- IP67 and IP69K degrees of protection.
Reliable Long-Range Through-Beam Detection for Industrial Automation
Through-beam photoelectric sensing uses a separate transmitter and receiver installed on opposite sides of the area being monitored. The Carlo Gavazzi PH18CNT20M1 generates the infrared optical beam while the corresponding PH18 receiver monitors its presence. When a product, component or other object interrupts the beam, the receiver changes its switching state and signals the connected PLC or machine controller.
Because detection is based on interruption of a dedicated optical beam rather than light reflected from the target, through-beam systems provide dependable sensing across long distances and can detect objects with a wide range of surface properties. The PH18CNT20M1 combines this principle with a 20 m operating range, compact construction and convenient M12 connection for efficient integration into industrial machinery.
Typical Applications
- Long-range conveyor object detection.
- Packaging and wrapping machinery.
- Material handling and logistics systems.
- Product counting and positioning.
- Presence and absence monitoring.
- Machine access and passage detection.
- Automated production and assembly lines.
- PLC-controlled industrial automation systems.
