Bently Nevada 330880-00-00-000-03-02 PROXPAC Proximity Transducer Assembly
Configured for non-contact shaft vibration and position measurement in rotating machinery systems, the Bently Nevada 330880-00-00-000-03-02 (330880 PROXPAC Proximity Transducer Assembly) provides integrated eddy-current transducer functionality within a sealed field-mount housing. The assembly combines proximity measurement capability with industrial environmental protection for machinery monitoring applications.
Suffix Breakdown & Model Matrix
The model 330880-00-00-000-03-02 is a configured version of the PROXPAC proximity transducer family.
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330880: PROXPAC XL Proximity Transducer Assembly
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00: No probe included, Proximitor Sensor without approvals
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00: No standoff adapter
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000: 0 mm probe penetration
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03: One 3/4-14 NPT fitting, reducer, and plugs
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02: 3/4-14 NPT mounting thread
Hardware Specifications
| Parameter |
Specification |
| Model |
330880-00-00-000-03-02 |
| Brand |
Bently Nevada |
| Product Type |
PROXPAC Proximity Transducer Assembly |
| Series |
PROXPAC XL |
| Supply Voltage |
-17.5 VDC to -26 VDC |
| Supply Voltage (With Barriers) |
-23 VDC to -26 VDC |
| Maximum Current Consumption |
12 mA |
| Linear Measurement Range |
0.25 mm to 2.3 mm |
| Scale Factor |
7.87 V/mm (200 mV/mil) |
| Recommended Gap |
1.27 mm (50 mils) |
| Frequency Response |
0 Hz to 10 kHz |
| Output Resistance |
50 Ohm |
| Probe Temperature Range |
-51 deg C to +177 deg C |
| Housing Temperature Range |
-51 deg C to +100 deg C |
| Environmental Rating |
Type 4X, IP66 |
| Housing Material |
Glass-filled PPS |
Eddy-Current Measurement Performance
The PROXPAC assembly utilizes eddy-current sensing technology to measure the distance between the probe tip and a conductive target. The system provides a scale factor of 7.87 V/mm and operates across a linear range of 0.25 mm to 2.3 mm. A recommended gap voltage target corresponding to a 1.27 mm mechanical gap is commonly used during commissioning and calibration procedures.
Frequently Asked Questions
Q: What is the recommended operating gap for measurement setup?
A: The recommended gap setting is 1.27 mm (50 mils).
Q: What frequency range can the assembly monitor?
A: The specified frequency response is from 0 Hz to 10 kHz.
Q: Is the assembly suitable for outdoor installations?
A: Yes. The enclosure is rated Type 4X and IP66 for protection against dust and water ingress.
Field Installation Guidelines
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Install the assembly using the specified 3/4-14 NPT mounting provisions.
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Route transducer wiring separately from high-voltage power cables.
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Verify target material and shaft dimensions meet transducer requirements.
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Maintain shield continuity and proper grounding practices.
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Perform gap voltage verification before machinery startup.
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