Product Core Brief
- Model: 330105-02-12-10-02-CN
- Brand: Bently Nevada
- Series: 3300 XL 8mm
- Core Function: Non-contact shaft vibration and position sensing from behind the target.
- Product Type: Reverse Mount Proximity Probe
- Key Specs: 1.0m Cable | 7.87 V/mm Sensitivity | Reverse Mount
- Condition: New Original / New Surplus
BENTLY 330105-02-12-05-02-05
Product Introduction
The Bently 330105-02-12-10-02-CN serves as a specialized reverse-mount eddy current sensor. This proximity probe monitors critical shaft motion from behind the target surface.
This industrial automation unit features a precise 1.0m cable length. It maintains 7.87 V/mm sensitivity across a 2mm linear range reliably.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Tip Diameter | 8 mm (0.315 in) |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Linear Range | 2 mm (80 mils) |
| Cable Length | 1.0 m (3.3 ft) |
| Mounting Style | Reverse / Back-Mount |
| Thread Size | 3/8-24 UNF |
| Frequency Response | 0 to 10,000 Hz |
| Operating Temp | -52°C to +177°C |
| Compliance | API 670 |
| Output Signal | Analog Voltage |
Quality Control Process
Every replacement module starts with coil resistance verification. We use a Fluke multimeter to confirm factory tolerances. Next, we test linearity on a precision micrometer stage. Deviations beyond ±2% trigger immediate rejection. Thermal soak testing follows at 177°C. This validates insulation integrity under extreme heat. Finally, we inspect the reverse-mount threads for damage. All units ship in anti-static shielding.
Replacement Pitfall Guide
❗ Verify Reverse Mount Clearance. This probe mounts behind the target. Ensure you have adequate back-side access. Standard front-mount probes won’t fit this geometry.
❗ Respect the 1.0m Cable Limit. This short cable is electrically tuned. Extending it with standard coax changes capacitance. Your gap voltage will drift without recalibration.
❗ Check Thread Specification. The 3/8-24 UNF thread is fine-pitch. Cross-threading in aluminum housings destroys the mount instantly. Use a thread gauge first.
❗ Mind the Grounding Point. Ground the shield at the monitor chassis only. Ground loops inject 60Hz noise into your vibration data. Double-grounding kills signal integrity.
Keep these in mind and you’ll cut 90% of rework time.
BENTLY 330105-02-12-05-02-05
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| 330105-02-12-10-02-CN | 330105-02-12-10-02-00 | Direct | Identical specs, non-CN suffix |
| 330105-02-12-10-02-CN | 330105-02-12-05-02-CN | Needs Adaptation | 0.5m cable requires recalibration |
| 330105-02-12-10-02-CN | 330105-02-12-10-02-05 | Needs Adaptation | ClickLoc connector vs. bare lead |
- Dynamic Range: >60 dB typical signal-to-noise ratio.
- Response Time: <10 µs step response for transient capture.
