330801-28-20-050-03-02
Bently Nevada 330801-28-20-050-03-02 PROXPAC XL Proximity Transducer Assembly
330801-28-20-050-03-02 is an original metric-format PROXPAC XL configuration that combines a 3300 XL 8 mm probe, Proximitor sensor and protective probe housing in one field-wired assembly. Every value below is tied to this complete ordering code and is not copied from a similar suffix.
Confirmed Product Information
| Manufacturer | Bently Nevada, a Baker Hughes business |
| Original ordering family | 330801 metric PROXPAC XL assembly |
| Probe and approvals option 28 | 3300 XL 8 mm probe with multiple approvals |
| Standoff adapter option 20 | 200 mm |
| Probe penetration option 050 | 50 mm |
| Fittings option 03 | One M20 fitting and two plugs |
| Mounting thread option 02 | 3/4-14 NPT; required when a standoff adapter is ordered |
| Integrated sensor architecture | Housing cover contains its own 3300 XL Proximitor sensor; no separate extension cable or external Proximitor housing is required |
| Input probe | 3300 XL 8 mm probe with 1 m cable installed in the sleeve |
| Linear range | 2.0 mm (80 mil), approximately 0.25 to 2.3 mm from the target |
| Recommended gap | 1.27 mm (50 mil) |
| Scale factor | 7.87 V/mm (200 mV/mil), ±5% including interchangeability error |
| Frequency response | 0 to 10 kHz, +0 / -3 dB, with up to 305 m of field wiring |
| Environmental enclosure | Type 4X and IP66 |
| Housing material | Glass- and conductive-fiber-reinforced polyphenylene sulfide (PPS) |
Applications
Confirmed Compatibility And Installation Conditions
Lifecycle And Replacement Guidance
The current manufacturer datasheet lists the 330881 metric family while retaining original 330801 references for replacement-sleeve calculations. It does not state a universal drop-in replacement for this complete 330801 code.
Frequently Asked Questions
Does 330801-28-20-050-03-02 require a separate extension cable or Proximitor housing?
No. The PROXPAC XL cover contains the Proximitor sensor and the installed 1 m probe connects inside the assembly; field wiring runs directly to the monitor.
Can a current 330881 assembly replace 330801-28-20-050-03-02 without engineering review?
Do not assume that. Verify the original sleeve and mounting dimensions, fittings, approvals, field wiring and installation drawing before selecting a current configuration.
Does 330801-28-20-050-03-02 need extra probe-sleeve support?
Its 200 mm standoff plus 50 mm penetration totals 250 mm, which is below the manufacturer's support threshold of more than 305 mm; the final mechanical arrangement still requires review.
What case preparation may be needed for 330801-28-20-050-03-02?
At a 50 mm penetration, the manufacturer notes that counterboring may be needed to reduce probe side-view or rear-view effects.
Which certification check applies to 330801-28-20-050-03-02?
Option 28 specifies the multiple-approvals probe configuration. Confirm the certification marking and applicable safe-installation document for the supplied unit.
Model Identification
Use the complete identifier 330801-28-20-050-03-02. Hyphen placement, zero padding and every suffix field are significant; compare the full nameplate and purchase record before ordering.
Manufacturer References
Bently Nevada PROXPAC XL Proximity Transducer Assembly Datasheet, document 178554 Rev. E.
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