Product Core Brief
- Full Model: 330106-A05-B30-C10-D02-E00 = 330106-05-30-10-02-00
- Brand: Bently Nevada (Baker Hughes)
- Series: 3300 XL 8mm Eddy-Current Proximity Transducer, Reverse Mount Metric Armored Series
Complete Suffix Decode (AXX-BXX-CXX-DXX-EXX)
- 330106: Base probe series
- M10×1 metric mounting thread
- Reverse rear-side installation design
- Factory integrated stainless steel braided armored cable
- A05 (-05): Unthreaded smooth tip segment length = 0.5 inch (12.7 mm)
- B30 (-30): Total stainless steel probe housing length = 30 mm compact body
- C10 (-10): Factory pre-attached armored cable total length = 1.0 meter
- D02 (-02): Miniature gold-plated ClickLoc lockable coaxial connector, standard FluidLoc molded joint
- E00 (-00): No ATEX / IECEx / CSA / NEPSI hazardous area agency certifications, general industrial non-classified zone use
- Core Function: Back-side reverse mount armored eddy-current proximity probe, installed from bearing housing rear counterbores. Measures radial shaft vibration, axial thrust displacement, Keyphasor rotational speed on gas/steam turbines, centrifugal compressors with sharp-edged, abrasive cable routing environments.
- Product Type: One-piece factory integrated probe + stainless steel braided armored triaxial cable assembly
- Key Specs: M10×1 metric thread | 1m armored cable | 7.87 V/mm (200 mV/mil) linear sensitivity | FluidLoc anti-oil-wick molding | General industrial non-ex certified
- Condition: New Original (New Surplus), active OEM power generation spare, no formal obsolescence schedule
Key Technical Specifications
| Parameter | Defined Value |
|---|---|
| Mounting Thread | M10×1 metric fine thread, reverse rear counterbore installation |
| Unthreaded Tip Length | 0.5 inch (12.7 mm) PPS insulated smooth sensing tip |
| Probe Stainless Steel Housing | 30 mm compact short case for shallow rear mounting holes |
| Factory Integrated Cable | 1.0 m matched 50Ω triaxial cable with AISI 304 stainless steel braided armor |
| Cable Electrical Property | 50Ω triaxial, capacitance 69.9 pF/m, FEP high-temperature inner insulation |
| Sealing Tech | Patented FluidLoc molded probe-cable joint, blocks turbine lube oil/process liquid infiltration |
| Connector Hardware | Mini ClickLoc tool-free finger-lock gold-plated coaxial male connector |
| Linear Measurement Span | 0.25 mm ~ 2.3 mm full linear range; recommended installation gap 1.27 mm (50 mil) mid-range |
| Standard System Sensitivity | 7.87 V/mm (200 mV/mil) linear gap voltage output when matched with standard 3300 XL 8mm Proximitor |
| Minimum Target Requirement | Flat metallic target ≥15.2 mm diameter; recommended shaft diameter ≥50.8 mm |
| Operating Temperature | Probe tip: −52°C ~ +177°C continuous; cable: −45°C ~ +100°C continuous |
| Mechanical Bend Limits | Static cable minimum bend radius 25.4 mm; dynamic flex routing ≥50.8 mm |
| Axial Tensile Pull Strength | Max 330 N (75 lbf) without joint separation or internal wire breakage |
| Compliance Certifications | API 670 4th Edition, CE EMC Class A; suffix E00 = no hazardous explosion-proof approvals |
| Compatible System Hardware | Exclusively matched with 3300 XL 8mm Proximitor signal conditioners; fully interoperable with 3500/42M, 3500/50 TSI rack monitor modules |
| Mechanical Feature | Stainless steel braided armored cable (anti-abrasion, anti-squash, anti-tensile protection) |
Product Introduction
This M10 metric reverse mount armored proximity probe solves two core site pain points:
- Rear counterbore mounting where front-side installation is mechanically blocked by shaft, seals or bearing structure
- Harsh cabinet routing with sharp metal edges, repeated friction and heavy tensile loads that damage unarmored cables
The FluidLoc molded joint eliminates slow measurement drift caused by lubricant oil penetration into triaxial conductors, a common failure mode of generic aftermarket probes.Suffix -00 variant is only suitable for general non-hazardous industrial workshops, power plant non-classified machinery rooms; cannot be deployed in refinery, LNG, chemical plant Zone/Div classified hazardous areas (use E05 multi-cert model for hazardous zones).
