Product Core Brief
- Model: 330104-11-25-10-02-00
- Brand: BENTLY Nevada
- Series: 3300 XL 8mm M10 Forward Mount Armored Proximity Transducer Line
- Part Code Breakdown:
- 330104: M10×1 metric thread, integral stainless steel braided armor, 8mm target diameter probe
-11: Unthreaded tip length = 11 mm-25: Total stainless steel housing length = 250 mm (25 cm)-10: Built-in triaxial cable total length = 1 m-02: Miniature ClickLoc male coaxial connector, standard FEP triaxial wire-00: No ATEX/IECEx/NEPSI hazardous area safety certifications (only for general industrial non-classified zones)
- Core Function: Captures radial shaft vibration, static axial thrust offset, and Keyphasor speed pulses via extra-deep metric front counterbores on centrifugal compressors and steam turbines.
- Product Type: Factory integrated single-piece armored proximity probe assembly
- Key Specs: 1 m stainless armored 50 Ω triaxial cable | 250 mm extended stainless steel housing | No hazardous area intrinsic safety certifications
- Condition: New Original (New Surplus)
Product Introduction
The BENTLY 330104-11-25-10-02-00 is an extra-long armored forward-mount eddy-current probe built for ultra-deep counterbore bearing housings where standard short-body probes cannot reach the target shaft surface. The integral stainless braided armor eliminates cable abrasion damage from sharp cabinet metal edges and frequent mechanical vibration. It outputs calibrated linear gap voltage signals for turbomachinery vibration and thrust protection systems.This unit uses a 250 mm stainless steel housing, over 2x longer than compact standard M10 probes of matching thread spec. Its FluidLoc molded cable joint blocks lubricant capillary wicking into triaxial conductors, cutting long-term measurement drift by roughly 90% in high-temperature turbine lube enclosures—though your mileage may vary with unfiltered synthetic high-viscosity turbine oils.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Mount Thread | M10×1 metric fine thread, standard forward front-install design |
| Unthreaded Tip Length | 11 mm PPS insulated sensing tip (suffix 11 code) |
| Probe Housing Length | 250 mm (9.84 in) AISI 304 stainless steel extended body (suffix 25 code) |
| Factory Integrated Cable Length | 1.0 m 50 Ω triaxial FEP stainless braided armored wire (suffix 10 code) |
| Standard Linear Sensitivity | 7.87 V/mm (200 mV/mil) calibrated 8mm XL system output |
| Full Linear Measurement Range | 0.25 mm to 2.3 mm; factory recommended installation gap 1.27 mm midpoint |
| Operating Temp (Probe Tip) | -52 °C to +177 °C continuous process exposure |
| Operating Temp (Cable Jacket) | -45 °C to +100 °C cabinet ambient air |
| Connector Hardware | Mini gold-plated ClickLoc tool-free lockable male fitting (suffix 02 code) |
| Official Certifications | API 670 Rev 4, SIL 2 capable; no ATEX/IECEx/CSA/NEPSI intrinsic safety approvals (suffix 00 code) |
| Minimum Metallic Target Diameter | 15.2 mm flat AISI 4140 steel target surface |
| Max Safe Axial Tensile Load | 330 N without molded joint separation or internal conductor breakage |
| Cable Armor Material | Flexible AISI 304 stainless steel braided armor |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Cross-reference serial numbers against OEM production logs, scan factory anti-counterfeit QR labels, inspect armored cable for fraying, extended long housing for bending dents, cracked PPS tips, or split FEP cable outer jackets.
- Live Functional Test: Mate the unit to a calibrated 330180-XX-00 uncertified Proximitor, supply 24 V DC input, run a 26 hour continuous load cycle with ambient temperature logged every 15 minutes.
- Electrical Parameter Test: Apply 500 V Megger insulation sweep; pass threshold reads >10 MΩ between triaxial conductors and outer shielding layer.
- Firmware Verification: Well, technically this passive probe contains no firmware, but record paired Proximitor firmware revision and photograph full ClickLoc connector lock engagement seating.
- Final QC & Packaging: Wipe assembly with anti-static isopropyl wipe, seal inside shielding ESD bag, affix printed QC Passed sticker stamped with exact test completion date.
Replacement Pitfall Guide
❗ Firmware Mismatch: 3500 rack firmware Revision F cannot fully compensate capacitance drift for 1-meter 8mm transducer stacks. Always upgrade rack monitor modules to Revision G before physical installation swap.❗ DIP Switch / Jumper Misconfiguration: Stock 330180 Proximitor factory default system length setting reads 5 m, not the unit’s 1 m total cable length; incorrect values create permanent static offset in thrust position trending data.❗ Terminal / Cable Incompatibility: Do not pair with 75 Ω NSv extension cables; mismatched coaxial impedance distorts high-frequency small-shaft vibration waveforms and triggers constant channel NOT OK fault flags.❗ Power Supply Mismatch: Each full transducer stack draws 120 mA at 24 V DC; calculate total rack power draw with a mandatory 20% load headroom to avoid undervoltage trips during equipment startup transients.❗ ESD Damage: Low-humidity winter cabinet air raises static discharge risk by 3.8x. Place a dedicated anti-static foam mat under the rack before disconnecting or seating the unit’s ClickLoc connector.Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
Compatibility Matrix
- 330104-11-25-10-02-00 → 330180-XX-00 Uncertified 8mm Proximitor : Direct — 50 Ω 8mm XL impedance match, zero adapter hardware required
- 330104-11-25-10-02-00 → 330980 NSv Proximitor : Incompatible — 75 Ω NSv circuits cannot calibrate the 8mm wide linear measurement span
- 330104-11-25-10-02-00 → 330104-11-25-10-02-05 : Needs Adaptation — Global hazardous certified variant, extra safety documentation mandatory for classified plant acceptance
Benchmarks
- Signal response rise time: 1.2 μs (simulated 0.1 mm step gap change on AISI 4140 steel target)
- Transducer system linear error: ≤0.21% full span (24 V DC supply, 25 °C controlled ambient)
- Connector lock cycle durability: 1,000 mate/unmate cycles with no impedance shift exceeding 0.11 Ω
