Bently Nevada 330104-00-07-10-01-05 Proximity Probe

Description The Bently Nevada 330104-00-07-10-01-05 is a 3300 XL 8 mm metric proximity probe featuring an integral M10 x 1 threaded case and stainless steel fluid-resistant armor. Operating as a core component of the 3300 XL Proximity Transducer System, this eddy-current sensor delivers non-contact, high-frequency measurements of static gap (position) and dynamic motion (vibration). It is explicitly designed for installation on critical rotating machinery running on fluid-film bearings—such as industrial gas turbines, centrifugal compressors, and high-velocity pumps—and is fully compliant with the mechanical and thermal criteria established by the American Petroleum Institute’s API 670 standard.   Technical Specifications & Part Number Breakdown The specific alphanumeric configuration 330104-00-07-10-01-05 defines the following mechanical, electrical, and regulatory specifications: Option Code Parameter Type Specification / Selection Value 330104 Product Series 3300 XL 8 mm Proximity Probe, M10 x 1 Thread, with Stainless Steel Armor -00 Unthreaded Length 0 mm -07 Overall Case Length 70 mm -10 Total Length 1.0 meter (3.3 feet) -01 Connector & Cable Type Miniature coaxial ClickLoc connector with connector protector, standard armored cable -05 Agency Approval Multiple Approvals (CSA, ATEX, IECEx intrinsically safe and non-incendive ratings) Physical & Material Composition Probe Tip Material: Polyphenylene sulfide (PPS) high-performance plastic. Probe Case Material: AISI 303 or 304 stainless steel (SST). Armor Construction: Flexible AISI 302 SST conduit protecting the internal 75 \Omega triaxial, fluoroethylene propylene (FEP) insulated cable.   Supply Status and Procurement Logic Condition: New Original / Factory Sealed (New Surplus inventory available upon stock rotation) Warranty: 12-Month Comprehensive Technical Warranty Availability: In Stock Lead Time: Ships within 1 to 3 business days from order confirmation Pricing: Price subject to current market conditions and raw material indices. Contact our sales engineering team for a firm commercial quotation.   Architectural Context and Integration Constraints In field deployments of machine protection systems (such as the Bently Nevada 3500 series platform), the 330104 armored probe provides high mechanical resilience. However, system integrators must strictly observe the following physical and electrical parameters during plant-floor execution: Total Loop Length Math The -10 option designates a 1.0-meter total probe length. Proximity transducer systems rely on precise LC resonant circuit tuning. To maintain the standard scale factor of 7.87 V/mm (200 mV/mil), the total physical length of the probe plus any extension cable must match the required length of the Proximitor Sensor (typically 5.0 meters or 9.0 meters). For a 1.0-meter probe, you must deploy a matching 4.0-meter extension cable to interface with a standard 5.0-meter Proximitor, or an 8.0-meter extension cable to interface with a 9.0-meter Proximitor. Mismatching these lengths will cause significant calibration drift across the linear range. Armor Routing and Minimum Bend Radii While the flexible stainless steel armor prevents the coaxial jacket from being nicked, crushed, or sheared by sharp metal edges inside machine housings, it reduces the overall flexibility of the assembly. The internal coaxial cable must not be bent past a minimum radius of 25.4 mm (1.0 inch), and the armored sleeve must not exceed a minimum bend radius of 30 mm. Exceeding these thresholds introduces micro-fractures into the copper-clad steel center conductor, changing its impedance and introducing intermittent voltage spikes that can trigger false machine trips. Connector Protector Application The -01 option includes a pre-installed connector protector. This thick, oil-resistant sleeve is designed to isolate the miniature coaxial ClickLoc junction from exposure to synthetic or mineral-based bearing lubrication oils. Oil ingress across the gold-plated coaxial faces causes signal dampening and impedance anomalies. If the probe is mounted inside a wet-sump area or high-vibration environment, the protector sleeve must be sealed using self-fusing silicone tape during final commissioning.   Frequently Asked Questions (FAQ) What is the mechanical benefit of selecting the 330104 over the 330103 probe? The 330104 features a factory-installed flexible stainless steel armor conduit over the cable, whereas the 330103 is an unarmored probe. Choose the 330104 if the probe cable must be routed through open terminal boxes, harsh structural gaps, or areas where field maintenance crews could step on or snag the exposed line. How do I verify the mechanical limits during installation of this 70 mm case? With an overall case length of 70 mm and 0 mm unthreaded portion, the entire body of the probe is threaded with M10 x 1 threads. Ensure that your counterbore depths or bracket clearances can accept the full 70 mm length without bottoming out the probe tip directly onto the shaft target material during the initial cold gap adjustment. What are the proper electrical troubleshooting steps for a suspected fault? Disconnect the ClickLoc connector from the extension cable and utilize a calibrated digital multimeter: Core-to-Shield Resistance: A healthy 1.0-meter probe cable will exhibit a low DC resistance value (typically between 4.0 and 6.0 \Omega; verify exact temperature coefficients with the Bently Nevada reference manuals). An open circuit indicates an internal break. Shield-to-Armor Isolation: Measure the resistance between the outer coaxial shield and the stainless steel armor. This value must read infinity. Any continuity indicates an insulation breakdown, which will inject ground loop noise into the monitoring rack. 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