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        330881-28-04-105-00-02

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The 330881-28-04-105-00-02 is a Bently Nevada PROXPAC XL self‑contained proximity probe assembly with integrated Proximitor sensor, PPS housing, IP66 rating, and 2 mm linear range.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 330881-28-04-105-00-02

        • Manufacturer:
          Bently Nevada
        • Part Number:
          330881-28-04-105-00-02
        • Product Family:
          PROXPAC XL Proximity Transducer Assembly
        • Product Type:
          Proximity Transducer
        • Extension Cable:
          Not required (probe connects directly to Proximitor inside housing)
        • Probe Cable Length:
          1.0 meter
        • Protection Rating:
          IP66, Type 4X
        • Linear Range:
          2 mm (80 mils) (0.25 mm to 2.3 mm)
        • Incremental Scale Factor (ISF):
          7.87 V/mm (200 mV/mil) ±5% (0-45°C)
        • Recommended Gap:
          1.27 mm (50 mils)
        • Power Supply (without barriers):
          -17.5 Vdc to -26 Vdc
        • Maximum Field Wiring Length:
          305 meters (1,000 feet)
        • Output Resistance:
          50 Ω
        • Frequency Response:
          0 to 10 kHz, +0, -3 dB
        • Probe Temperature Range:
          -51°C to +177°C
        • Housing/Proximitor Temperature:
          -51°C to +100°C
        • Weight:
          1.25 kg
        • Estimated shipping dimensions:
          38.5x9x9.2cm
        • Tariff Code:
          8543902100
        • 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 Application Operating Environment Monitoring & Control

        Features:

        • Combines 3300 XL 8 mm probe, 1.0m cable, and Proximitor sensor in one IP66 housing; no separate extension cable or Proximitor enclosure needed.
        • Made of advanced thermoplastic with glass/conductive fibers; resists dust, water jets, and corrosion
        • 2 mm linear range (80 mils); 7.87 V/mm (200 mV/mil) scale factor; frequency response 0-10 kHz; field wiring up to 305 m.
        The 330881-28-04-105-00-02 revolutionizes proximity probe installation by integrating the 3300 XL 8 mm probe and the Proximitor sensor into a single housing. Traditional proximity systems require three separate components: a probe, an extension cable, and a Proximitor sensor mounted in a separate enclosure. This requires additional labor, more mounting space, and introduces multiple interconnection points that can fail. The PROXPAC XL eliminates the extension cable entirely – the probe’s 1.0m integral cable connects directly to the Proximitor inside the housing cover.

        The 330881-28-04-105-00-02 uses a housing made of Polyphenylene Sulfide (PPS), an advanced thermoplastic reinforced with glass and conductive fibers. This material provides exceptional chemical resistance, mechanical strength, and dimensional stability over a wide temperature range (-51°C to +100°C for the housing). The conductive fibers dissipate electrostatic charges, preventing static buildup that could affect sensitive Proximitor electronics. The housing is rated IP66 (IEC) and Type 4X (NEMA), meaning it is dust‑tight and protected against powerful water jets. This allows direct mounting in washdown areas, outdoor cabinets, and other severe environments without an additional protective enclosure.

        The 330881-28-04-105-00-02 provides the same measurement performance as the standard 3300 XL 8 mm system. The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target and extending to 2.3 mm (90 mils). The recommended gap is 1.27 mm (50 mils), which centers the shaft in the linear range and produces an output of approximately -10 Vdc. The incremental scale factor is 7.87 V/mm (200 mV/mil) ±5% over 0-45°C. Frequency response is 0 to 10 kHz (+0, -3 dB), even with up to 305 meters (1,000 feet) of field wiring.

        The 330881-28-04-105-00-02 Bently Nevada Proximity Transducer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

        Bently Nevada 330881-28-04-105-00-02 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 330881-28-04-105-00-02 Proximity Transducer Specs

