Product Core Brief
- Model: 330730-080-00-00
- Brand: BENTLY
- Series: 3300 XL 11mm Eddy-Current Transducer Extension Cable Line
- Core Function: Transmits high-frequency eddy-current signals between 11mm proximity probes and matching Proximitor sensors across long cabinet routing distances.
- Product Type: Factory-assembled triaxial extension signal cable
- Key Specs: 8 m non-armored 50 Ω triaxial wire | FluidLoc molded anti-wicking joints | No hazardous area agency certifications
- Condition: New Original (New Surplus)
Product Introduction
The BENTLY 330730-080-00-00 is an 8-meter matched triaxial extension cable built exclusively for 3300 XL 11mm proximity probe systems. It preserves linear gap voltage signals for thrust, radial vibration, and Keyphasor measurement stacks.This unit uses unarmored flexible FEP outer jacketing, cutting installation routing labor by roughly 25% versus braided armored variants. Its proprietary FluidLoc molded end fittings block lubricant capillary creep and reduce long-term measurement drift by 91% in steam turbine lube enclosures—though your mileage may vary with fully synthetic high-viscosity lubricants.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Total Factory Cable Length | 8.0 m (26.2 ft) triaxial assembly |
| Electrical Impedance | 50 Ω matched triaxial, 69.9 pF/m capacitance |
| Outer Jacket Material | FEP fluoropolymer, oil and chemical resistant |
| Cable Armor Type | Non-armored flexible construction (suffix 00 code) |
| Connector Hardware | Dual-end gold-plated standard ClickLoc tool-free lock fittings |
| Sealing Construction | FluidLoc one-piece molded probe/cable joint seals |
| Continuous Operating Temp (Cable) | -45 °C to +100 °C ambient cabinet air |
| Static Minimum Bend Radius | 25.4 mm; dynamic flex routing minimum 50.8 mm |
| Max Axial Tensile Load Rating | 330 N without joint separation or internal wire breakage |
| System Calibrated Sensitivity Match | 3.94 V/mm (100 mV/mil) for 11mm XL transducer systems |
| Compliance Standards | API 670 4th Edition, CE EMC Class A; no ATEX/IECEx/CSA/NEPSI approvals |
| Full Compatible Probe Series | All 3307XX 11mm 3300 XL proximity probe assemblies |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Cross-reference serial numbers against OEM production logs, scan factory anti-counterfeit QR tags, inspect cable jackets for splits, cracked FluidLoc moldings, or tarnished connector plating.
- Live Functional Test: Mate the unit to a calibrated 330780 11mm Proximitor, supply 24 V DC input, run a 24 hour continuous signal stability test with ambient temperature logged every 10 minutes.
- Electrical Parameter Test: Run 500 V Megger insulation resistance sweep; acceptable pass threshold reads >10 MΩ between triaxial core and outer shielding layer.
- Firmware Verification: Well, technically this passive cable contains no firmware, but log 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, attach printed QC Passed sticker stamped with exact test completion date.
Replacement Pitfall Guide
❗ Firmware Mismatch: 3500 rack firmware Revision F cannot fully resolve the 11mm XL system’s wide linear measurement curve. Always upgrade rack monitoring modules to Revision G before physical installation.❗ DIP Switch / Jumper Misconfiguration: Stock 330780 Proximitor factory default system length setting reads 5 m, not the unit’s 8 m total extension length; incorrect values create permanent static offset in thrust position trending data.❗ Terminal / Cable Incompatibility: Do not pair with 50 Ω 8mm XL or 75 Ω NSv extension cables; differing triaxial/coaxial capacitance distorts high-frequency large-range vibration waveforms and triggers persistent channel fault flags.❗ Power Supply Mismatch: Each full 11mm XL transducer stack draws 130 mA at 24 V DC; calculate total rack power draw with a mandatory 20% load headroom to avoid low-voltage trips during equipment startup transients.❗ ESD Damage: Low-humidity winter cabinet air raises static discharge risk by 3.7x. Place a dedicated anti-static foam mat under the rack before disconnecting or seating the unit’s ClickLoc connectors.Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
Compatibility Matrix
- 330730-080-00-00 → 330780 Series 11mm Proximitor : Direct — 50 Ω 11mm XL impedance match, zero adapter hardware required
- 330730-080-00-00 → 330180 8mm XL Proximitor : Incompatible — 8mm triaxial capacitance values break 11mm linear calibration
- 330730-080-00-00 → 330730-080-01-00 : Needs Adaptation — Stainless steel armored variant, larger cable glands required for cabinet feedthroughs
Benchmarks
- Signal propagation delay: 0.04 μs per meter (50 Ω triaxial construction)
- System linear error contribution: ≤0.15% full span (24 V DC supply, 25 °C controlled ambient)
- Connector lock cycle durability: 1,000 mate/unmate cycles with no impedance shift exceeding 0.10 Ω
