Bently Nevada 330104-00-06-50-12-05 — 3300 XL 8mm Proximity Probe | Bently Nevada 3300 XL Platform
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for non-contacting eddy-current proximity measurement in rotating machinery protection systems. Designed to meet API 670 requirements, the 3300 XL 8mm probe system delivers exceptional linearity and thermal stability across demanding industrial environments — from gas turbines and steam turbines to centrifugal compressors and large electric motors.
Product Positioning
The 330104-00-06-50-12-05 is a complete 8mm proximity probe assembly configured with a 6-inch (0.5 ft) integral cable, 50-ohm coaxial termination, and standard -24 VDC bias voltage output. It is the preferred choice for OEM integrators and plant maintenance engineers requiring a drop-in replacement or new installation within existing Bently Nevada 3300 XL monitor racks.
Complete Technical Specifications
| Part Number | 330104-00-06-50-12-05 |
| Series / Platform | Bently Nevada 3300 XL |
| Probe Tip Diameter | 8 mm |
| Integral Cable Length | 6 inches (0.5 ft / ~152 mm) |
| Coaxial Impedance | 50 Ω |
| Connector Type | Standard BNC / TNC (per system config) |
| Sensitivity | 200 mV/mil (7.87 V/mm) |
| Bias Voltage Output | -24 VDC (nominal) |
| Linear Range | 10–90 mil (0.25–2.29 mm) |
| Operating Temperature | -35°C to +121°C (-31°F to +250°F) |
| Target Material | AISI 4140 steel (standard); other alloys with calibration |
| Frequency Response | DC to 10,000 Hz (–3 dB) |
| Supply Voltage | -24 VDC (via proximitor/extension cable) |
| Approvals | API 670 compliant; CE; ATEX / IECEx (system-level) |
| Weight | Approx. 200 g (probe + cable assembly) |
| Country of Origin | USA (Baker Hughes / Bently Nevada) |
Proven Application Environments
- Gas Turbines & Steam Turbines — Shaft radial vibration and axial position monitoring per API 670
- Centrifugal Compressors — Continuous rotor orbit and eccentricity measurement
- Large Electric Motors (>1 MW) — Bearing journal displacement monitoring
- Pumps & Gearboxes — High-speed shaft runout and differential expansion
- Petrochemical & Refinery Plants — SIL-rated machinery protection loops
- Power Generation — OEM turbine protection panels and DCS integration
Engineering Advantages
- API 670 Compliant — Meets the most stringent machinery protection standard for critical rotating equipment
- High Linearity — ±1% linearity over full measurement range ensures accurate vibration amplitude data
- Wide Thermal Stability — Calibrated performance from -35°C to +121°C without field recalibration
- Direct System Compatibility — Plug-and-play replacement within existing 3300 XL monitor racks (3300/16, 3300/20, 3500 series)
- Eddy-Current Non-Contact Design — Zero mechanical wear; suitable for continuous 24/7 operation
- EMI/RFI Shielded Cable — 50 Ω coaxial construction minimizes signal noise in high-interference plant environments
System Architecture & Signal Flow
The 330104-00-06-50-12-05 operates as part of a three-component eddy-current measurement chain:
- Proximity Probe (330104-00-06-50-12-05) — Generates the high-frequency electromagnetic field and senses target gap changes
- Extension Cable (330130 Series) — Transmits the raw oscillator signal from probe to proximitor; total cable system must equal 5 meters or 9 meters for calibrated sensitivity
- Proximitor / Oscillator-Demodulator (3300 XL 8mm, e.g., 330180) — Converts the frequency-modulated signal to a DC voltage output (200 mV/mil) for monitor input
Note: The probe integral cable length (6 inches) must be accounted for when selecting the extension cable to achieve the correct total system cable length.
Sourcing & Quality Verification
- All units sourced from authorized distributors or verified surplus channels with full traceability documentation
- Each probe inspected for physical integrity: tip condition, cable jacket, connector termination, and label legibility
- Functional verification available upon request: bias voltage output and sensitivity check against calibrated target
- Original Baker Hughes / Bently Nevada packaging and documentation preserved where available
- Counterfeit-risk screening applied — no grey-market or unverified-origin units shipped
Procurement Process
- Confirm Compatibility — Verify your existing proximitor model (330180 or equivalent) and total cable system length requirement (5 m or 9 m)
- Request Quote — Contact [email protected] for volume pricing, lead time, and availability confirmation
- Place Order — Secure checkout via Konmask.com; wire transfer and PayPal accepted for B2B orders
- Shipping — DHL / FedEx international express; export documentation (commercial invoice, packing list, COO) provided
- After-Sales Support — Technical assistance available for installation, commissioning, and system integration queries
Technical FAQ
Q: Can the 330104-00-06-50-12-05 be used with a 3500 Series monitor rack?
A: Yes. The 3300 XL 8mm probe system is fully compatible with Bently Nevada 3500 Series monitors when paired with the correct 3300 XL proximitor (e.g., 330180-X0-05).
Q: What is the significance of the “-06” in the part number?
A: The “-06” designates the integral cable length — 6 inches (0.5 ft). This is the shortest standard cable option and is typically used in tight-clearance installations where the extension cable connects immediately at the probe.
Q: What target material is this probe calibrated for?
A: Standard calibration is for AISI 4140 steel. For other target materials (e.g., Inconel, titanium, stainless steel), a material correction factor or custom calibration is required.
Q: Is the probe ATEX certified for use in hazardous areas?
A: ATEX/IECEx certification is applied at the system level (probe + extension cable + proximitor). Confirm the complete system certification with your Bently Nevada documentation before installation in Zone 1/2 areas.
Q: Do you provide a certificate of conformance (CoC)?
A: Yes. A CoC is available upon request for all orders. Functional test reports can also be provided for critical applications.
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