Bently Nevada 330180-X1-05 MOD-145347-05 Proximitor Sensor – 3300 XL Series

Bently Nevada 330180-X1-05 MOD:145347-05 — Eddy-Current Proximitor Sensor for Critical Rotating Machinery Protection

In turbomachinery protection architectures, the Proximitor sensor occupies the most upstream position in the signal chain: it converts mechanical shaft displacement into a calibrated DC voltage that downstream monitors interpret as vibration amplitude, axial position, or differential expansion. Any degradation in sensor linearity, gap sensitivity, or output impedance propagates directly into false alarms, missed trip thresholds, or — in the worst case — undetected rotor excursions that precede catastrophic bearing failure. The Bently Nevada 330180-X1-05 MOD:145347-05 is a factory-configured eddy-current Proximitor sensor within the 3300 XL Series, engineered to deliver sub-micron displacement resolution across the full operating envelope of gas turbines, steam turbines, centrifugal compressors, and high-speed pumps.

The 330180 base part number designates the standard 8 mm eddy-current probe body with a 5 mm linear measurement range, operating on the 3300 XL driver/sensor system’s -24 VDC supply rail. The X1-05 suffix specifies the extension cable assembly — a 5-meter armored coaxial cable with defined characteristic impedance matched to the Proximitor driver’s oscillator circuit. The MOD:145347-05 factory modification record documents a specific connector termination and cable routing configuration required for targeted OEM installation points, ensuring dimensional and electrical interchangeability with the original equipment specification without field re-calibration.

The 3300 XL platform’s scale factor is nominally 7.87 V/mm (200 mV/mil), with a linear range of 0.25 mm to 2.54 mm (10 to 100 mil) gap. This scale factor is maintained within ±1% across the operating temperature range, a specification that directly determines the accuracy of API 670-compliant vibration alarm and trip setpoints. For a machine with a 125 µm (5 mil) peak-to-peak vibration alarm threshold, a 1% scale factor error translates to a 1.25 µm measurement uncertainty — well within the margin required for reliable machinery protection.

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

Technical Parameters

Hardware Logical Analysis

The 330180-X1-05 MOD:145347-05 operates on the eddy-current induction principle: the probe tip contains a wound coil driven by a high-frequency oscillator (nominally 1.0 MHz) embedded in the paired Proximitor driver module. When the probe tip approaches a conductive target surface, eddy currents are induced in the target material, loading the oscillator circuit and reducing the coil’s Q-factor. The driver’s demodulation circuit converts this impedance change into a linear DC output voltage. The critical design parameter is the coil-to-cable impedance matching: the 5-meter X1-05 extension cable introduces a defined distributed capacitance and inductance that the driver’s oscillator is pre-compensated for. Substituting a non-matched cable length without recalibration will shift the scale factor and zero-gap voltage, invalidating all alarm and trip setpoints.

The MOD:145347-05 modification record addresses a specific connector termination geometry. In high-vibration installations — such as gas turbine bearing housings where broadband vibration levels can exceed 50 g — connector fretting and intermittent contact are a primary failure mode for proximity measurement systems. The MOD variant’s connector design incorporates a locking retention mechanism and a defined cable strain-relief geometry that reduces connector-body relative motion under dynamic loading, extending mean time between failures (MTBF) in high-vibration environments.

From an EMC perspective, the armored coaxial cable construction provides a continuous shield from probe body to driver input, with shield termination at the driver end only (single-point grounding). This topology suppresses common-mode noise pickup from adjacent power cables, variable-frequency drives, and high-current bus bars — all of which are present in typical turbomachinery control room environments. The shield’s transfer impedance specification ensures that induced noise voltages remain below the equivalent of 2.5 µm displacement at the sensor output, preserving measurement integrity in electrically noisy plant environments.

The probe body’s stainless steel housing provides mechanical protection against process fluid ingress and chemical attack. The ceramic-filled epoxy tip encapsulant maintains dimensional stability across the operating temperature range, preventing thermal expansion of the tip geometry from shifting the effective gap measurement. For installations near steam turbine bearing pedestals where tip temperatures can approach 150°C, this thermal stability is a non-negotiable design requirement.

