Bently Nevada 330101-00-13-15-02-00 Proximity Probe – 3300 XL 8mm

Bently Nevada 330101-00-13-15-02-00: 8mm Eddy Current Proximity Probe for Rotating Machinery Protection

The 330101-00-13-15-02-00 is a factory-calibrated, 8mm-tip eddy current proximity probe manufactured by Bently Nevada (a Baker Hughes company) as part of the 3300 XL Series transducer system. It is engineered for continuous, non-contact measurement of radial shaft vibration, axial thrust position, and differential expansion in critical rotating machinery — turbines, compressors, pumps, and motors operating under API 670 machinery protection requirements.

Unlike general-purpose inductive sensors, this probe is factory-matched to the 3300 XL signal conditioning chain. Its scale factor of 7.87 V/mm (200 mV/mil) is calibrated against AISI 4140 steel targets and is traceable to the OEM driver calibration database. Substituting non-OEM probes in this system introduces scale factor deviation that accumulates as measurement error at the monitor level — a risk that procurement engineers in power generation and petrochemical facilities cannot accept.

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Technical Parameters

Hardware Logical Analysis

The operating principle of the 330101-00-13-15-02-00 is based on the Lenz’s Law eddy current effect. The probe tip houses a precision-wound coil driven by a high-frequency oscillator (typically 1.0 MHz carrier) embedded in the paired 3300 XL proximitor. When the conductive shaft surface enters the probe’s electromagnetic field, eddy currents are induced on the shaft surface. These currents create a counter-magnetic field that loads the oscillator circuit, reducing its amplitude in direct proportion to the gap distance between probe tip and shaft surface.

EMC Design Architecture: The probe body is constructed from 316L stainless steel with a PEEK (polyether ether ketone) tip housing. This material combination provides three simultaneous functions: mechanical rigidity under vibration, chemical resistance to process fluids and lubricants, and electromagnetic transparency at the operating frequency. The stainless steel armored cable braid acts as a Faraday shield, attenuating externally induced noise from adjacent motor drives, switchgear, and RF sources — a critical requirement in environments where VFD-driven equipment generates broadband EMI from 2 kHz to 150 kHz.

Calibration Traceability: Each 330101-00-13-15-02-00 probe is factory-calibrated as a matched set with the 3300 XL proximitor driver. The calibration establishes the exact oscillator loading curve for AISI 4140 steel across the full linear range. The resulting scale factor (7.87 V/mm) is stamped on the probe label and stored in the OEM calibration database. This traceability chain ensures that when the probe is installed in a 3500 Series monitor rack, the engineering unit conversion from raw voltage to displacement (µm or mil) requires no field adjustment — the monitor reads the correct physical gap directly.

Thermal Stability: The coil winding uses a temperature-compensated formulation that maintains scale factor accuracy within ±1% across the full −35°C to +177°C operating range. This is particularly relevant in steam turbine bearing housings where bearing metal temperatures can reach 120°C–150°C during normal operation, and probe tip temperatures track closely with the bearing housing surface.

Mechanical Mounting: The probe body is threaded (M10 × 1.0 mm pitch) for direct installation into standard Bently Nevada probe holders. The armored cable exits at 90° from the probe axis, reducing the installed footprint in confined bearing housing access ports. Lock nuts and probe holders are available separately to complete the installation assembly.

System Integration Benefits

• Direct OEM Scale Factor Match: The 7.87 V/mm scale factor is pre-loaded into 3300 XL and 3500 Series monitor configurations. No field recalibration is required on installation, eliminating a common source of commissioning error.
• Deterministic Frequency Response: The flat frequency response from DC to 10,000 Hz captures the full vibration spectrum — from slow-roll runout at 1× shaft speed to high-frequency blade-pass events — without phase distortion or amplitude roll-off within the measurement band.
• Dual-Function Measurement: A single probe installation can simultaneously provide radial vibration (AC component) and average shaft centerline position (DC component) to the monitor, reducing the number of penetrations required in the bearing housing.
• API 670 Compliance Path: The probe meets the transducer performance requirements of API Standard 670 (5th Edition), enabling its use in machinery protection systems for covered equipment (turbines, compressors, pumps) without additional qualification testing.
• Diagnostic Transparency: The DC gap voltage output provides a continuous, real-time indication of probe-to-shaft gap. Operators can monitor gap drift over time to detect probe fouling, shaft wear, or mounting looseness — failure modes that are invisible to vibration-only monitoring.
• Broad Target Material Compatibility: While calibrated for AISI 4140 steel, the probe can be used with other ferromagnetic and non-ferromagnetic conductive targets (Inconel, titanium, aluminum) by applying the appropriate target material correction factor documented in Bently Nevada Application Note AN-0021.
• Sealed Construction for Harsh Environments: IP67 rating and the armored cable construction allow installation in environments with oil mist, water spray, and process gas exposure — conditions typical of compressor seal areas and turbine bearing pedestals.
• Long-Term Stability: Non-contact measurement eliminates mechanical wear as a degradation mechanism. Under normal operating conditions with no physical contact between probe tip and shaft, the probe has an indefinite service life limited only by cable integrity and connector condition.

Quality Assurance & Global Logistics

Every unit of the 330101-00-13-15-02-00 supplied by siemensplc.com is sourced from authorized Bently Nevada distribution channels or verified OEM surplus stock. Each probe is traceable to Baker Hughes manufacturing records. Prior to shipment, our technical team performs a three-point inspection protocol: visual examination of the probe tip and cable armor for physical damage, connector pin integrity verification using a calibrated continuity tester, and coil impedance measurement to confirm the probe oscillator loading characteristic is within OEM specification.

Units are shipped from our warehouse in Xiamen, China — a major international logistics hub with direct access to DHL Express, FedEx International Priority, and UPS Worldwide Express services. Standard export documentation is prepared for every shipment: commercial invoice, packing list, certificate of origin, and — upon request — a certificate of conformance referencing the OEM part number and inspection results. Typical transit times are 3–5 business days to Europe and North America, and 2–4 business days to Southeast Asia and the Middle East.

All units are covered by a 12-month warranty against manufacturing defects from the date of shipment. Warranty claims are processed with a replacement unit dispatched within 5 business days of defect confirmation. Our engineering team provides post-sale technical support for installation, gap setting, and system integration questions at no additional charge.

Contact Information

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