Sensors for ABNOX metering valves

In automated dispensing technology, electronic monitoring of valve status is a fundamental requirement for process reliability. Sensors for ABNOX metering valves provide non-contact detection of the piston position. By providing feedback on the exact end positions (open/closed) to the higher-level plant control system (PLC), every individual metering cycle can be validated. This prevents defective batches and ensures the metering cycle is completed within defined parameters before the next process step is initiated.

Monitoring is primarily based on magnetic sensing technology. Since the control pistons of the metering valves are equipped with permanent magnets, the externally mounted sensor detects changes in the magnetic field during piston movement. This information is transmitted as a binary switching signal. Unlike purely time-controlled process sequences, this sensor technology enables real-time monitoring of the tribological chain. Malfunctions such as mechanical blockages or insufficient control air pressure are detected immediately and issued as error messages.

Product Specification

Specifically designed for direct mounting within the integrated sensor grooves of ABNOX metering valves. These sensors are characterized by high switching accuracy and minimal hysteresis. The compact design allows for space-saving integration, while the electronic circuitry is protected against short circuits and reverse polarity. Equipped with standardized connectors or fixed cables, rapid integration into the electrical periphery is guaranteed. High vibration and shock resistance ensure reliable performance in highly dynamic manufacturing processes.

• Non-contact Detection:
  The wear-free measurement principle ensures a virtually unlimited sensor service life, independent of the number of switching cycles.
• High Protection Rating: 
  Housing designs (e.g., IP67) provide protection against the ingress of moisture, lubricant residues, and dust.
• LED Status Indication:
  Integrated optical function indicators facilitate switching point adjustment and fault diagnosis directly at the device.
• Thermal Stability: 
  Validation for wide temperature ranges ensures constant switching point stability, even under thermal stress on the dosing system.

The use of ABNOX magnetic field sensors transforms the metering valve into an intelligent system component. By monitoring the stroke movement, indirect control of the media flow is enabled. If the signal is absent, the process is stopped before unlubricated components leave the production line. This reduces scrap and minimizes inspection efforts in quality assurance. Consequently, the sensor technology forms the technological basis for transparent and reproducible lubricant application in modern industrial plants.