Bently Nevada 330103-00-09-10-02-00 Proximity Probe – 3300 XL Series

Bently Nevada 330103-00-09-10-02-00 — 8 mm Eddy-Current Proximity Probe in Industrial Vibration Measurement Loops

The Bently Nevada 330103-00-09-10-02-00 is an 8 mm, 10-foot-cable eddy-current proximity probe engineered for continuous, non-contact displacement and vibration measurement of rotating machinery shafts. Operating within the Bently Nevada 3300 XL and 3500 series monitoring ecosystems, this probe forms the primary sensing element of a three-component measurement chain — probe, extension cable (330130 series), and proximitor/oscillator driver (330180 series). Its role in the control loop is deterministic: it converts mechanical shaft displacement into a calibrated DC voltage signal at 200 mV/mil (7.87 V/mm) sensitivity, feeding real-time data to the monitor rack for alarm, trip, and trending functions. Without accurate probe output, the entire machinery protection architecture loses its primary input variable.

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

Technical Parameters

Hardware Logical Analysis

The 330103-00-09-10-02-00 operates on the eddy-current (electromagnetic induction) principle. The probe tip houses a wound coil energized by a high-frequency oscillator signal — typically 1.0 MHz — supplied by the paired 330180 series proximitor. When the conductive target (shaft) enters the probe electromagnetic field, eddy currents are induced on the shaft surface, loading the oscillator circuit and reducing its output amplitude. This amplitude change is demodulated and linearized by the proximitor into a DC voltage proportional to the gap distance between probe tip and shaft surface.

• Coil encapsulation: The sensing coil is encapsulated in a thermally stable, chemically resistant polymer body, preventing coil geometry drift under thermal cycling and eliminating sensitivity error at elevated machine temperatures.
• Cable impedance matching: The 10-foot integral cable is impedance-matched to the 330180 proximitor input. Substituting arbitrary cable lengths without recalibration introduces phase and amplitude errors in the measurement loop.
• EMC shielding architecture: Coaxial cable construction provides continuous shield coverage from probe body to connector, attenuating radially coupled electromagnetic interference from adjacent motor drives, bus bars, and RF sources. The shield is grounded at the proximitor end only, preventing ground-loop-induced noise.
• Target material calibration: Factory calibration is performed against AISI 4140 steel. For stainless steel (316L) or titanium shafts, a material correction factor must be applied — typically ±5–15% sensitivity shift depending on alloy conductivity and permeability.
• Thermal dimensional stability: The probe body maintains dimensional stability across −35 °C to +120 °C, ensuring mechanical gap changes due to probe body thermal expansion remain below the system measurement noise floor.
• IP67 dual O-ring sealing: Sealing at the probe-to-cable junction and cable-to-connector interface prevents ingress of process fluids, steam condensate, and lubricating oil common in turbine bearing housings and compressor seal areas.

System Integration Benefits

• 1. Deterministic signal latency: No mechanical contact eliminates stick-slip and hysteresis artifacts. Signal propagation from shaft displacement to monitor input is bounded by the proximitor demodulator bandwidth (>10 kHz), supporting accurate capture of sub-synchronous and super-synchronous vibration components.
• 2. Direct API 670 compliance: Meets API 670 (5th edition) requirements for machinery protection instrumentation, simplifying documentation for new installations and insurance audits in oil & gas and power generation facilities.
• 3. Plug-compatible with 3300 XL and 3500 racks: No firmware changes or channel reconfiguration required when replacing a failed probe of the same part number. The monitor retains existing alarm and trip setpoints, minimizing downtime during maintenance windows.
• 4. Keyphasor and phase reference capability: When installed at a shaft notch or keyway, generates a once-per-revolution trigger pulse used by the monitor for synchronous averaging, order tracking, and phase angle measurement — essential for balancing and resonance analysis.
• 5. Differential expansion monitoring: In steam turbine applications, paired probes on rotor and casing measure differential thermal expansion during startup and shutdown transients, providing early warning of rub conditions before contact occurs.
• 6. Eccentricity measurement at slow roll: Below the first critical speed, the probe measures shaft bow (eccentricity) during slow-roll startup. Excessive eccentricity triggers a hold condition, preventing thermal bow damage to turbine blades and seals.
• 7. Diagnostic transparency via gap voltage monitoring: The DC gap voltage output is continuously monitored by the 3500 rack. A gap voltage outside −10 to −18 VDC triggers a Not OK status, alerting maintenance personnel to probe misalignment, target surface damage, or cable fault without requiring a process shutdown for initial diagnosis.
• 8. Multi-channel scalability: A single 3500 rack accepts up to 16 transducer input channels. Multiple 330103-00-09-10-02-00 probes can be deployed across radial X/Y pairs on multiple bearing pedestals, providing full rotor dynamic coverage within a single monitor chassis and reducing panel space requirements.
• 9. Historian and DCS integration: The analog output from the proximitor is compatible with DCS analog input cards and historian systems (OSIsoft PI, Aspentech IP.21), enabling long-term vibration trend storage and alarm correlation with process variables such as load, speed, and bearing temperature.

Quality Assurance & Global Logistics

Every 330103-00-09-10-02-00 unit dispatched from our Xiamen, China facility is sourced from Bently Nevada (Baker Hughes) authorized distribution channels or verified OEM surplus with full supply chain traceability. Pre-shipment inspection covers physical integrity of the probe body, cable jacket condition, connector pin alignment, and cable continuity verification. Original manufacturer labels, date codes, and calibration markings are preserved intact on all units.

A 12-month warranty against manufacturing defects is provided on all units. Certificates of conformance are available upon request for ISO 9001 and API Q1 quality management documentation.

Logistics from Xiamen port: DHL Express to Europe and North America typically 3–5 business days; sea freight consolidation available for bulk orders. Export documentation including commercial invoice, packing list, and HS code 9031.80 classification is prepared for all international shipments. Customers in Southeast Asia, the Middle East, and South America are served through established freight forwarding partnerships with average air transit times of 5–10 business days. For urgent plant maintenance requirements, same-day dispatch is available for in-stock units when orders are confirmed before 14:00 CST.

Contact Information

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