Product Core Brief
- Model: 330105-02-12-05-12-05/CN
- Brand: Bently Nevada
- Series: 3300 XL 5 mm Proximity Transducer System
- Core Function: 5 mm reversed-mount eddy-current proximity probe for shaft relative vibration, axial displacement, position, and Keyphasor reference when paired with a compatible 3300 XL extension cable and proximitor.
- Product Type: 3300 XL 5 mm Reversed Probe
- Key Specs: 5 mm reversed probe | 0.5 m probe cable | armored | ClickLoc | FluidLoc | multi-license approval
- Condition: New Original / New Surplus
Product Introduction
When radial vibration or displacement channels must fit into tight housings, the 5 mm reversed probe is often the only practical option. The Bently Nevada 330105-02-12-05-12-05/CN is a 3300 XL 5 mm reversed proximity probe with a 0.5 m integrated cable, armored construction, ClickLoc connector, FluidLoc barrier, and multi-license agency approval.
This probe is designed for installations where the probe tip faces the shaft from the rear side of the mounting bracket, typically using a 21000-series fixture. It delivers approximately 1.5 mm (60 mils) of linear range at around 200 mV/mil sensitivity when paired with a compatible 3300 XL proximitor. The armored cable adds mechanical protection, while the FluidLoc connector helps prevent oil migration along the cable—important for turbine and compressor lube-oil environments. As with all Bently Nevada ordering codes, the exact approval drawing and installation constraints should be confirmed from the physical label before commissioning.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330105-02-12-05-12-05/CN |
| Product Family | 3300 XL 5 mm Proximity Transducer System |
| Probe Type | 5 mm reversed-mount eddy-current proximity probe |
| Mounting Style | Reversed |
| Probe Cable Length | 0.5 m (code 05) |
| Armor | Armored (code 12) |
| Connector | ClickLoc (code 12) |
| Cable Type | FluidLoc (code 05) |
| Agency Approval | CN – Multi-License Approval |
| Linear Range | ~1.5 mm (60 mils) typical |
| Sensitivity | ~200 mV/mil typical with 3300 XL proximitor |
| System Power | −17.5 to −26 Vdc via proximitor |
| Frequency Response | 0 to 10 kHz typical (system-dependent) |
| Compatible Proximitor | 330180 series (verify model and calibration) |
| Compatible Monitor | 3500/40M, 3500/42M, 3500/44M, 3500/25, etc. |
Key Selling Points & Differentiators
- Reversed-mount geometry. Designed for tight radial access where a standard forward-mount probe cannot be installed.
- Armored + FluidLoc construction. Better mechanical protection than non-armored variants, and reduced risk of oil wicking through the connector.
- Exact code match. This is the 0.5 m, armored, ClickLoc, FluidLoc, multi-license approval variant—no guessing on length or certification.
- Drop-in 3300 XL compatibility. Works with standard 3300 XL extension cables and 330180-series proximitors without matched-component calibration.
- Clear boundary. Not a direct substitute for 8 mm probes. The 5 mm system has a smaller linear range and different side-clearance behavior, so channel scaling and mechanical fit must be verified.
Quality Transparency SOP
- Part number verification. We confirm the label reads 330105-02-12-05-12-05/CN and matches the 3300 XL 5 mm reversed probe family.
- Armor and FluidLoc inspection. The armored jacket, ClickLoc connector, FluidLoc barrier, and probe tip are checked for crushing, corrosion, or seal damage.
- Continuity and insulation check. Using a Fluke multimeter, we verify center conductor continuity and shield integrity from probe end to connector.
- Tip and body inspection. The probe tip, threads, and reversed-mount body are inspected for scoring, deformation, or chemical damage.
- ESD-safe packing. The probe is coiled to the recommended bend radius, sealed in an anti-static bag, and foam-packed to prevent connector stress.
Technical Risk Avoidance
❗ Confirm probe length before installation. Code “05” means a 0.5 m probe cable. If the original probe was 1.0 m, 5.0 m, or 9.0 m, this unit will not reach the extension cable without rework.
❗ Do not substitute 5 mm for 8 mm without revalidation. The 5 mm reversed probe has a shorter linear range and different mechanical envelope. Monitor scaling, bracket geometry, and gap-voltage targets must be checked.
❗ Verify FluidLoc orientation. FluidLoc connectors must be installed and routed correctly to prevent oil ingress. A reversed or damaged seal can allow lube oil to migrate into the extension cable.
❗ Confirm the approval drawing for hazardous areas. The “CN” code means multi-license approval, but the exact installation requirements—such as temperature class, IP rating, and voltage limits—must be verified against the physical label before commissioning in Zone 2 / Division 2 areas.
Buyer’s FAQ
Is this a complete sensor system? No. This is the 5 mm reversed probe only. A complete measurement channel also requires a compatible 3300 XL extension cable and 3300 XL proximitor.
Can I replace a 330103-00-05-10-02-00 with this? No. The 330103 is an 8 mm forward-mount probe, while the 330105-02-12-05-12-05/CN is a 5 mm reversed-mount probe. They are not mechanically or electrically interchangeable without bracket and monitor reconfiguration.
Does this include the extension cable and proximitor? No. Unless explicitly stated, this listing covers the probe only. Extension cable and proximitor are separate line items.
Is this genuine Bently Nevada? Yes. We sell genuine surplus inventory. The part number is verified against the physical label before dispatch. No clones or rebuilt substitutions.
What warranty applies? Standard 12-month warranty against DOA and functional defects. Mechanical damage from incorrect installation, gap setting, oil ingress, or cable crushing is not covered.