A complete measurement stack requires: armored reverse mount probe + optional matching armored extension cable + dedicated 3300 XL 8mm Proximitor sensor, wired to 3500 TSI monitor racks.
Critical Model Distinction
- 330105 series: 3/8-24 UNF American thread, non-armored base reverse mount probe
- 330103 series: M10 metric reverse mount, non-armored cable
- 330106 series: M10 metric reverse mount, factory integrated stainless steel braided armored cableAll 330103/330105/330106 share identical 50Ω triaxial electrical matching, interchangeable within the full 8mm 3300 XL system.
Firmware & Software Compatibility Notes
This probe is a passive analog sensing assembly with no onboard firmware. System compatibility rules for paired Proximitor and 3500 rack monitors:
- Minimum compatible 3500 monitor firmware: Revision G
- Minimum Rack Configuration Software: v2.00
- All M-series monitor modules inside the 3500/05 chassis must run unified matching firmware revisions to correctly interpret the 8mm 200 mV/mil linear gap voltage curve.
- Commissioning mandatory step: Input total combined length (1m armored probe + optional extension cable) into rack software to activate built-in cable capacitance linearity compensation; incorrect length input creates permanent static measurement offset errors.
Frequently Asked Questions
- Can I disconnect the probe ClickLoc connector while the 24VDC Proximitor power remains live?Yes, power shutdown is not required for connector disconnection. Unplugging the RF input triggers persistent channel fault alarms on the 3500 rack and cuts all vibration/thrust displacement data, but no permanent damage occurs to the Proximitor internal circuit or rack monitor analog input. Fully re-seat the ClickLoc connector until the locking tab clicks to clear fault status.
- Is this part obsolete? Are there direct plug-and-play alternative variants?This armored reverse mount probe remains active OEM stock with no end-of-life date.
- Certified hazardous zone variant: 330106-05-30-10-02-05 (E05 suffix with ATEX/IECEx/CSA SIL2 approvals), cannot replace E00 for non-hazardous projects if explosion certification is unnecessary.
- Non-armored M10 reverse mount: 330103-05-30-10-02-00, identical electrical performance but no armor protection, not plug-and-play for abrasive routing environments.
- Will transducer linearity or gap calibration data erase if the rack loses full power?All system sensitivity and total length calibration parameters store in non-volatile flash memory on the paired 3500 monitor module, not the probe assembly itself. Full rack power loss does not erase transducer configuration data; swapping this unit only requires physical reconnection with zero software rework if total system length stays unchanged.
- What warranty and reliability differences separate New Surplus original vs refurbished units?New Surplus factory original probes carry a 12-month full functional warranty covering coil linearity, 50Ω triaxial impedance consistency, stainless armor structural integrity, ClickLoc connector plating integrity, and FluidLoc molded seal performance. Refurbished probes only offer 3–6 month limited coverage, with hidden risks of cracked PPS tip insulation, broken armor strands, worn connector locking tabs, and compromised liquid sealing that cause drifting vibration readings during turbine thermal cycles.
- Why is New Surplus original pricing higher than generic used/refurbished alternatives?All brand-new original probes pass complete standardized factory QC validation: serial traceability against OEM production logs, full 0–2.3mm linearity sweep bench testing, 24-hour thermal soak aging test, RF input impedance matching verification, armor abrasion durability cycling, 1000-cycle connector lock durability testing, and sealed anti-static factory packaging. Refurbished units skip this multi-step electrical and mechanical testing workflow, introducing unplanned downtime risk for safety-critical turbine vibration and thrust position protection loops.
- Can this armored reverse mount probe mate with 11mm 330700 series Proximitor sensors?No, this 8mm probe uses 50Ω triaxial matching parameters exclusive to 3300 XL 8mm Proximitor hardware. 11mm probe systems adopt different capacitance matching; cross-mixing hardware completely breaks measurement linearity and generates severe permanent offset errors. Verify 8mm vs 11mm probe model before wiring to avoid irreparable Proximitor RF input circuit damage.
- Does the probe locally store vibration waveforms or long-term rotor position trending logs?No, the assembly is a fully passive analog sensing component with zero memory or signal processing hardware. All vibration amplitude, axial thrust displacement, Keyphasor rotational speed trending records and fault event logs are captured and retained exclusively by the Slot1 3500/20 TDI master communication gateway module. This probe only outputs raw high-frequency eddy-current gap voltage signals without modifying or storing measurement data.
