Product Core Brief
- Model: 330101‑23‑39‑10‑12‑CN
- Brand: BENTLY Nevada (Baker Hughes)
- Series: 3300‑XL 8 mm Proximity Transducer System
- Order Suffix Breakdown
- 23 = Unthreaded length: 23 mm exposed unthreaded body segment
- 39 = Overall probe case length: 39 mm total housing length
- 10 = Integral cable length: 1.0 meter (3.3 ft)
- 12 = Connector‑cable option: Miniature ClickLoc coaxial connector, FluidLoc non‑armored cable
- CN = Regional variant: China‑market compliance documentation package; electrical‑mechanical performance matches base‑05 hardware
- Core Function: Non‑contact eddy‑current proximity probe. Optimized for narrow‑mount probe ports. Measures radial shaft vibration, axial thrust position and gap voltage for turbines, compressors and large rotating machinery. Full measurement chain requires matching 3300‑XL proximitor sensor plus extension cable to deliver usable readings.
- Product Type: 3300‑XL 8 mm proximity probe, non‑armored FluidLoc cable, short‑housing with extended unthreaded section, China‑compliant variant.
- Key Specs: 200 mV/mil (7.87 V/mm) system sensitivity; 2 mm (80 mil) linear range; 3/8‑24 UNF‑2A mounting thread; ClickLoc FluidLoc construction; CN regional compliance; non‑armored cable. ⚠️ Active production; total system cable length must strictly match proximitor configuration during replacement.
BENTLY 330101‑23‑39‑10‑12‑CN
Product Introduction
BENTLY 330101‑23‑39‑10‑12‑CN belongs to the 3300‑XL 8 mm eddy‑current probe family. The 23 mm unthreaded segment paired with short 39 mm overall housing targets installation ports with limited bore depth, where standard zero‑unthreaded short‑body probes cannot position the coil at the correct target gap.
This unit ships with 1.0 m built‑in FluidLoc non‑armored cable and terminates at miniature ClickLoc coaxial connector. The CN suffix delivers China‑specific compliance paperwork; electrical and mechanical specifications are identical to the 330101‑23‑39‑10‑12‑05 base model. The probe cannot operate standalone; it must pair with a 3300‑XL proximitor and matched‑length extension cable to complete the transducer measurement chain. Linear operating gap sits between 0.25 mm and 2.3 mm —though your mileage may vary if target material is non‑carbon‑steel or if total system cable length programmed inside proximitor deviates from physical hardware total length.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Probe Tip Diameter | 8 mm |
| Nominal System Sensitivity | 200 mV/mil (7.87 V/mm), tolerance ±5 % |
| Linear Measurement Range | 2.0 mm (80 mils); usable gap 0.25 mm to 2.3 mm |
| Mounting Thread | 3/8‑24 UNF‑2A; lock‑nut included |
| Unthreaded Segment Length | 23 mm |
| Total Probe Housing Length | 39 mm |
| Integral Cable | 1.0 m; FluidLoc non‑armored FEP jacket |
| Connector | Miniature ClickLoc coaxial (12 option) |
| Regional Compliance | CN documentation package; base hardware carries ATEX / IECEx hazardous‑area qualifications |
| Recommended Mount Torque | 8.1 N·m (72 in‑lb) maximum |
| Probe Operating Temp | ‑35 °C to +120 °C |
| Cable Operating Temp | ‑35 °C to +100 °C |
| Target Material Requirement | Carbon steel; correction factor applies for alloy / stainless‑steel shafts |
| Physical Weight | 0.054 kg |
| Country of Origin | United States |
BENTLY 330101‑23‑39‑10‑12‑CN
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Source traceability, serial number cross‑check. Visual inspection for tip coil damage, thread burrs, cable cuts, connector pin deformation. Confirm full part number 330101‑23‑39‑10‑12‑CN; verify 23 mm unthreaded and 39 mm total housing dimensions.
- Live Functional Test: Bench test with calibrated gap fixture; verify gap‑voltage slope matches nominal sensitivity. Insulation resistance check between center conductor and shield. Record serial number against factory calibration data.
- Electrical Parameter Test: Insulation resistance (500 V Megger, >10 MΩ). Reject units showing low isolation values.
- Documentation Review: Confirm CN‑compliant regional documentation set is supplied. Well, technically the probe has no internal configuration parameters; total system cable length must be programmed in paired proximitor. Mismatched length creates offset and sensitivity error without triggering hardware fault alarms.
- Final QC & Packaging: Anti‑static bag; include lock‑nut, mounting‑torque instruction sheet, protective connector dust cap.
Replacement Pitfall Guide
❗ Physical Fit Risk: This probe has a 23 mm exposed unthreaded section. Do not substitute zero‑unthreaded probes; mechanical fit and tip stand‑off gap will be wrong. Verify bore depth of mounting port before swap‑out.❗ Full‑System Length Rule: This probe’s 1.0 m integral cable plus extension‑cable length must exactly match total‑length setting programmed inside the 3300‑XL proximitor. Wrong length produces incorrect gap readings with no fault indication.❗ Target Material Effect: Stainless‑steel or alloy shaft surfaces shift effective sensitivity. Apply published material correction factor; do not rely purely on carbon‑steel nominal calibration values.❗ Mounting Torque Limit: Never exceed 8.1 N·m installation torque. Over‑torque crushes internal probe coil and permanently degrades measurement performance.❗ Non‑armored FluidLoc Cable: No stainless‑steel armor fitted. Route cable inside conduit for exposed field runs; avoid sharp edges and mechanical crush loads.❗ Connector Handling: ClickLoc coaxial contacts are delicate. Keep dust cap fitted when disconnected. Moisture or dirt inside connector creates hard‑to‑isolate intermittent drift faults.❗ ESD Damage: Use anti‑static wrist strap while handling open‑connector assemblies. Static discharge can alter coil characteristics with zero visible physical damage.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- Response: Analog continuous gap‑proportional voltage output, no digital scan delay
- System requirement: Must pair with 3300‑XL proximitor sensor and matched‑length extension cable.
