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FEATURE SENSORS & SENSING SYSTEMS


SAVE TIME AND MONEY WITH FULLY INTEGRATED PROXIMITY PROBES


Condition monitoring specialists SENSONICS offer an extensive range of PROXIMITY SENSORS which includes their fully integrated PRI SERIES which build upon the success of their established Senturion proximity probe range


T


he innovative PRI Series is a single probe assembly solution featuring


direct processed outputs which eliminates the need for a separate driver. The benefits are a more cost- efficient and easy-to-install solution as there is no driver, extension cable or associated driver housing, so capital and installation costs are kept to an absolute minimum. Proximity probe systems are usually


made up of a calibrated probe, extension cable and driver. The new PR l04 proximity probe system is a fully integrated probe with all these elements contained in the probe body. 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, providing highly accurate vibration and relative positional measurements. Sensonics has continued to develop the


PRI Series which has further extended the applications for proximity sensing, such as a rod drop option for engine monitoring. This option provides both a dynamic output and bearing wear


12 FEBRUARY 2021 | IRISH MANUFACTURING


indicator by measuring the bottom dead centre (BDC) position of the crank of a reciprocating engine. The probe offers up to 4mm of BDC measurement range and auto-gapping LED’s enable easy installation and set-up. The bearing wear is captured through a sample and hold feature and is available on a 4-20mA current loop which avoids the need to use the engine speed (which may be variable) to capture the measurement and therefore simplifies the system. Also, recent design enhancements has


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


Proximity probe systems are usually made


up of a calibrated probe, extension cable and driver. The new PR l04 proximity probe system is a fully integrated probe with all these elements contained in the probe body"


Save time and money with fully integrated promity probes


machines such as steam turbines. Higher reliability is assured thanks to


no external driver and tuned cable assemblies, whereas coaxial connector interfaces can be a major failure point on standard proximity probe systems. This is because they are susceptible to ingress of oil and dirt which can result in intermittent connection through either improper installation or mechanical stress. Also the PRI option has no cable length restrictions compared to standard probes which are typically restricted to 5m and 9m systems due to the required tuned circuit between the separate driver and the probe. With the PRI option there is no such restriction as they can drive long cable distances (>500m) to the connecting equipment. It is available in a standard 10m cable


for direct termination to the connecting equipment or a local junction box and by utilising the same 8mm diameter tip (as per API670 proximity probes) the PRI case body is available in the standard M10 and 3/8” UNF variants providing an easy retrofit option.


 More at: https://www.sensonics.co.uk/condition -and-vibration-monitoring- sensonics-solutions/ Further details are available from: Russell King, Sensonics Ltd, Berkhamsted, Hertfordshire, UK Tel: +44 (0) 1442 876 833. Email: sales@sensonics.co.uk www.sensonics.co.uk


/ IRISHMANUFACTURING


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