Description
Product Core Brief
- Model: 330730-040-00-00
- Brand: Bently Nevada
- Series: 3300 XL 11 mm
- Core Function: Connects 11 mm proximity probes to Proximitor modules.
- Product Type: Extension Cable
- Key Specs: 4.0 m Length | 50 Ω Impedance | 11 mm System
- Condition: New Original (New Surplus)

BENTLY 330730-040-00-00
Product Introduction
BENTLY 330730-040-00-00 is a 4-meter extension cable designed specifically for 3300 XL 11 mm proximity transducer systems. It bridges the gap between field sensors and rack-mounted Proximitor modules.
This cable maintains 50 Ω ±5% characteristic impedance to prevent signal reflections. The BENTLY 330730-040-00-00 features factory-terminated connectors and a rugged industrial jacket for harsh environments. Verify total system cable length against OEM limits.
Key Technical Specifications
- Cable Length: 4.0 meters (length code -040)
- Characteristic Impedance: 50 Ω ±5%
- System Compatibility: 3300 XL 11 mm Proximitor
- Connector Type: Factory-Terminated ClickLoc
- Operating Temp: -52 °C to +177 °C
- Shielding: Coaxial construction with noise immunity
- Insulation Material: FEP / Fluororubber
- Power Requirements: None (passive cable)
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Trace source via serial number. Inspect connectors for bent pins or corrosion.
- Live Functional Test: Connect to TK-3E calibrator. Verify signal transmission across full length.
- Electrical Parameter Test: Measure impedance (50 Ω ±5%) and insulation (500 V Megger, >10 MΩ).
- Cable Integrity Test: Check continuity and shield grounding at both ends.
- Final QC & Packaging: Seal in anti-static bag. Apply QC Passed label with date.
Replacement Pitfall Guide
❗ System Size Mismatch: The BENTLY 330730-040-00-00 is strictly for 11 mm systems. Using it with an 8 mm or 5 mm probe will cause severe calibration errors.
❗ Impedance Mismatch: Never substitute with generic coaxial cable. The 50 Ω impedance is critical for eddy current signal integrity.
❗ Connector Torque: ClickLoc connectors are finger-tightened. Do not use wrenches. Over-torquing damages the locking mechanism.
❗ Cable Routing: Route away from VFD cables. EMI can corrupt the low-level eddy current signal.
❗ ESD & Handling: Use anti-static mat. Dry environments increase failure risk during handling.
Keep these in mind and you’ll cut 90% of rework time.

BENTLY 330730-040-00-00
Compatibility Matrix & Benchmarks
- 330730-040-00-00 → 330730-040-01-00 : Direct — equivalent part number
- 330730-040-00-00 → 330730-080-00-00 : Incompatible — 8m length changes calibration
- 330730-040-00-00 → 330130-040-00-00 : Incompatible — 8mm system cable
Benchmarks:
- Signal attenuation: <0.5 dB at 8 kHz (4 m length)
- EMI rejection: >60 dB (coaxial shielded design)
Need me to pull up the matching 330180 proximitor module for this 11 mm probe? Let me know which one you’d like.


