Description

Bently Nevada 330880-16-00-075-00-02 PROXPAC XL Proximity Transducer Assembly

The Bently Nevada 330880-16-00-075-00-02, also cataloged as the 330880 PROXPAC XL Proximity Transducer Assembly, operates as a dedicated hardware component for shaft vibration, axial position, and rotational speed measurement within Bently Nevada mechanical monitoring systems.

Hardware Specifications

Parameter	Specification
Model	330880-16-00-075-00-02
Brand	Bently Nevada
Product Type	PROXPAC XL Proximity Transducer Assembly
Origin	USA
Weight	Approximately 1.44 kg
Dimensions	Integrated probe assembly with 75 mm penetration length, 3/4-14 NPT mounting thread
Operating Temp	-52 deg C to +100 deg C
Power Consumption	Requires -17.5 VDC to -26 VDC without barrier; -23 VDC to -26 VDC with barrier
Probe Type	3300 XL 8 mm Eddy Current Proximity Probe
Linear Range	0.25 mm to 2.3 mm
Recommended Gap Setting	1.27 mm
Scale Factor	7.87 V/mm (200 mV/mil) +/-5%
Probe DC Resistance	50 ohm nominal
Output Resistance	50 ohm
Frequency Response	0 Hz to 10 kHz (+/-3 dB)
Housing Material	Polyphenylene Sulfide (PPS) glass and conductive fiber matrix
Ingress Protection	IP66 / Type 4X
Humidity Limit	0% to 95% non-condensing

Eddy-Current Measurement and Rotor Dynamics Monitoring

The 330880 PROXPAC XL assembly integrates the probe, extension cable, and Proximitor sensor into one field-mounted enclosure. Therefore, the system reduces external wiring requirements while maintaining the electrical characteristics of the 3300 XL proximity measurement technology.

The eddy-current probe scaling provides a 200 mV/mil output sensitivity for shaft displacement measurement. In addition, the recommended 1.27 mm gap setting allows operators to validate probe operating position through gap voltage monitoring. The system supports rotor dynamics analysis by measuring shaft vibration and axial movement signals from rotating equipment.

The integrated Proximitor electronics maintain signal conditioning performance and support direct connection to compatible Bently Nevada monitoring platforms. Furthermore, the conductive fiber housing material reduces static accumulation during field operation.

Frequently Asked Questions

Q: What measurement signals can the 330880-16-00-075-00-02 provide?
A: The assembly measures non-contact shaft displacement signals used for vibration monitoring, axial position measurement, and rotational speed detection.

Q: Does this model include a separate external Proximitor module?
A: No. The PROXPAC XL design integrates the probe, extension cable, and Proximitor sensor inside the same field housing.

Q: What mounting interface does this configuration use?
A: The 330880-16-00-075-00-02 configuration uses a 3/4-14 NPT mounting thread and includes no additional fittings.

Field Installation Guidelines

Install the PROXPAC XL assembly with correct mechanical alignment between the probe tip and the monitored shaft surface. Maintain the specified probe gap position before commissioning the vibration monitoring loop.

Use shielded signal wiring according to the monitoring system installation requirements. Connect cable shielding and grounding points according to site electrical practices to reduce electromagnetic interference.

Verify the probe gap voltage before operation. The installed probe position should allow proper electrical output scaling and stable shaft displacement measurement.

Avoid routing proximity signal cables together with high-current power cables. Separate signal paths from sources of electrical noise to maintain measurement integrity.

Confirm that the 3/4-14 NPT mounting connection is mechanically secured and that the enclosure maintains its IP66 / Type 4X protection after installation.

Specifications

• Brand: Bently Nevada

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems