Use these buttons to explore the different proximity probe solutions available for your specific application:
CTC offers a wide variety of proximity probe driver configurations. Regardless of configuration, all PRO Line drivers come equipped with a buffered BNC that allows the user access to unfiltered voltage data.
The voltage driver has a dynamic voltage output that is compatible with industry-standard continuous vibration monitoring systems and is the format specified in API Standard 670. The dynamic voltage output is proportional to the DC gap between the target material and the probe tip.
4-20 mA DRIVERS:
4-20 mA Drivers Proportional to DC Gap:
Probe showing proportional output for the 4-20 mA signals. With shaft surface at 50 mils, 4-20 output is 12 mA. If the gap increases to 70 mils, 4-20 output will be 16 mA.
Radial Application Drivers:
In radial applications, the probe drivers select the average shaft surface distance and the 4-20 is proportional to the overall peak-to-peak vibration in mils around the average surface of the shaft.
Axial Application Drivers:
In the thrust position the probes auto-range to the face of the shaft or thrust collar and the 4-20 is proportional to the positive or negative vibration away or toward the probe, as shown.
4-20 mA Axial Probe Driver Series
This driver series only focuses on the DC portion of the original voltage signal and will provide the user data on the position of the shaft while filtering out the AC portion of the signal which indicates vibration. These are primarily used at the end of the shaft or on a shaft collar if there is one available to measure thermal expansion or axial thrust. Often this information is used to trigger alarms and switches to shut down a machine if the shaft moves beyond a designated distance from its original position.