Building on its established Senturion proximity probe range, the PRI Series offers a single probe assembly solution with direct processed outputs which eliminates the need for a separate driver. 

Recent design enhancements have resulted in improved performance for less demanding OEM applications with operating temperatures up to 120ºC, such as industrial gearboxes, pumps fans, blowers and hydro-generator applications. Meanwhile the 180ºC rated standard XPR04 probes with separate drivers are suitable for use on higher temperature machines such as turbines.  

Proximity probes can play an important role in machine shaft vibration, position and speed measurements, providing operators critical information on the rotating plant dynamic performance and bearing condition. The PRI is suitable for these applications and is said to provide important benefits over other types of probe systems on the market.  

Higher reliability is said to be assured due to there being no external driver and tuned cable assemblies whereas, Sensonics says, coaxial connector interfaces are a major failure point on standard proximity probe systems as they are susceptible to the ingress of oil and dirt which can result in intermittent connection through either improper installation or mechanical stresses.

The PRI series has no cable length restrictions and can drive long cable distances (>500m) to the connecting equipment.

Sensonics adds that the probes are more cost effective and easier to install as there is no driver, extension cable or associated driver housing, keeping capital and installation costs to an absolute minimum.  

Utilising the same 8mm diameter tip as per API670 proximity probes, the case body is available in the standard M10 and 3/8in UNF variants, providing an easy retrofit option. There is no need for system matching, which means that the right driver, extension cable and probe are assembled on the machine. The PRI is available in a standard 10m cable for direct termination to the connecting equipment or a local junction box. 

In addition, there is one probe for all machine measurement points so there is no requirement to stock variants of extension cables and drivers. The PRI probe is suitable for OEM applications.

More at: https://www.sensonics.co.uk/products/vibration-and-position-monitoring/