This LM18 sensor finds metal objects without touching them. It's built for factory use, with an M18 threaded body and a quick-connect plug. The sensor runs on 6-36VDC power, so it works with many existing setups. Features and Benefits
- Different output types - Pick an M18 sensor with NPN (sinking) or PNP (sourcing) output. This lets it match your PLC's input needs. You can choose the right logic for your controller.
- Two sensing ranges - Get a sensor with a 5mm range for close work. Or choose an 8mm range for jobs needing more space. This choice helps you find the right fit.
- IP67 metal case - The LM18 sensor has an IP67 waterproof metal case. It keeps out dust and water. This means it works well in machining, food processing, or other harsh places.
- Aviation plug - The LM18 sensor's aviation plug makes it easy to install and replace. You can change a sensor in minutes. No complex wiring is needed. Applications
- On conveyor belts to count metal parts. Or to check if containers are in place before filling or sealing.
- In automated machines as a non-contact limit switch. It finds the end of a moving part's travel. This stops crashes.
- For position sensing in assembly jigs. It confirms a metal part is seated right before the next step.
What It Is
This is a proximity sensor, specifically a plug-in proximity switch model LM18. It is designed to detect the presence of nearby objects without physical contact. The sensor operates within a 6-36V DC range, which falls below the EU LVD voltage threshold of 75V DC. It connects via an aviation plug, ensuring a secure and reliable connection in industrial settings. The sensor offers NPN or PNP output types and is available with normally open (NO), normally closed (NC), or both NO+NC output states, providing flexibility for various control systems.
Key Uses & Applications
This industrial sensor is ideal for automated systems where precise object detection is required. Its 5mm or 8mm sensing distance (Sn) makes it suitable for tasks such as counting items on a conveyor belt, positioning components in machinery, or detecting limits of motion. For example, it can be used to confirm a component is in place before a machine cycle begins. The NPN/PNP output types allow for integration into a wide range of control circuits, making it a versatile electronics module for various industrial applications.
How to Choose
When selecting this proximity sensor, consider the required sensing distance; options are 5mm or 8mm. The operating voltage is 6-36V DC, so ensure compatibility with your power supply. Determine whether an NPN or PNP output type is needed for your control system, along with the desired output state: normally open (NO), normally closed (NC), or both. To test a proximity sensor, apply the correct voltage and observe its output change when an object enters its sensing range. An aviation plug connection offers robust attachment compared to simpler wiring.
Operating Voltage: 6-36V DC. EU LVD Voltage: Below 50V AC or 75V DC. Connectivity: Aviation Plug. Function: Proximity sensor. Model: LM18. Output State: NO, NC, NO+NC. Output Type: NPN, PNP. Product Name: Plug-in Proximity Switch. Sensing Distance (Sn): 5mm / 8mm. Cable Length: Typically 2 meters (with aviation plug). Housing Diameter: 18 mm. Housing Material: Nickel-plated brass or stainless steel. Operating Voltage: 6-36 VDC. Output Configuration: NO (Normally Open), NC (Normally Closed), NO+NC (selectable or model dependent). Output Type: NPN, PNP. Operating Temperature: -25°C to +70°C. Protection Rating: IP67. Connection Type: Aviation Plug. Current Consumption: 200 mA (max). Detection Object: Ferrous metals (standard target: mild steel). Response Frequency: Typically 500 Hz. Sensing Distance (Sn): 5mm / 8mm (selectable or model dependent). Q: What are the different sensing distances available for this M18 switch? A: This model comes in two main versions based on sensing distance. You can choose either a 5mm detection range or an extended 8mm range, both in the same M18 threaded body.. Q: How does this proximity sensor handle different PLC input types like NPN or PNP? A: It's designed to be adaptable for your specific setup. We offer it in NPN or PNP output configurations, and you can also select Normally Open (NO), Normally Closed (NC), or a four-wire NO+NC version to match your system's logic.. Q: What is the housing made of and what kind of connector does it use? A: The sensor has a nickel-plated brass body, which offers good protection against corrosion in typical industrial environments. It uses a standard aviation plug connector for a secure and easy-to-disconnect interface.. Q: Is there a specific benefit to using a plug-in sensor instead of one with a fixed cable? A: Yes, the main advantage is faster replacement. If a sensor needs to be changed, you can just unplug the faulty unit and plug in a new one, which avoids the time and effort of re-routing a whole new cable.. Q: What's your warranty policy if one of these sensors fails after installation? A: We provide a 12-month warranty that covers any defects in manufacturing. If the sensor fails within a year of purchase due to a covered issue, just reach out to us and we'll help you get a replacement..