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330881-28-07-155-03-02

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Bently Nevada 330881‑28‑07‑155‑03‑02 PROXPAC XL Proximity Transducer Assembly is a high‑precision, industrial‑grade proximity sensor assembly designed for condition monitoring of critical rotating machinery.
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Technical specifications for 330881-28-07-155-03-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330881-28-07-155-03-02
  • Product Family:
    PROXPAC XL Proximity Transducer Assembly
  • Probe Type:
    3300 XL 8 mm with multiple approvals
  • Standoff Adapter (B Dimension):
    70 mm
  • Probe Penetration Length:
    155 mm
  • Fittings Kit:
    One M20 fitting, two plugs
  • Mounting Thread:
    3/4-14 NPT
  • Input Voltage:
    −17.5 VDC to −26 VDC (non-explosion-proof)
  • Linear Range:
    0.25 mm to 2.3 mm (10 mils to 90 mils)
  • Weight:
    1.5 kg
  • Estimated shipping dimensions:
    37x9x8cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications
 

Features:

  • Interface Between the 330881‑28‑07‑155‑03‑02 Proxpac XL Proximity Transducer and 3300 XL System Modules
  • Combines Capability of Shaft Displacement and Vibration Sensing with EMI‑Resistant Signal Transmission
  • Operates in Conjunction with 3300 XL 8 mm Proximity Probes and Standard 3300 XL Monitor Modules
The 330881‑28‑07‑155‑03‑02 operates as a Proxpac XL Proximity Transducer assembly within the 3300 XL system, providing precise shaft displacement and vibration measurements to all connected monitor modules. It continuously converts the probe signal into a standardized output and transmits it through the interconnect cables to support reliable monitoring of rotating machinery. Seamless signal integrity is maintained under typical industrial operating conditions, while enhanced EMI‑resistant design ensures consistent performance in electrically noisy environments. The 330881‑28‑07‑155‑03‑02 incorporates improved mounting, environmental sealing, and probe length configuration compared to earlier Proximitor assemblies, enabling reliable operation in harsh industrial applications.

The 330881‑28‑07‑155‑03‑02 provides essential signal conditioning and measurement functions for the 3300 XL system, and is a critical component of the monitoring path, directly affecting accurate vibration and shaft displacement readings. One or more 330881‑28‑07‑155‑03‑02 transducer assemblies may be installed per monitored axis depending on the desired measurement configuration. The 330881‑28‑07‑155‑03‑02 mounts in standard sensor locations and interfaces seamlessly with 3300 XL monitor modules for reliable system operation.

For critical monitoring applications requiring dual sensor coverage, the 330881‑28‑07‑155‑03‑02 can be deployed alongside a second transducer per monitored axis to ensure redundant measurement reliability. In addition to standard single‑sensor operation, the redundant configuration performs automatic signal validation and failover. The dual‑sensor setup continuously compares outputs from both transducers using the 3300 XL system’s internal diagnostic circuitry. If the system detects that the primary transducer signal falls outside configured thresholds, it automatically switches to the secondary transducer as the active measurement source and logs an event in the System Event List.

The 330881-28-07-155-03-02 Bently Nevada Proxpac XL Proximity Transducer Assembly may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Interface Between the Universal AC Power Source and 3500 Rack Backplane
 
Bently Nevada 330881‑28‑07‑155‑03‑02 Proxpac XL Proximity Transducer Manuals, Datasheets, Drivers, 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 330881‑28‑07‑155‑03‑02 Proxpac XL Proximity Transducer Assembly Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 330881‑28‑07‑155‑03‑02
  • Condition New Original ready stock
  • Product Family 330103‑00‑15‑05‑01‑00, 330103‑00‑21‑10‑11‑CN ,330104‑01‑11‑10‑01‑00
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.
Description
The Bently Nevada 330881-28-07-155-03-02 Proximity Transducer is a high-precision displacement sensor designed for industrial machinery monitoring. It features a 3300 XL 8 mm probe with multiple approvals and delivers a linear output with an incremental scale factor of 7.87 V/mm (200 mV/mil) ±5%, over a linear range of 0.25 mm to 2.3 mm (10 mils to 90 mils). 

The transducer includes a standoff adapter (70 mm) and a fittings kit containing one M20 fitting and two plugs. Housed in polyphenylene sulfide (PPS) with Type 4X/IP66 ingress protection, it ensures reliable performance in demanding industrial environments. The sensor supports field wiring up to 305 meters (1,000 ft), making it suitable for long-distance monitoring of rotating equipment.

The transducer housing is engineered from durable materials and meets Type 4X/IP66 ingress protection standards, ensuring reliable performance in harsh industrial environments. The built‑in design allows direct field wiring to the monitor, eliminating the need for separate cable housings.

Typical applications include continuous vibration and position monitoring on turbines, compressors, and other rotating equipment to support predictive maintenance and improve machinery reliability.

Alternative Names
330881‑28‑07‑155‑03‑01 330881‑28‑07‑155‑03‑03 330103‑00‑15‑05‑01‑00
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the main application of this transducer 330881-28-07-155-03-02?
It is used for shaft displacement measurement and vibration monitoring in rotating machinery.
What type of 330881-28-07-155-03-02 output does it provide?
The sensor provides a linear output with an incremental scale factor of 7.87 V/mm (200 mV/mil) ±5%.
Can it operate in harsh industrial environments?
Yes, the PPS housing and Type 4X/IP66 ingress protection allow reliable operation in dusty, wet, or industrial conditions.

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