Product Core Brief
- Full Model: 330171-00-12-10-01-05
- Brand: Bently Nevada (Baker Hughes)
- Series: 3300 Standard 5mm Eddy-Current Proximity Transducer System
Complete Suffix Order Code Decode
- 330171: Base probe series
- Thread: 1/4-28 UNF American fine thread forward front mounting
- Cable: Factory integrated stainless steel braided armored coaxial cable
-00(A segment): Unthreaded smooth tip length = 0 inch (full thread all the way to PPS sensing head)-12(B segment): Stainless steel probe housing total length = 1.2 inch (30.48mm) compact short body-10(C segment): Factory pre-attached armored cable total length = 1.0 meter-01(D segment): Standard ClickLoc gold-plated locking coaxial connector, armored cable dedicated molded FluidLoc anti-oil-seal joint-05(E suffix): Global multi hazardous area certification package: ATEX/IECEx Zone2, CSA Class I Div2, SIL2 functional safety rating
- Core Function: Small-diameter 5mm armored eddy-current proximity probe, used for radial shaft vibration, axial thrust displacement and Keyphasor rotational speed measurement on small compressors, steam auxiliary pumps, small gas turbines with narrow bearing housings and abrasive cable routing environments.
- Product Type: One-piece factory integrated probe + stainless steel braided armored coaxial signal cable assembly
- Key Specs: 1/4-28 UNF standard thread | 1m stainless steel armored cable | 3.94 V/mm (100 mV/mil) 5mm standard sensitivity | FluidLoc anti-lube-oil infiltration molding | Full international explosion-proof safety certifications
- Condition: New Original (New Surplus), active OEM petrochemical & power plant spare, no formal obsolescence schedule
Key Technical Specifications
表格
| Parameter | Defined Value |
|---|---|
| Mounting Thread | 1/4-28 UNF American fine thread, forward standard front mounting design |
| Unthreaded Tip Section | 0 inch, full threaded PPS chemical resistant insulated sensing tip |
| Probe Stainless Steel Housing | 1.2 inch (30.48 mm) compact casing for shallow narrow mounting counterbores |
| Factory Integrated Cable Length | 1.0 m matched 5mm dedicated coaxial cable with AISI304 stainless steel braided armor |
| Cable Electrical Property | Low capacitance coaxial matching for 3300 5mm system, FEP high-temperature inner insulation + abrasion-resistant metal armor |
| Sealing Technology | Patented FluidLoc molded probe-cable integrated joint, blocks turbine lube oil and process liquid wicking into internal conductors |
| Connector Hardware | Standard ClickLoc finger-lock gold-plated coaxial male connector, tool-free lock/unlock |
| Linear Measurement Range | 0.25 mm ~ 1.27 mm full linear span; factory recommended installation gap 0.76 mm (30 mil) mid-range |
| Standard 5mm System Sensitivity | 3.94 V/mm (100 mV/mil) linear DC gap voltage output when matched with dedicated 3300 5mm Proximitor signal conditioner |
| Minimum Metallic Target Requirement | Flat target ≥12.7 mm diameter; minimum recommended monitoring shaft diameter ≥38 mm |
| Operating Temperature Range | Probe tip: −52°C ~ +177°C continuous; cable: −45°C ~ +100°C continuous cabinet operation |
| Mechanical Bend Limits | Static cable minimum bend radius 25.4 mm; dynamic vibration routing ≥50.8 mm |
| Axial Tensile Pull Strength | Max 330 N (75 lbf) without joint separation or internal wire breakage; armor resists crush & friction damage |
| Compliance & Certifications | API 670 4th Edition, CE EMC Class A, SIL2 functional safety; ATEX/IECEx Zone 2, CSA Div2 intrinsic safety explosion certifications (suffix 05) |
| System Hardware Compatibility | Exclusively matched with 3300 series 5mm dedicated Proximitor sensors; analog output fully interoperable with all 3500 TSI rack monitor modules (3500/42M, 3500/50) |
| Mechanical Feature Distinction | Stainless steel braided armored cable (suffix 01 cable code), heavy mechanical protection for cabinet routing with sharp edges, repeated friction or tensile loads |
Product Introduction
This compact 5mm armored proximity probe is developed for small-size rotating equipment with limited bearing housing installation space, where standard 8mm/11mm large-diameter probes cannot fit. The stainless steel braided armored cable solves abrasion, squash and tensile damage issues in harsh industrial cabinet wiring environments that quickly wear out ordinary non-armored cables.
