SDP Gap distance sensor: Setup and support

Thank you for your purchase of an SDP air gap sensor, which offers a refined alternative to traditional measurement methods. This page provides a comprehensive overview of setting up and supporting the SDP air gap sensor to ensure optimal performance. Visit our device configuration and FAQ pages for more details. 

Should you need additional support, feel free to contact our service center at 800-441-8246 and speak to one of our applications engineers.

Installation guidelines for optimal performance

Proper installation ensures optimal performance for gap distance sensors. 

Operating pressure requirements

For accurate gap measurement, the SDP sensor operates optimally within a pressure range of 14.5 to 44 psi. While it can withstand up to 232 psi for purging purposes, optimal accuracy is maintained within the specified operating range.

Flow direction considerations

It's crucial to install the SDP sensor following the directional arrow indicated on its body. This ensures reliable measurements by providing enough straight pipe run leading into the sensor.

Flexible orientation

The SDP sensor offers versatile installation orientations. However, to prevent heat from the heated probe influencing the flow measurement, avoid positioning the sensor with the pipe to the left of the sensor head.

Nozzle configuration

The sensor's thermal flow measurement can be affected by moisture and particles. Mount the SDP sensor higher than the air nozzles to prevent contamination. Note that nozzle design is crucial for accurate measurements, with specific requirements for length, bore diameter, and taper.

Device configuration and programming

Maximize your sensor with correct configuration and by using the SDP's programming features.

Common programming features

The SDP sensor shares programming terminology with other ifm process sensors. It offers various switching and analog outputs to cater to diverse application needs.

Setting the gap distance switchpoint

For go/no-go applications, the switchpoint can be conveniently set using the sensor's pushbuttons, simplifying the process and ensuring precise gap measurement.

Analog signal scaling

The sensor allows for analog signal scaling for gap distance, flow rate, or pressure, providing flexibility in monitoring and control.

Nozzle configuration

Accurate distance measurement necessitates inputting the correct number and size of the nozzles in the sensor's configuration menu.

Configuration with moneo|configure software

For a more user-friendly setup, moneo|configure software enables easy programming and visualization of the SDP sensor along with other ifm IO-Link enabled sensors. This software supports manufacturer-independent device setup and provides a dynamic cockpit view for real-time monitoring.

Additional information

The SDP air gap sensor FAQs section provides valuable insights and answers to common questions about the SDP air gap sensor's application in modern machining tools. Key highlights include:

• Difference between measuring air and purge air: The SDP sensor is designed to withstand the higher pressure required for purging air, eliminating the need for additional bypass systems. This makes it more efficient and less complex than traditional gap measurement systems.
• Nozzle connection capacity: The SDP sensor can connect to up to 5 nozzles with diameters ranging from 1 to 2 mm. The displayed value represents the average of all connected nozzles, providing a comprehensive measurement.
• Application limitations: The SDP sensor is optimized for air gap measurements and is not suitable for monitoring the gap between a lubricant nozzle and a workpiece, ensuring its specific use in air-based applications.