Bently Nevada 330104-00-17-10-01-00 Proximity Transducer – 3300 XL Series

Bently Nevada 330104-00-17-10-01-00: Eddy-Current Proximity Transducer for Critical Rotating Machinery Monitoring

The Bently Nevada 330104-00-17-10-01-00 is a factory-calibrated, non-contacting eddy-current proximity transducer belonging to the 3300 XL Series — a platform that has accumulated decades of field deployment across power generation, oil & gas, petrochemical, and heavy industrial sectors. This specific variant ships with a 5-metre integral coaxial cable, threaded M10×1 probe body, and an 8 mm active tip diameter, forming the sensing element of a three-component proximity transducer system that also requires a matched extension cable (330130 series) and an oscillator-demodulator driver (330180 or equivalent).

Unlike contact-based displacement sensors, the eddy-current operating principle imposes zero mechanical load on the monitored shaft. The probe generates a high-frequency electromagnetic field (typically 1 MHz carrier); when a conductive target enters the field, induced eddy currents alter the coil impedance. The driver converts this impedance shift into a DC voltage output with a nominal scale factor of 7.87 V/mm (200 mV/mil), linear across a measurement gap range of 0.25 mm to 2.25 mm. This linearity, combined with a flat frequency response from DC to 10,000 Hz, makes the 330104-00-17-10-01-00 equally suited to static position measurement and high-frequency vibration analysis up to the 10th harmonic of a 1,000 RPM machine.

The transducer complies with API 670 — the industry standard governing machinery protection instrumentation — and is fully interoperable with Bently Nevada 3500 series rack monitors, 3300 series monitors, and Emerson System 1 condition monitoring software. Procurement teams and reliability engineers sourcing this part from Xiamen, China can expect genuine, traceable stock with 12-month warranty coverage and same-week dispatch on confirmed orders.

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

Technical Parameters

Hardware Logical Analysis

The 330104-00-17-10-01-00 probe coil is wound on a ferrite core and encapsulated in a chemically resistant housing rated for continuous immersion in light hydrocarbon atmospheres. The coil geometry is optimised for an 8 mm active sensing diameter, which constrains the electromagnetic field to a depth of approximately 3 mm into the target surface — sufficient to interrogate the near-surface conductivity of AISI 4140 steel without coupling to adjacent metallic structures.

EMC Design: The integral coaxial cable uses a double-shielded construction (inner braid + outer foil) with drain wire continuity to the driver chassis ground. This architecture attenuates common-mode interference from variable-frequency drives and high-current bus bars — sources of broadband EMI that are endemic in motor control centres and turbine halls. The shield termination at the driver end is single-point, preventing ground-loop currents that would otherwise appear as low-frequency noise on the DC output.

Thermal Stability: The probe body is manufactured from 316L stainless steel with a coefficient of thermal expansion (CTE) matched to the coil former material. Over the operating range of −35 °C to +121 °C, the scale factor drift is specified at less than ±0.5% of full scale — a figure that eliminates the need for temperature compensation in most turbine bearing housings where ambient temperatures stabilise within ±20 °C of the rated operating point.

Cable Impedance Matching: The 5 m integral cable (suffix -17) is factory-matched to the 330180 driver’s input impedance network. The driver’s oscillator circuit is pre-tuned for the combined probe-plus-cable capacitance of this specific length. Substituting a different cable length without driver recalibration shifts the resonant frequency of the LC tank circuit, compressing the linear range and introducing a systematic offset error that cannot be corrected by zero adjustment alone.

Redundancy Architecture Compatibility: In dual-voting (2oo2) or triple-redundant (2oo3) machinery protection configurations, each 330104 probe feeds an independent channel on the 3500 monitor rack. The probe’s low output impedance (typically <50 Ω at the driver output) ensures that channel-to-channel crosstalk remains below the noise floor of the monitor’s A/D converter, preserving the statistical independence required for SIL 2 safety function validation under IEC 61511.

System Integration Benefits

• Zero-contact measurement eliminates bearing load contribution: The eddy-current principle imposes no axial or radial force on the monitored shaft, ensuring that the sensor itself does not alter the dynamic behaviour it is measuring — a critical requirement in high-speed turbomachinery where added mass or stiffness at the measurement point would shift critical speed calculations.
• DC-coupled output enables static position monitoring: The flat frequency response from DC allows simultaneous measurement of slow-roll eccentricity (sub-1 Hz) and high-frequency vibration within a single channel, removing the need for separate position and vibration transducers on the same bearing journal.
• API 670 compliance simplifies SIL validation: Machinery protection systems built around API 670-compliant transducers carry pre-validated failure mode data, reducing the FMEDA effort required to demonstrate SIL 2 capability for overspeed or high-vibration shutdown functions.
• Plug-and-play with 3500 rack I/O modules: The 330104 series is the native input transducer for Bently Nevada 3500/42M and 3500/45 position monitor cards. No signal conditioning adapters are required; the monitor card reads the −1 V to −17 V output directly and applies the stored scale factor for engineering-unit conversion.
• System 1 software integration: When connected through the 3500 rack, the transducer’s channel data is automatically tagged with probe serial number, cable length, and calibration date — metadata that populates the System 1 asset hierarchy and supports automated alarm setpoint calculation based on ISO 10816 or API 670 severity zones.
• Keyphasor phase reference capability: A single 330104 probe mounted over a shaft notch or keyway provides the once-per-revolution phase reference required for synchronous vibration analysis, balancing, and order tracking — functions that are otherwise unavailable from accelerometer-based systems without a separate tachometer.
• Wide temperature range reduces installation constraints: The probe’s −35 °C to +121 °C rating covers the full bearing housing temperature envelope of most steam and gas turbines without requiring thermal standoffs or cooling air purges, simplifying bracket design and reducing installation labour.
• Diagnostic transparency through gap voltage monitoring: The raw DC gap voltage is accessible at the driver output and on the 3500 monitor front panel. Trending this value over time provides a direct, quantitative indicator of shaft centreline migration, bearing wear, and thermal growth — data that supports condition-based maintenance decisions without additional instrumentation.

Quality Assurance & Global Logistics

Every 330104-00-17-10-01-00 unit dispatched from our Xiamen, China facility is sourced through verified industrial supply channels with full manufacturer traceability. Prior to shipment, each probe undergoes a multi-point inspection protocol covering physical housing integrity, coaxial connector continuity, cable insulation resistance (>100 MΩ at 500 VDC), and coil impedance verification against the factory acceptance test record.

Original manufacturer packaging is preserved wherever available, and a Certificate of Conformance (CoC) is issued with every order. For projects requiring third-party inspection or material test reports (MTR), these can be arranged at the quotation stage.

Logistics: In-stock units ship within 3–5 business days via DHL Express, FedEx International Priority, or UPS Worldwide Expedited — carrier selection based on destination and urgency. Export classification is reviewed for each shipment; ECCN and HS code documentation is provided as standard for customs clearance. Typical transit times: Southeast Asia 2–3 days; Europe 3–5 days; North America 4–6 days. For time-critical shutdowns or turnaround projects, same-day dispatch is available on confirmed orders received before 14:00 CST.

A 12-month warranty covers manufacturing defects under normal operating conditions. Warranty claims are processed with replacement dispatch within 5 business days of fault confirmation, minimising plant downtime exposure.

Contact Information

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