Bently Nevada 330104-00-13-05-01-CN – Eddy Current Proximity Transducer System | 3300 XL 8mm Series
Engineering Background: The Bently Nevada 3300 XL Series represents the industry benchmark for non-contact vibration and position measurement in rotating machinery protection systems. Engineered to API 670 standards, this platform has been deployed across refineries, power generation facilities, and petrochemical plants worldwide for over three decades. The 330104-00-13-05-01-CN is the Chinese-market variant of the 8mm proximity transducer system, fully compatible with the global 3300 XL ecosystem.
Product Positioning: This complete proximity transducer system — comprising the 330104 probe, extension cable, and Proximitor® sensor — delivers ±200 mV/mil (±7.87 mV/µm) output sensitivity for radial vibration, axial position, and differential expansion measurement on critical rotating assets. Specified by machinery protection engineers as the primary sensing element for turbines, compressors, pumps, and motors where continuous online monitoring is mandatory.
Complete Technical Specifications
- Part Number: 330104-00-13-05-01-CN
- Series: 3300 XL 8mm Proximity Transducer System
- Probe Tip Diameter: 8 mm
- Probe Cable Length: 5 m (standard)
- Extension Cable Length: 5 m
- Total System Range: 10 m (probe + extension)
- Linear Range: 0.25 mm to 2.25 mm (10 mil to 90 mil)
- Scale Factor: −200 mV/mil (−7.87 mV/µm) ±1%
- Frequency Response: DC to 10,000 Hz (−3 dB)
- Output Voltage Range: −1 VDC to −18 VDC
- Power Supply: −24 VDC (−20 VDC to −26 VDC)
- Operating Temperature: −35°C to +177°C (probe); −35°C to +85°C (Proximitor)
- Target Material: AISI 4140 steel (standard); consult factory for other alloys
- Connector Type: CN (Chinese standard connector)
- Ingress Protection: IP66 (Proximitor housing)
- Approvals: CE, ATEX, IECEx, FM, CSA (system-level)
- Weight: Approx. 230 g (probe + cable assembly)
Proven Application Environments
- Steam & Gas Turbines: Radial shaft vibration and axial thrust position monitoring on HP/LP turbine stages; direct replacement for legacy 3300 series installations
- Centrifugal Compressors: Continuous online vibration surveillance per API 670 on pipeline and process compressors; paired with 3500 rack for alarm/trip logic
- Boiler Feed Pumps & Cooling Water Pumps: Bearing housing vibration and shaft orbit measurement in power plant auxiliary systems
- Electric Motors (>500 kW): Non-contact shaft vibration on large induction and synchronous motors in steel mills and petrochemical drives
- Gearboxes: Differential expansion and eccentricity measurement on high-speed gear stages
- Expanders & Fans: Axial position monitoring on process expanders in LNG and refinery service
Engineering Advantages
- API 670 Compliant: Meets 5th Edition requirements for non-contact vibration transducer systems — accepted by EPC contractors and end-user machinery protection specifications globally
- Plug-and-Play Compatibility: Direct drop-in replacement for existing 3300 XL 8mm installations; no recalibration of the Proximitor required when replacing probe + cable as a matched system
- Extended Temperature Probe: Rated to +177°C probe tip — suitable for hot-section turbine bearing pedestals without additional thermal isolation
- CN Connector Variant: Localized connector standard reduces field wiring adaptation cost in Chinese industrial facilities
- Matched System Calibration: Probe, extension cable, and Proximitor are factory-calibrated as a system, ensuring scale factor accuracy within ±1% across the full linear range
- Robust EMI Immunity: Coaxial cable construction with double-shielding rejects VFD switching noise and high-frequency interference common in industrial environments
System Architecture & Signal Flow
The 330104-00-13-05-01-CN operates as a three-component eddy current system:
- 1. Probe (330104): 8mm tip generates a high-frequency electromagnetic field (1.0 MHz nominal). Gap changes between probe tip and conductive target modulate field impedance.
- 2. Extension Cable (330130-xx-xx): Low-loss coaxial cable transmits the modulated RF signal from probe to Proximitor with minimal attenuation. System cable length is fixed at 10 m total.
- 3. Proximitor® Sensor (330180 / 330181): Demodulates the RF signal and outputs a DC-proportional voltage (−200 mV/mil). Output feeds directly to 3500 Series monitor input cards or any compatible 4–20 mA converter.
Signal chain: Rotating shaft → Eddy current field → Probe impedance change → Coax transmission → Proximitor demodulation → DC voltage output → Monitor/DCS input
Sourcing & Quality Verification
- All units sourced from authorized Bently Nevada / Baker Hughes distribution channels or verified surplus with full traceability documentation
- Each system inspected for: connector integrity, cable continuity, probe tip condition, and Proximitor output verification against reference target
- Serialization and date codes recorded; certificates of conformance available on request
- No counterfeit risk: units rejected if markings, PCB layout, or output characteristics deviate from OEM specification
- Shelf-life managed: units stored in ESD-safe, climate-controlled environment per Bently Nevada storage guidelines
Procurement Process
- Step 1: Confirm your existing system cable length and Proximitor model to ensure matched-system compatibility
- Step 2: Submit RFQ via support@konmask.com with quantity, delivery location, and required documentation (CoC, test report)
- Step 3: Receive quotation within 24 hours with lead time, pricing, and shipping options (DHL Express / sea freight)
- Step 4: Payment via T/T, L/C, or platform escrow; export documentation (commercial invoice, packing list, CO) provided
- Step 5: Units shipped with full inspection report; tracking provided within 24 hours of dispatch
Technical FAQ
- Q: Can I use the 330104-00-13-05-01-CN probe with a different Proximitor model?
- A: The probe must be used as part of a matched 3300 XL system (probe + extension cable + Proximitor calibrated together). Mixing components from different systems will introduce scale factor errors. Always replace as a complete matched set.
- Q: What is the difference between the -01-CN and -00 suffix variants?
- A: The -01 suffix denotes the standard armored cable jacket version. The -CN suffix specifies the Chinese-standard connector. Electrically and mechanically identical to the global variant; only the field connector differs.
- Q: Is this system compatible with the Bently Nevada 3500 Series monitoring rack?
- A: Yes. The −200 mV/mil output is the standard input signal for 3500/40M, 3500/42M, and 3500/45 monitor cards. No signal conditioning adapter is required.
- Q: What target material is required for accurate measurement?
- A: AISI 4140 steel is the calibration standard. For other alloys (stainless steel, titanium, Inconel), a material correction factor must be applied. Contact our engineering team for alloy-specific scale factor data.
- Q: Can this transducer be used in hazardous area (Ex) installations?
- A: Yes, when installed as part of an approved intrinsically safe or explosion-proof system per the applicable ATEX/IECEx/FM certificate. Verify the complete system approval documentation before installation in Zone 1/2 or Division 1/2 areas.
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