Bently Nevada 330104-16-23-10-02-00 Proximity Transducer System – 3300 XL 8mm

Bently Nevada 330104-16-23-10-02-00: Eddy-Current Proximity Transducer System for Critical Rotating Machinery

The Bently Nevada 330104-16-23-10-02-00 is a factory-assembled, calibrated proximity transducer system within the 3300 XL 8mm Series — an eddy-current-based measurement platform engineered for continuous, non-contact monitoring of radial shaft vibration, axial position, and differential expansion in turbomachinery and rotating equipment. This specific configuration comprises a reverse-mount 10-32 UNF 8mm probe tip, a 16-inch armored extension cable, and a 23-foot interconnect cable, forming a complete signal chain from the shaft surface to the driver/oscillator input terminal.

In turbine protection architectures, the proximity transducer occupies the first node of the measurement loop. Its output — a DC-biased, amplitude-modulated voltage proportional to the gap between probe face and target shaft — feeds directly into the 3300 XL driver, which conditions the signal before transmission to the 3500 series monitor rack. The accuracy of every downstream alarm, trip, and trend record depends entirely on the dimensional and electrical integrity of this transducer assembly. The 330104-16-23-10-02-00 is manufactured to tolerances that sustain ±0.5% linearity error across the full 0.25 mm to 2.25 mm measurement range, a specification that remains stable across the probe’s rated thermal envelope.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

The 330104-16-23-10-02-00 operates on the principle of high-frequency eddy-current induction. The probe coil, driven by the 3300 XL oscillator at approximately 1 MHz, generates an alternating electromagnetic field that penetrates the conductive target shaft. As the gap between probe face and shaft surface changes, the eddy-current loading on the coil changes proportionally, altering the coil’s effective impedance. The driver circuit converts this impedance variation into a linear DC voltage output — the core measurement signal.

Armored Extension Cable Architecture: The 16-inch armored extension cable is not a passive conductor. It is a precision coaxial assembly with a defined characteristic impedance matched to the probe coil and driver input. The stainless steel armor braid provides mechanical protection against abrasion and crush loads in tight bearing housing installations, while the inner dielectric maintains the cable’s capacitance per unit length within the tolerance band required for accurate scale factor calibration. Any substitution with non-OEM cable will shift the system’s calibrated sensitivity.

EMC Design: The coaxial construction of both the extension and interconnect cables provides inherent shielding against radiated electromagnetic interference. The shield is grounded at the driver end only (single-point grounding), preventing ground loop currents that would appear as low-frequency noise on the measurement signal. In environments with high-power variable-frequency drives or arc furnaces, this single-point shield topology maintains signal integrity where unshielded or improperly grounded installations fail.

Thermal Compensation: The probe coil is wound with a conductor whose temperature coefficient of resistance is characterized and compensated within the driver’s analog circuitry. This compensation maintains the 7.87 V/mm scale factor within ±0.5% across the full –35°C to +177°C probe temperature range — a critical requirement for steam turbine applications where bearing housing temperatures can exceed 150°C during sustained operation.

Reverse-Mount Thread Geometry: The 10-32 UNF reverse-mount configuration allows the probe to be installed from the inside of the bearing housing bracket, with the locknut accessible from the outside. This geometry is standard in most OEM turbine designs and permits probe gap adjustment without removing the probe from the housing — a significant advantage during commissioning and periodic calibration checks.

System Integration Benefits

• Direct compatibility with 3500 series monitor racks: The 330104-16-23-10-02-00 is factory-calibrated as a matched system for Bently Nevada 3500/40M, 3500/42M, 3500/45, and 3500/46M monitor cards. No field calibration is required; the monitor card reads the probe’s scale factor from its internal calibration record, eliminating technician-introduced calibration error.
• Deterministic signal latency: The eddy-current measurement loop from shaft surface to monitor card output has a defined group delay of less than 100 µs at frequencies up to 1 kHz, ensuring that vibration events are captured and processed within the monitor’s alarm response time specification — typically 1 ms for danger-level trips.
• API 670 compliance for insurance and regulatory acceptance: Installations using 330104-series transducers with 3500-series monitors satisfy the API 670 standard’s requirements for radial vibration, axial position, and differential expansion measurement, which is a contractual requirement in most oil & gas EPC projects and a prerequisite for machinery insurance coverage in regulated facilities.
• Plug-and-play replacement without re-gapping: The 330104-16-23-10-02-00’s calibrated gap range (0.25–2.25 mm) is wide enough that a replacement probe installed to the same mechanical reference point will operate within the monitor’s configured alarm setpoints without requiring gap re-optimization — reducing planned maintenance downtime.
• Diagnostic transparency via OK relay output: When used with 3300 XL drivers, the system provides a hardware OK relay output that de-energizes if the probe gap falls outside the linear range or if the cable is open/shorted. This allows the DCS or safety PLC to distinguish between a genuine vibration trip and a transducer fault, preventing spurious shutdowns.
• Multi-plane measurement scalability: A single 3500 monitor rack can accept up to 16 proximity transducer channels. The 330104-16-23-10-02-00’s standardized signal interface allows incremental expansion of the monitoring system without changes to the rack wiring or monitor configuration.
• Compatibility with Bently Nevada System 1 software: The transducer’s output, when processed through 3500-series monitors, is fully compatible with Bently Nevada System 1 condition monitoring software for trend analysis, alarm management, and predictive maintenance reporting — providing a complete data path from physical measurement to enterprise asset management.
• Hazardous area certification for Zone 1 installations: ATEX certification (Zone 1, IIC T4) allows the 330104-16-23-10-02-00 to be installed in gas group IIC (hydrogen) hazardous areas without additional barriers, simplifying the installation design for offshore platforms and chemical plant applications.

Quality Assurance & Global Logistics

Every Bently Nevada 330104-16-23-10-02-00 unit supplied by siemensplc.com is sourced through verified supply channels and subjected to a structured pre-shipment inspection protocol. Each unit undergoes serial number authentication against manufacturer records, visual inspection of the probe tip, cable jacket, armor braid, and connector for mechanical damage or counterfeit indicators, and coil impedance measurement at 1 kHz to confirm the probe coil is within factory specification. Units are shipped in original or equivalent ESD-safe packaging with full documentation including the factory calibration certificate and material traceability records.

Logistics operations are based in Xiamen, China, a major international port city with direct air freight connections to all major global hubs. Standard shipments are dispatched via DHL Express, FedEx International Priority, or UPS Worldwide Expedited, with typical transit times of 3–5 business days to Europe, 2–4 business days to Southeast Asia, and 3–6 business days to North America. For time-critical plant shutdowns, same-day dispatch is available for in-stock items confirmed before 14:00 CST. All international shipments include commercial invoice, packing list, and certificate of origin. Export compliance documentation for ATEX-certified equipment is prepared in accordance with EU and destination-country import regulations.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
© 2026 siemensplc.com. All rights reserved.

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