Bently Nevada 330101-00-45-10-12-CN – 3300 XL NSv Proximity Transducer System | 3300 XL Platform
Engineering Background: The Bently Nevada 3300 XL NSv (Non-Standard voltage) Proximity Transducer System is the evolution of the industry-defining 3300 XL eddy-current sensing platform. Designed to meet the rigorous demands of continuous machinery protection on rotating equipment, the 330101-00-45-10-12-CN configuration pairs a 25 mm (1-inch) probe with a 5-metre extension cable and a standard driver/oscillator, delivering a calibrated 4–20 mA output signal compatible with modern DCS and safety-instrumented systems.
Product Positioning: This part number is the preferred OEM-specified transducer for steam turbines, gas turbines, centrifugal compressors, and large induction motors where shaft radial vibration, axial position, and differential expansion must be measured to API 670 / ISO 10816 standards. It is a direct, plug-compatible replacement for legacy 3300 XL installations without recalibration of the monitoring rack.
Complete Technical Specifications
- Part Number: 330101-00-45-10-12-CN
- Series / Platform: Bently Nevada 3300 XL NSv
- Probe Diameter: 25 mm (1 inch)
- Probe Length: 45 mm overall
- Extension Cable Length: 5.0 m (standard)
- Driver/Oscillator: Included (integrated NSv driver)
- Output Signal: 4–20 mA (NSv linear output)
- Measurement Range: 0–2.54 mm (0–100 mil) radial gap
- Scale Factor: 7.87 V/mm (200 mV/mil) nominal
- Frequency Response: DC to 10 kHz (–3 dB)
- Operating Temperature: –35 °C to +121 °C (probe); –35 °C to +66 °C (driver)
- Supply Voltage: –24 VDC (nominal), –20 to –26 VDC range
- Current Consumption: ≤ 35 mA
- Target Material: AISI 4140 steel (standard); consult factory for non-ferrous targets
- Connector: MIL-C-5015 bayonet (probe end); flying leads (driver output)
- Ingress Protection: IP67 (probe and cable assembly)
- Approvals: CE, ATEX Zone 1 (Ex ia IIC T4), FM Intrinsically Safe
- Weight: 550 g (complete system)
- Country of Origin: USA
Proven Application Environments
- Steam Turbines (Power Generation): Shaft radial vibration and eccentricity monitoring on HP/IP/LP rotors; differential expansion measurement on turbine casings. Installed on GE, Siemens, and Mitsubishi frames worldwide.
- Gas Turbines (Oil & Gas / Power): Continuous rotor dynamic monitoring per API 670 on Frame 5–9 class machines. Replaces legacy 3300 XL probes without rack reconfiguration.
- Centrifugal Compressors: Axial position and radial vibration on multi-stage barrel and beam compressors in LNG trains, ethylene crackers, and ammonia synthesis loops.
- Large Induction & Synchronous Motors (>1 MW): Bearing journal orbit analysis and shaft centerline trending for predictive maintenance programs.
- Pumps & Fans (Critical Service): Boiler feed pumps, cooling water pumps, and ID/FD fans where unplanned downtime carries high process risk.
- Marine Propulsion: Shaft monitoring on diesel-electric and LNG-fuelled vessels operating in ATEX/IECEx hazardous zones.
Engineering Advantages
- NSv 4–20 mA Output: Eliminates the need for a separate I/V converter module; integrates directly into Yokogawa, Emerson DeltaV, Honeywell Experion, and ABB 800xA DCS analog input cards.
- API 670 5th Edition Compliant: Meets all performance requirements for machinery protection systems on critical rotating equipment without additional field calibration.
- Extended Temperature Probe: Rated to +121 °C continuous, suitable for hot-section installations near turbine bearing pedestals without thermal sleeves.
- Plug-Compatible Replacement: Identical mechanical envelope and connector to 330101 series predecessors; zero rack-side modifications required.