The FluidLoc molded integrated joint eliminates slow measurement drift caused by lubrication oil penetrating coaxial conductors, a major failure point of generic aftermarket replacement probes.Suffix -05 multi-cert variant carries complete international explosion-proof certifications, suitable for global refinery, LNG, chemical plant and offshore hazardous classified zone safety instrumented protection loops.
Complete 5mm Measurement System Composition
5mm Armored Probe (330171 series) + optional matching armored 5mm extension cable + dedicated 3300 5mm Proximitor signal conditioner + 3500 series TSI rack monitor
Critical Compatibility Limitation
This 5mm standard probe uses dedicated coaxial impedance matching, completely incompatible with 8mm XL / 11mm XL / NSv 75Ω miniature probe front ends. Cross-mixing hardware will destroy linearity and produce severe permanent measurement offset errors.
Model Series Distinction (3300 5mm Probe Family)
- 330171: 1/4-28 UNF thread, armored cable (this model)
- 330172: 1/4-28 UNF thread, non-armored cable
- 330173: M8×1 metric thread, non-armored cable
- 330174: M8×1 metric thread, armored cableAll 330171~330174 series share identical 5mm electrical matching, interchangeable within the full 3300 5mm transducer system.
Firmware & Software Compatibility Notes
This probe is a passive analog sensing assembly with no onboard firmware. System matching rules for paired 5mm Proximitor and 3500 TSI rack monitors:
- Minimum compatible 3500 monitor firmware revision: Revision G
- Minimum Rack Configuration Software version: v2.00
- All M-series monitor modules inside the 3500/05 chassis must run unified matching firmware revisions to correctly interpret the 5mm 100 mV/mil linear gap voltage characteristic curve.
- Mandatory commissioning step: Input total combined transducer length (1m armored probe + optional extension cable) into rack configuration software to activate built-in cable capacitance linearity compensation; incorrect length input generates permanent static measurement offset errors.
Frequently Asked Questions
- Can I disconnect the probe ClickLoc connector while the 5mm Proximitor 24VDC 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 5mm forward mount probe remains active OEM stock with no end-of-life date:
- General industrial non-hazardous version: 330171-00-12-10-01-00 (no explosion certifications, cannot be deployed in classified zones)
- Domestic NEPSI certified version: 330171-00-12-10-01-CN (adds China NEPSI intrinsic safety certification, dedicated for Chinese hazardous zone projects)The
-05international multi-cert version is not zero-modification interchangeable with-00/-CNfor different regional safety compliance requirements.
- Will transducer linearity or gap calibration data erase if the rack loses full power?All 5mm system length and sensitivity 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 transducer 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, coaxial impedance consistency, stainless armor structural integrity, ClickLoc connector plating integrity, FluidLoc molded seal performance, and full ATEX/IECEx/CSA certification validity. 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 load 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 0–1.27mm 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 with full certification documentation. Refurbished units skip this multi-step electrical and mechanical testing workflow, introducing unplanned downtime risk for safety-critical compressor vibration and thrust position protection loops.
- Can this 5mm armored probe mate with 330180 series 8mm XL Proximitor sensors?No, this 5mm probe uses dedicated coaxial matching parameters exclusive to 3300 5mm dedicated front ends. 8mm XL probe systems adopt 50Ω triaxial cables with different capacitance matching parameters; cross-mixing hardware completely breaks measurement linearity and generates severe permanent offset errors. Verify 5mm vs 8mm 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.