System Integration Benefits

• Direct API 670 compliance path: The 3300 XL system’s documented scale factor and linearity specifications provide the calibration traceability required for API 670 (5th Edition) machinery protection system certification, eliminating the need for field-level scale factor verification during commissioning.
• Zero-configuration replacement: The MOD:145347-05 designation ensures dimensional, electrical, and connector interchangeability with the original OEM-specified sensor, allowing hot-swap replacement during planned maintenance windows without re-routing cables or modifying monitor configuration.
• Deterministic signal latency: The eddy-current measurement principle provides a continuous analog output with no sampling latency, ensuring that the monitor’s trip relay response time is governed solely by the monitor’s hardware filter settings — not by sensor digitization delay.
• Multi-parameter measurement from a single probe: Depending on monitor configuration, a single 330180-series probe can simultaneously provide radial vibration (AC component), average shaft centerline position (DC component), and slow-roll runout compensation data to the System 1 software platform.
• System 1 software integration: The 3300 XL sensor’s output is natively compatible with Bently Nevada System 1 condition monitoring software, enabling trend logging, spectral analysis, and orbit plot generation without signal conditioning adapters.
• Redundant monitoring architecture support: The sensor’s single-ended output can be paralleled to multiple monitor inputs (with appropriate input impedance consideration), supporting 1oo2 or 2oo3 voting logic architectures required in SIL-rated machinery protection applications.
• Diagnostic transparency: The -24 VDC supply rail and defined output voltage range allow monitor-level open-circuit and short-circuit detection, providing a hardware-level sensor health diagnostic that is logged in the monitor’s event history without requiring additional field instrumentation.
• Broad target material database: Bently Nevada publishes calibration correction factors for over 40 common shaft alloys, allowing the 330180 probe to be recalibrated for non-standard target materials (e.g., titanium, Inconel) without hardware modification, extending applicability across diverse turbomachinery designs.

Quality Assurance & Global Logistics

Every Bently Nevada 330180-X1-05 MOD:145347-05 unit supplied by siemensplc.com is sourced through verified industrial supply channels and subjected to a structured pre-shipment inspection protocol. Physical part number verification is performed against the factory label and MOD record documentation. Connector integrity, cable sheath continuity, and probe tip condition are assessed visually and dimensionally. Where test equipment is available, the probe coil’s DC resistance is measured and compared against the published specification to screen for winding damage or moisture ingress.

Units are packaged in anti-static, moisture-barrier packaging with foam cushioning sized to the probe body and cable assembly geometry. For international shipments, packaging is rated for the vibration and shock levels specified in ISTA 2A transit testing. Commercial documentation — including commercial invoice, packing list, and certificate of origin — is prepared as standard for all export orders, supporting customs clearance in all major import jurisdictions.

Shipments originate from our warehouse in Xiamen, China, with access to DHL Express, FedEx International Priority, and UPS Worldwide Express services. Typical transit times to major industrial hubs: Europe 3–5 business days, North America 3–5 business days, Southeast Asia 2–3 business days, Middle East 4–6 business days. Urgent orders with same-day dispatch are accommodated for in-stock items confirmed before 14:00 CST. All shipments include full tracking and are covered by carrier insurance for declared value.

A 12-month warranty applies from the date of shipment, covering manufacturing defects and premature failure under normal operating conditions. Warranty claims are processed with a replacement-first policy to minimize plant downtime.

Contact Information

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

{
“@context”: “https://schema.org”,
“@graph”: [
{
“@type”: “Product”,
“name”: “Bently Nevada 330180-X1-05 MOD:145347-05 Proximitor Sensor 3300 XL”,
“description”: “Genuine Bently Nevada 330180-X1-05 MOD:145347-05 eddy-current Proximitor sensor, 3300 XL Series. 7.87 V/mm scale factor, 5 m extension cable, API 670 compatible. In stock at siemensplc.com, Xiamen, China.”,
“sku”: “330180-X1-05 MOD:145347-05”,
“mpn”: “330180-X1-05”,
“brand”: {
“@type”: “Brand”,
“name”: “Bently Nevada”
},
“manufacturer”: {
“@type”: “Organization”,
“name”: “Bently Nevada (Baker Hughes)”
},
“category”: “Proximitor Sensor / Vibration Monitoring”,
“url”: “https://siemensplc.com/products/bently-nevada-330180-x1-05-mod-145347-05”,
“offers”: {
“@type”: “Offer”,
“priceCurrency”: “USD”,
“availability”: “https://schema.org/InStock”,
“seller”: {
“@type”: “Organization”,
“name”: “siemensplc.com”,
“url”: “https://siemensplc.com”
}
}
}
]
}