Bently Nevada 330104-00-19-10-01-00 Proximity Transducer System – 3300 XL

Bently Nevada 330104-00-19-10-01-00 — Eddy-Current Proximity Transducer System for Rotating Machinery Protection

The Bently Nevada 330104-00-19-10-01-00 is a complete, factory-configured eddy-current proximity transducer system belonging to the 3300 XL Series. It is engineered for non-contact, continuous measurement of shaft radial vibration, axial position displacement, and differential thermal expansion in high-speed rotating machinery. The part number encodes a fully defined hardware configuration: 8 mm probe tip, 0.5 m (19 in) integral armored cable, 10 m extension cable, and a 3300 XL driver module — eliminating field assembly ambiguity and reducing spare-parts management overhead in multi-train installations.

Within a machinery protection control loop, this transducer system occupies the first and most critical measurement node. It converts mechanical shaft displacement into a proportional DC voltage signal (nominally −24 VDC bias, 200 mV/mil sensitivity) that is fed directly into Bently Nevada 3300 or 3500 Series monitor cards. The monitor card then applies alarm and danger setpoints, executes trip logic, and transmits process values to the plant DCS or safety instrumented system (SIS). The accuracy and bandwidth of this transducer system therefore determine the fidelity of every downstream protection decision — from early-warning vibration alerts to emergency machine trip.

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Technical Parameters

Hardware Logical Analysis

The 330104-00-19-10-01-00 operates on the principle of high-frequency electromagnetic induction. The driver module generates an oscillating carrier signal — typically in the range of 500 kHz to 2 MHz — which is transmitted through the coaxial cable to the probe coil. When a conductive target (shaft) enters the probe’s electromagnetic field, eddy currents are induced on the target surface. These eddy currents create a counter-magnetic field that loads the probe coil, reducing its impedance. The driver’s demodulation circuit converts this impedance change into a proportional DC output voltage with a scale factor of 7.87 V/mm.

EMC and Signal Integrity Design: The 3300 XL driver incorporates a differential signal architecture between the probe and driver, with the armored coaxial cable providing a continuous shield referenced to driver common. This construction attenuates capacitively coupled interference from adjacent power cables and motor drives — a critical requirement in turbine halls where variable-frequency drives (VFDs) and high-voltage bus bars generate broadband EMI in the 2–150 kHz range. The driver’s output stage presents a low-impedance source, making the signal robust against ground potential differences across long cable runs to remote monitor racks.

Thermal Stability: The probe coil is wound on a thermally stable ceramic bobbin and encapsulated in a high-temperature epoxy compound rated to +121 °C. This construction maintains scale factor drift below ±0.5% across the full probe operating temperature range — a specification that matters in steam turbine bearing housings where ambient temperatures routinely exceed 80 °C. The driver module’s internal temperature compensation circuit corrects for residual sensitivity drift caused by cable capacitance variation with temperature.

Mechanical Robustness: The probe body is machined from 316 stainless steel with a threaded mounting shank (M10 × 1.0 mm standard), providing corrosion resistance in wet-gas and hydrocarbon environments. The integral armored cable uses a stainless steel braid over the coaxial dielectric, protecting against mechanical abrasion in confined bearing housing installations. The extension cable connector is a sealed, locking coaxial type that maintains IP67 ingress protection when mated.

Intrinsic Safety Architecture: For Zone 0/1 and Division 1 installations, the system is certified for use with approved Zener barriers or galvanic isolators. The entity parameters (Ui, Ii, Pi, Ci, Li) are defined in the FM/CSA approval documentation, allowing engineers to perform entity concept calculations per IEC 60079-14 without requiring system-level certification of the complete loop.

System Integration Benefits

• Direct Monitor Card Compatibility: The 3300 XL driver output is electrically identical to the signal expected by Bently Nevada 3300/16, 3300/20, 3500/42, and 3500/45 monitor cards. No signal conditioning, scaling, or intermediate transmitter is required between the driver and the monitor input terminals, eliminating a potential failure point and reducing loop latency to under 1 ms.
• Deterministic Frequency Response: The flat frequency response from DC to 10,000 Hz ensures that all vibration components — from slow-roll runout at 1× shaft speed to high-frequency blade-pass events at 10× — are captured without amplitude attenuation or phase distortion, preserving the integrity of synchronous and asynchronous vibration analysis.
• API 670 Compliance Simplification: Because the 330104-00-19-10-01-00 is a pre-certified, fully decoded part number, it satisfies API 670 Section 5 transducer system requirements without requiring field calibration documentation. This accelerates FAT (Factory Acceptance Testing) and SAT (Site Acceptance Testing) sign-off on new machinery protection installations.
• Standardized Spare Parts Inventory: The fully specified part number — encoding probe size, cable lengths, and driver type — allows maintenance teams to stock a single SKU that covers all measurement points of the same configuration, reducing inventory carrying costs and eliminating cross-part substitution errors during emergency maintenance.
• Hazardous Area Deployment Without Re-engineering: FM and CSA intrinsic safety approvals are embedded in the product certification, allowing the transducer system to be deployed in Division 1 and Zone 1 classified areas using standard entity concept calculations, without requiring a new system-level hazardous area assessment for each installation.
• Diagnostic Transparency via Bias Voltage Monitoring: The driver’s −24 VDC bias output provides a continuous, passive diagnostic channel. A shift in bias voltage outside the nominal −10 VDC ± 1 VDC window at the monitor card input indicates probe gap error, cable open/short circuit, or driver failure — enabling condition-based maintenance decisions without removing the transducer from service.
• Non-Contact Measurement Eliminates Wear-Related Drift: Unlike contact-type displacement sensors (LVDTs, potentiometers), the eddy-current probe has no mechanical interface with the rotating shaft. There is no wear mechanism that degrades scale factor over time, making the 330104-00-19-10-01-00 suitable for continuous, unattended operation across multi-year maintenance intervals typical of baseload power generation and pipeline compression stations.
• Seamless Integration with Plant DCS and Historian: When connected to a 3500 Series monitor rack with a 3500/22M Communication Gateway, the transducer system’s measurement data is available on Modbus RTU/TCP, PROFIBUS DP, or OPC-DA/UA — enabling direct integration with Siemens PCS 7, Honeywell Experion, ABB 800xA, and other DCS platforms without additional signal conversion hardware.

Quality Assurance & Global Logistics

Every Bently Nevada 330104-00-19-10-01-00 unit dispatched from our Xiamen, China facility is sourced through verified industrial automation distribution channels and subjected to a structured pre-shipment inspection protocol:

• OEM part number label verification against Bently Nevada cosmetic and marking standards
• Serial number logging and cross-reference against known counterfeit serial ranges
• Coaxial cable continuity and insulation resistance measurement (≥100 MΩ at 500 VDC)
• Driver output bias voltage functional check at nominal −24 VDC supply
• Anti-static packaging with desiccant and humidity indicator card per JEDEC J-STD-033
• Certificate of Conformance (CoC) issued with each shipment; third-party inspection reports available on request

Shipments originate from Xiamen, China with full commercial invoice, packing list, and HS code documentation for customs clearance in all major import jurisdictions. Standard transit times: 3–5 business days to Southeast Asia; 5–8 business days to Europe and the Middle East; 7–10 business days to the Americas. DHL Express, FedEx International Priority, and UPS Worldwide Express are available for time-critical shutdown and turnaround requirements. All units are covered by a 12-month warranty from the date of shipment against manufacturing defects and functional failure under normal operating conditions.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
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