{"product_id":"31000-28-05-00-056-01-02-bently-nevada-31000-series-proximity-probe-housing-assemblies","title":"31000-28-05-00-056-01-02 Bently Nevada 31000 Series Proximity Probe Housing Assemblies","description":"\u003cp\u003eConfigured for protective containment and external transducer adjustment in rotating machinery monitoring systems, the \u003cstrong\u003eBently Nevada 31000-28-05-00-056-01-02\u003c\/strong\u003e (\u003cstrong\u003e31000\u003c\/strong\u003e Proximity Probe Housing Assemblies) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Selection Matrix\u003c\/h3\u003e\n\u003cp\u003eThe individual configuration elements of the 31000-28-05-00-056-01-02 housing assembly are defined by the following suffix parameters:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e31000\u003c\/strong\u003e: Base model designation for standard proximity probe housing assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-28\u003c\/strong\u003e: Factory-installed 3300 XL 8 mm proximity probe with multiple hazardous area approvals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-05\u003c\/strong\u003e: Integrated probe cable length of 0.5 meter (20 inches).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-00\u003c\/strong\u003e: No standoff adapter included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-056\u003c\/strong\u003e: Probe penetration depth of 5.6 inches (142.24 mm).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-01\u003c\/strong\u003e: Conduit fittings option consisting of one 3\/4-14 NPT fitting and two plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-02\u003c\/strong\u003e: Main housing mounting thread size of 3\/4-14 NPT.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical \u0026amp; Physical Parameters\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e31000-28-05-00-056-01-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e37.0 x 9.0 x 8.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-51 to +177 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive housing (Integral probe powered by external Proximitor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Dome Material\u003c\/td\u003e\n\u003ctd\u003eGlass-reinforced polyphenylene sulfide (PPS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Sleeve Material\u003c\/td\u003e\n\u003ctd\u003e303 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegral Probe Type\u003c\/td\u003e\n\u003ctd\u003e3300 XL 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e2.0 mm (80 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Scale Factor\u003c\/td\u003e\n\u003ctd\u003e7.87 V\/mm (200 mV\/mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGap Voltage Validation and Rotor Dynamics Integration\u003c\/h3\u003e\n\u003cp\u003eThe 31000-28-05-00-056-01-02 assembly integrates a 3300 XL 8 mm probe inside a robust environmental dome, providing continuous measurement data for rotor dynamics monitoring. The target displacement is captured via high-frequency eddy-current probe scaling, outputting an analog signal to a companion 3300 XL Proximitor Sensor.\u003c\/p\u003e\n\u003cp\u003eFor proper integration into machinery protection systems (such as the Bently Nevada 3500 series), the field engineer must execute a physical gap voltage validation. The nominal target is set to -10 VDC, corresponding to the electrical midpoint of the transducer's linear performance curve. This design ensures that static axial movement or dynamic radial vibration remains centered within the calibrated -2 VDC to -18 VDC operating window.\u003c\/p\u003e\n\u003ch3\u003eShipping Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Bently Nevada 31000-28-05-00-056-01-02 housing assembly with pre-installed 3300 XL probe\u003c\/li\u003e\n\u003cli\u003e1 x 3\/4-14 NPT conduit fitting\u003c\/li\u003e\n\u003cli\u003e2 x Conduit port plugs\u003c\/li\u003e\n\u003cli\u003e1 x O-ring seal kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Instructions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThreading and Seal Engagement\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eApply a compatible thread sealant to the 3\/4-14 NPT mounting threads. Thread the housing assembly into the machine casing hand-tight, then wrench-tighten to ensure a leak-tight seal against internal machine pressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Gap Calibration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRemove the external PPS dome to expose the probe adjustment sleeves. Connect a digital voltmeter to the Proximitor terminal loop and rotate the internal adjustment sleeve until the DC gap voltage registers -10 VDC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocking the Adjustment Sleeve\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOnce calibration is achieved, lock the probe position using the integrated mechanical locknut. Tighten to standard specification to prevent drift caused by high-frequency vibration within the machine case.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConduit and Cable Routing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLead the 0.5 m probe cable out through the 3\/4-14 NPT conduit fitting. Ensure all unused conduit ports on the housing are sealed using the two provided stainless steel plugs to block moisture ingress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTransducer Housing FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCan the internal probe be replaced without shutting down the machinery?\u003c\/p\u003e\n\u003cp\u003eYes. The housing is designed to allow external access so that the proximity probe and its cable can be uninstalled or adjusted while the machine remains in operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the purpose of the PPS thermoplastic dome on the 31000 housing?\u003c\/p\u003e\n\u003cp\u003eThe polyphenylene sulfide (PPS) dome provides high-strength impact protection and resistance to corrosive chemical sprays, protecting the electrical connections inside.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy does this specific configuration omit a standoff adapter?\u003c\/p\u003e\n\u003cp\u003eThe \"-00\" option is chosen when the standard 5.6-inch probe penetration depth aligns directly with the machine casing thickness, rendering a standoff spacer unnecessary.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this 5.6-inch probe penetration depth require an internal support sleeve?\u003c\/p\u003e\n\u003cp\u003eNo. Sleeve supports are only required for penetrations exceeding 12 inches (305 mm) to mitigate the risk of mechanical resonance and probe stem bending.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat happens to the signal output if the target material is not AISI 4140 steel?\u003c\/p\u003e\n\u003cp\u003eThe scale factor will deviate from the nominal 200 mV\/mil. The Proximitor must be recalibrated to prevent inaccurate vibration and position amplitude readings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the housing gas-tight when properly installed on the machine case?\u003c\/p\u003e\n\u003cp\u003eYes. The housing features standard O-ring seals and NPT thread engagement, which successfully contain oil mist and gases up to normal machinery casing pressures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the primary difference between the 31000 and 32000 housing series?\u003c\/p\u003e\n\u003cp\u003eThe 31000 series operates from -51 to +177 deg C, whereas the 32000 series has an extended range of -62 to +204 deg C and uses Inconel 718 components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow should the conduit connections be sealed to maintain the explosion-proof rating?\u003c\/p\u003e\n\u003cp\u003eThread the certified 3\/4-14 NPT fitting tightly and use approved explosion-proof sealing compound at the conduit entry to prevent gas migration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46025368436909,"sku":"31000-28-05-00-056-01-02","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/xian-58_f8f91bc2-8443-4837-9ea0-8d9dfde286be.jpg?v=1784276634","url":"https:\/\/www.maxwellplc.com\/ga\/products\/31000-28-05-00-056-01-02-bently-nevada-31000-series-proximity-probe-housing-assemblies","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}