        General

        • Manufacturer GE /Bently Nevada
        • Model 330881-28-04-105-00-02
        • Condition New Original ready stock
        • Product Family 330881-00-04-105-00-02,330881-05-04-105-00-02,330881-28-04-105-05-02
        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.
        • Radial Vibration: Monitoring the dynamic movement of a shaft within its bearings.
        • Axial Position (Thrust): Detecting shaft movement along its axis to prevent catastrophic internal contact.
        • Speed and Keyphasor: Measuring RPM and providing a timing reference for diagnostic phase analysis.
        • Target Machinery: Widely used on steam turbines, centrifugal compressors, large motors, and heavy-duty pumps utilizing fluid-film bearings.
        • Temperature Range: The probe tip can withstand temperatures from -51 °C to +177 °C (-60 °F to +350 °F).
        • Environmental Protection: The housing is rated IP66 and Type 4X, making it resistant to dust, powerful water jets, and corrosive chemical exposure.
        • Material Durability: The housing is made of glass-reinforced Polyphenylene Sulfide (PPS), which provides high impact resistance and prevents static electricity buildup. It is designed to endure oily, steamy, and chemically aggressive atmospheres.
        • Integrated Signal Conditioning: By housing the Proximitor sensor directly in the probe cap, the system reduces signal loss and susceptibility to noise compared to traditional split-component setups.
        • Standardized Output: It provides a linear voltage output proportional to the gap between the probe tip and the target (typically 200 mV/mil or 7.87 V/mm).
        • Self-Diagnostics: Compatible with the Bently Nevada 3500 Monitoring System, it supports "Not OK" status monitoring. If the sensor or internal wiring fails, the system identifies the fault to prevent false machine trips.
        Description
        The 330881-28-04-105-00-02 is a PROXPAC XL Proximity Transducer Assembly from Bently Nevada. It combines a 3300 XL 8 mm probe, a 1‑meter integral cable, and a Proximitor sensor in a single self‑contained PPS housing. This design eliminates the need for a separate extension cable and Proximitor enclosure.

        When using the 330881-28-04-105-00-02, engineers benefit from a completely integrated proximity probe system. The housing cover contains the Proximitor sensor, so field wiring connects directly between the monitor and the assembly. No extension cable is required between the probe and the Proximitor. This reduces installation complexity and potential failure points.

        The 330881-28-04-105-00-02 has a linear range of 2 mm (80 mils) with an incremental scale factor of 7.87 V/mm (200 mV/mil) at 0-45°C. Recommended gap setting is 1.27 mm (50 mils). The integrated probe has a 1‑meter cable length. The assembly operates with a power supply of -17.5 Vdc to -26 Vdc without barriers. 

        For legacy Bently Nevada system expansions, the 330881-28-04-105-00-02 provides a compact, rugged, self‑contained proximity transducer. It is ideal for applications where space is limited or where a separate Proximitor housing is impractical. The assembly has hazardous area approvals (Ex ia IIC T4/T5, Class I Zone 0/1). 
        Alternative Names
        330881-00-04-105-00-02 330881-01-04-105-00-02 330881-28-04-105-05-02 330881-28-04-105-06-02
        Technical notes
        The 330881-28-04-105-00-02 uses a 75 Ω triaxial cable between the probe and the integrated Proximitor. The probe cable length is fixed at 1.0 meter. No extension cable is permitted between the probe and the Proximitor.The housing is made of PPS with glass and conductive fibers. This material provides high mechanical strength and dissipates electrostatic charges.
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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.
        VIEW ALL FAQS
        Does 330881-28-04-105-00-02 require a separate Proximitor housing?
        No. The 330881-28-04-105-00-02 has the Proximitor sensor integrated into the housing cover. This self‑contained design eliminates the need for a separate Proximitor housing and extension cable, saving space and simplifying installation.
        How far can 330881-28-04-105-00-02 be from the monitor?
        The maximum field wiring length is 305 meters (1,000 feet) using 3‑conductor shielded triax cable. Frequency response is 0 to 10 kHz (+0, -3 dB) at this length. Longer runs may cause signal rolloff. Use 16-24 AWG tinned copper wire.
        What is the recommended gap for 330881-28-04-105-00-02?
        The recommended gap setting is 1.27 mm (50 mils) . This places the shaft at the center of the 2 mm (80 mil) linear range (0.25 mm to 2.3 mm). The corresponding output voltage is approximately -10 Vdc. Always verify with a voltmeter during installation.
        Does 330881-28-04-105-00-02 have hazardous area approvals?
        Yes. The PROXPAC XL is approved for Ex ia IIC T4/T5 (intrinsically safe) for Zone 0 and Class I Division 1 when installed with zener barriers or galvanic isolators per drawing 141092. Also approved for Zone 2/Division 2 without barriers per drawing 140979.

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