- Intrinsic Safety Certification: ATEX Ex ia IIC T4 and FM IS ratings allow installation in Zone 1 / Division 1 classified areas without additional barriers in most configurations.
- Long-Term OEM Support: Baker Hughes / Bently Nevada continues active production; spare parts and factory calibration services available globally.
System Architecture & Signal Flow
The 330101-00-45-10-12-CN operates as a three-component eddy-current system:
- Probe (330101 series, 25 mm): Generates a high-frequency electromagnetic field (1.0 MHz nominal). Eddy currents induced in the rotating shaft attenuate the field proportionally to the air gap distance.
- Extension Cable (5.0 m, matched impedance): Transmits the demodulated signal from probe tip to driver with <0.1% additional non-linearity. Cable length is factory-matched; field substitution requires recalibration.
- NSv Driver/Oscillator: Demodulates the RF signal, applies temperature compensation, and outputs a linear 4–20 mA current loop representing 0–2.54 mm gap. The driver also provides a buffered voltage output (–24 V bias + scale factor) for legacy monitor compatibility.
Signal is typically wired to a Bently Nevada 3500/40M or 3500/42M monitor card, or to a third-party vibration monitor accepting 4–20 mA proximity inputs.
Sourcing & Quality Verification
- All units sourced from authorised Bently Nevada / Baker Hughes distribution channels or verified OEM surplus with full traceability documentation.
- Each system ships with original factory calibration certificate and test report (frequency response, scale factor, linearity).
- Lot traceability maintained: date code, serial number, and factory test data retained on file for 10 years.
- Pre-shipment inspection includes: continuity check, insulation resistance (>100 MΩ @ 500 VDC), and gap-vs-output linearity verification against NIST-traceable standards.
- Packaging: anti-static foam insert, moisture-barrier bag with desiccant, rigid outer carton — compliant with IEC 60068-2 transport requirements.
Procurement Process
- Confirm Part Number: Verify 330101-00-45-10-12-CN matches your probe diameter (25 mm), cable length (5 m), and NSv output requirement. Cross-reference your existing Bently Nevada system drawing.
- Request Quote: Contact support@konmask.com or call +0086 19859288691 with your required quantity and delivery timeline.
- Lead Time: In-stock units ship within 3–5 business days (DHL Express / FedEx International Priority). ETA to most destinations: 5–10 business days.
- Documentation Package: Factory calibration certificate, material certificate (RoHS/REACH), and commercial invoice with HS code 9026.80 provided as standard.
- Payment Terms: T/T (wire transfer), PayPal, or LC at sight for orders above USD 5,000.
Technical FAQ
Q: Can I use a 330101-00-45-10-12-CN with my existing 3300 XL 8mm probe monitor card?
A: No. The 330101 series uses a 25 mm probe with a different oscillator frequency and scale factor. It is compatible with 3500/40M, 3500/42M, and 3300/16 monitor cards configured for 25 mm probes.
Q: Is the NSv output backward-compatible with standard –24 V Bently Nevada monitors?
A: The NSv driver provides both a 4–20 mA output and a buffered voltage output. The voltage output is compatible with standard 3500-series monitor cards. Confirm your monitor card firmware version supports NSv input mode.
Q: What is the maximum cable run from driver to DCS?
A: The 4–20 mA current loop supports cable runs up to 500 m (loop resistance ≤ 600 Ω). For longer runs, use a signal repeater or install the driver closer to the monitor.
Q: Can this probe be used on non-ferrous shafts (e.g., titanium, Inconel)?
A: Yes, but a target-material-specific calibration is required. Contact Bently Nevada factory or Konmask technical support for a custom calibration certificate.
Q: Do you offer exchange/repair services?
A: Yes. Konmask partners with certified Bently Nevada service centres for probe recalibration and driver repair. Contact us for RMA procedures and turnaround time.
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Contact: support@konmask.com | +0086 19859288691
