Features:
- Houses a 3300 XL 8 mm proximity probe with multiple approvals and an integrated Proximitor® Sensor inside a single molded enclosure
- Fabricated from Polyphenylene Sulfide (PPS) with glass and conductive fiber reinforcement, achieving Type 4X and IP66 environmental ratings
- Accommodates both direct field wiring to monitors for short cable runs and junction box termination for longer cable runs
The 330801-28-00-050-03-02 PROXPAC® Proximity Transducer serves as a fully self-contained proximity probe system, providing conditioned vibration and position signals to machinery protection monitors. It continuously eliminates the need for an external extension cable and a separate Proximitor® housing by embedding the Proximitor® Sensor directly inside the assembly cover, converting the raw probe signal to a stable output at the transducer location.
The 330801-28-00-050-03-02 delivers essential proximity measurement functions for the entire monitoring path and is a critical component of the protection system, directly influencing the proper detection of radial vibration, thrust position, and shaft eccentricity. One 330801-28-00-050-03-02 assembly is required per monitoring point depending on the desired measurement coverage, and the unit occupies a compact external profile identical in mounting detail to the legacy 31000/32000 probe housings. The 330801-28-00-050-03-02 is always installed at the machine bearing housing through its 3/4-14 NPT thread, occupying the dedicated probe port position without additional standoff hardware.
For longer cable run applications, the monitoring system typically utilizes a junction box mounted at or near the machine skid to house terminal strips. In addition to direct wiring for short cable runs between the monitors and the 330801-28-00-050-03-02, this configuration provides organized access to Proximitor® signals at a convenient location adjacent to the rotating equipment. Field wiring is connected to terminal strips inside the junction box, delivering reliable signal distribution while preserving measurement integrity.
The 330801-28-00-050-03-02 Bently Nevada PROXPAC® Proximity Transducer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330801-28-00-050-03-02 PROXPAC® Proximity Transducer Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 330801-28-00-050-03-02 PROXPAC® Proximity Transducer Specs
General
- Manufacturer Bently Nevada
- Model 330801-28-00-050-03-02
- Condition New Original ready stock
- Product Family 330801-28-00-050-03-00,330801-28-00-050-03-01
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Rotating Machinery Diagnostics: Continuous monitoring of radial vibration and axial (thrust) shaft position measurements on fluid-film bearing machines.
- Compact Skid Packages: Ideal for industrial compressor packages, pumps, and fan monitoring systems where integrated sensing reduces external component footprints.
- Severe Processing Environments: Widely deployed across petrochemical, chemical, and refining plants where field wiring must link directly from the asset to the main control system.
- Speed & Phase Tracking: Serving as a Keyphasor reference for timing, speed synchronization, and phase angle tracking.
- Ingress and Protection: The housing is composed of advanced molded Polyphenylene Sulfide (PPS) reinforced with glass and conductive fibers. It is explicitly rated for Type 4X and IP66 environments.
- Electrical Shielding: The conductive fibers embedded within the PPS housing actively dissipate hazardous electrostatic charges and limit electromagnetic interference (EMI).
- Internal Proximitor Sensor: Rated for continuous operation between -51°C to +100°C (-60°F to +212°F).
- Probe Tip: Constructed from robust PPS capable of managing structural machinery temperatures spanning -35°C to +200°C.
- Simplified Field Wiring: Field multi-conductor cables connect directly between the plant monitor/control system and the terminal block inside the PROXPAC assembly, cutting out extension cable layout steps.
- Mounting & Engagement: Requires a standard 3/4-14 NPT mechanical mounting thread port. To maintain optimal performance, avoid exceeding a structural thread engagement length of 1.5 times the nominal thread diameter to prevent physical binding.
- Target Cross-Talk Minimization: Ensure the 8 mm probe tip maintains a safe distance from internal machine counterbores or neighboring probes. Maintain a physical tip separation distance of at least 40 mm for axial layouts, and 38 mm for radial vibration tracking to limit signal interference below 50 mV.
- System Power Integration: Requires a standard negative power supply voltage ranging from -17.5 Vdc to -26 Vdc under direct setups. For deployments utilizing safety barriers or galvanic isolators, a power feed of -23 Vdc to -26 Vdc is necessary.