Description
The Bently Nevada 330104-00-04-10-11-01 is a high-reliability, non-contacting eddy current sensor designated as a 3300 XL 8 mm Proximity Probe. It forms a primary core component of the 3300 XL 8 mm Proximity Transducer System, generating an output voltage directly proportional to the static or dynamic distance between the probe tip and any observed conductive target surface. Operating on fluid-film bearing machinery, this sensor provides detailed radial vibration, axial thrust position, phase reference Keyphasor tracking, and industrial shaft speed measurements. The system provides complete unit-to-unit interchangeability across probes, extension cables, and Proximitor sensors without bench calibration or matching errors. Designed with advanced structural integrity, the probe employs a patented TipLoc molding method for a reinforced tip-to-body bond, alongside a CableLoc attachment mechanism capable of resisting continuous pull forces up to 330 N (75 lbf).
Features
Complete Component Interchangeability: Supports full physical and electrical matching with standard system parts, eliminating dedicated field recalibration routines.
Gold-Plated ClickLoc Architecture: Features positive-locking, corrosion-resistant coaxial connectors that click together mechanically using finger-tight force to protect against vibration loosening.
Thick Tip Encapsulation: Utilizes molded polyphenylene sulfide (PPS) plastic across an 8 mm tip diameter, providing impact protection and high case robustness inside harsh machinery interiors.
API 670 Compliance: Fully matches the technical, structural, linear accuracy, and mechanical stability parameters mandated under the American Petroleum Institute 670 standard.
Backward System Compatibility: Integrates directly with non-XL legacy Bently Nevada 3300 series 5 mm and 8 mm components, reverting performance bounds to legacy system limits.
Applications
Radial vibration tracking and shaft centerline positioning on fluid-film bearing equipment.
Axial thrust displacement and thermal expansion monitoring on high-speed industrial turbines.
Keyphasor phase-reference alignment and machine synchronization timing.
Tachometer overspeed detection and zero-speed shaft monitoring loops.
Ordering Information
| Selection Parameter Code |
Technical Parameter Meaning |
| 330104 |
3300 XL 8 mm Proximity Probe, 3/8-24 UNF thread, without armor |
| 00 |
Unthreaded Length: 0 mm (0.0 in) |
| 04 |
Overall Case Length: 40 mm (1.6 in) |
| 10 |
Total Length: 1.0 meter (3.3 feet) |
| 11 |
Connector and Cable Type: Miniature coaxial ClickLoc connector, FluidLoc cable |
| 01 |
Agency Approval Option: ATEX, IECEx, CSA intrinsically safe and non-incendive certifications |
Technical Specifications
| Specification Parameter |
Technical Functional Data |
| Manufacturer |
Bently Nevada |
| Full Part Identifier |
330104-00-04-10-11-01 |
| Probe Diameter |
8 mm |
| Thread Profile |
3/8-24 UNF-2A thread standard |
| Cable Subtype |
FluidLoc cable (prevents process fluid leaking out through cable interior) |
| Linear Range |
2 mm (80 mils), extending from 0.25 mm to 2.3 mm (10 to 90 mils) |
| Incremental Scale Factor (ISF) |
7.87 V/mm (200 mV/mil) +/- 5% with baseline 4140 steel target |
| System Output Bounds |
-1 Vdc to -17 Vdc over complete linear span |
| Recommended Field Gap |
-9 Vdc [approximately 1.27 mm (50 mils)] for radial measurements |
| Nominal Probe Resistance |
7.59 ohms +/- 0.50 ohms (between center conductor and outer conductor) |
| Connector Structural Force |
Finger-tight mechanical connection required (ClickLoc mechanism) |
| Frequency Response Range |
0 to 10 kHz; +0, -3 dB attenuation limits |
| Standard Target Criteria |
AISI 4140 steel target; minimum 50.8 mm (2 in) shaft diameter |
| Standard Operating Temp |
-35 Celsius to +120 Celsius (-31 Fahrenheit to +248 Fahrenheit) |
| Hazardous Approvals |
ATEX/IECEx Ex ia IIC T1...T5 Ga; CSA Class I Div 1 Groups A, B, C, D |
| Country of Origin |
U.S.A. |
| Shipping Weight (Calculated) |
2.0 kg |
| Package Dimensions (Calculated) |
26.0 cm x 21.0 cm x 5.5 cm |
Installation Guidelines
CRITICAL WARNING
Completely de-energize all machinery machinery, proximity driver modules, and diagnostic infrastructure loops before initiating mechanical probe mounting procedures. Implement strict static grounding methods to insulate internal sensor coils from electrostatic discharge damage. Prevent turbine lubricants or metallic flakes from entering unsealed connector bodies during assembly.
1
Manually thread the 3/8-24 UNF-2A stainless steel probe body into the internal machine bracket or extension sleeve to confirm thread alignment and prevent cross-threading damage.
2
Connect a reliable digital voltmeter to the corresponding Proximitor monitor loop and monitor the DC voltage output while turning the probe to lock the mechanical measurement gap at exactly 1.27 mm (50 mils) or -9 Vdc.
3
Hold the integrated 5/16-inch wrench flats steady and tighten the standard 9/16-inch external locknut using an industrial torque wrench. Limit mechanical tightening torque to peak operational specification metrics.
4
Engage the male ClickLoc coaxial connector onto the matching extension cable link, applying finger pressure until a clear mechanical engagement click occurs. Do not use pliers or specialized compression tools.