Cable Handling

When integrating Reed Switches soldered to cables or using off-the-shelf Magnet Sensors with cables, ensuring proper handling practices is crucial to prevent changes in operating or releasing distances, increased contact resistance or even premature sensor failure.

Initially, it’s important to note that reed switch assemblies or Magnet Sensors are typically supplied with single cables of the same color. These cables should not be twisted during installation as twisting can potentially dislodge the internal soldering or welding, leading to damage to the electrical contacts. Similarly, cables should not be bent too sharply near the plastic housing to avoid stressing the solder joints.

For applications involving Magnet Sensors mounted on moving parts, it’s advisable to use cables with a higher number of strands in their core. This design choice reduces the risk of work hardening in the cable, which can occur from repeated bending and movement, potentially compromising the cable’s integrity over time. It is also important to note that the cable weight is tied to the moving parts on the machine rather than the internal sensor taking the load of the cable movement.

Furthermore, when securing cylindrical Magnet Sensors housed in plastic, it’s essential not to clamp them excessively tightly onto fixtures. Over-tightening can exert pressure on the internal components, including the reed switch contacts, potentially causing damage or affecting their operational reliability. For a sensor diameter of 6mm it is better to use Allen screen of sizes M2 or M3 for clamping and use a torque wrench with recommended settings for plastic housings.

These precautions are recommended based on industry standards and guidelines aimed at optimizing the durability and performance of Reed Switches and Magnet Sensors in various applications. By following these best practices during installation and use, manufacturers and integrators can minimize the risk of premature sensor failure, ensuring consistent and reliable operation over the sensor’s lifespan in industrial automation, automotive, and other critical applications.