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Proximity probe system with universal driver

Proximity probe system with universal driver

Condition monitoring specialist Sensonics has introduced a new range of proximity sensors suitable for measuring shaft vibration, position and speed on rotating plant. Building on the established Senturion proximity probe range, the new series offers a configurable universal driver suitable for all probe cable combinations and offers new features including a separate socket for gap voltage monitoring.

Proximity probe systems are made up of a calibrated probe, extension cable and driver. Utilising the eddy current principle, this combination forms a tuned circuit with the target material and variations in probe face to target distance are detected in this circuit by the driver. This provides a linearised voltage output proportional to target gap with a nominal sensitivity of 7.87mV/um. This type of measurement system provides highly accurate (resolution typically less than one micro-meter) vibration and relative positional measurements, for harsh environments up to 180°C.

The driver unit offers selectable system lengths of 5, 7 or 9m, with a front panel green LED indicating the selected option. This provides flexibility on-site when installing the system, where in most cases different system lengths are required on the various machine locations, with the additional benefit of minimising spares holding.  

The gap voltage monitoring socket assists with commissioning the probe system; a volt meter can be connected directly to the driver through the 3.5mm standard audio socket to display the gap voltage at the point of installation and the probe mechanical gap can then be adjusted to suite the application.

The cable system incorporates snap lock connectors which require no torqueing and provide a shake proof solution.

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