Description

Bently Nevada 330104-00-10-90-02-00 3300 XL 8 mm Proximity Probe

The Bently Nevada 330104-00-10-90-02-00, also cataloged as the 330104 3300 XL 8 mm Proximity Probe, operates as a dedicated hardware component for eddy-current shaft displacement measurement within the 3300 XL Transducer System. The probe converts the gap distance between the probe tip and conductive shaft target into proportional DC voltage signals for vibration and position monitoring.

Hardware Specifications

Parameter	Specification
Model	330104-00-10-90-02-00
Brand	Bently Nevada
Product Type	3300 XL 8 mm Eddy-Current Proximity Probe
Origin	USA
Dimensions	100 mm probe case length; M10 x 1 metric mounting thread
Operating Temp	-52 deg C to +177 deg C
Power Consumption	Passive sensing element; powered by compatible proximity system driver
Measurement Principle	Eddy-current non-contact displacement measurement
Linear Range	2.0 mm (80 mils), typically 0.25 mm to 2.25 mm gap range
Scale Factor	7.87 V/mm (200 mV/mil), +/- 6.5%
Output Range	-1 VDC to -17 VDC
Frequency Response	0 Hz to 10 kHz (+0, -3 dB)
Target Material Calibration	AISI 4140 steel
Probe Tip Material	Polyphenylene sulfide (PPS)
Probe Body Material	AISI 303/304 stainless steel
Cable Protection	Flexible AISI 302 stainless steel armor with FEP outer jacket
Cable Length	9.0 m
Connector Type	Gold-plated brass ClickLoc miniature coaxial connector
Agency Approval	Standard configuration, no additional approval

Eddy-Current Measurement and Rotor Dynamics

The 330104-00-10-90-02-00 uses eddy-current probe scaling to provide proportional voltage output according to shaft-to-tip gap variation. Therefore, the connected monitoring system can evaluate radial vibration, axial displacement, and rotor position changes through continuous electrical measurement.

The probe system uses gap voltage validation with typical -10 VDC target calibration conditions to verify the correct operating position between the probe tip and shaft surface. In addition, the stable linear response supports rotor dynamics analysis by providing displacement data for vibration waveform processing and phase reference evaluation.

The probe construction incorporates a hermetically sealed sensing tip and shielded coaxial connection design. As a result, the system reduces measurement interference caused by oil environments, mechanical movement, and electrical noise sources.

Frequently Asked Questions

Q: What measurement signals does the 330104-00-10-90-02-00 provide?
A: The probe provides a DC voltage output proportional to the shaft gap distance. The connected proximity transducer system converts this signal into vibration and position monitoring data.

Q: Can the probe measure both vibration and shaft position?
A: Yes. The eddy-current sensing principle allows the probe to measure dynamic shaft vibration signals and static shaft displacement positions.

Q: What installation factors affect measurement accuracy?
A: Correct probe gap setting, target material compatibility, cable routing, and proper shielding practices affect signal accuracy and system performance.

Field Installation Guidelines

1. Install the probe using the M10 x 1 metric mounting thread and maintain correct mechanical alignment with the monitored shaft surface.
2. Adjust the probe gap according to the compatible proximity system requirements. Verify the gap voltage before commissioning, with approximately -10 VDC commonly used as the reference operating point.
3. Route the armored cable away from high-current power cables, variable frequency drive outputs, and strong electromagnetic interference sources.
4. Connect the ClickLoc miniature coaxial connector securely and maintain clean contact surfaces during installation.
5. Ground cable shields according to the monitoring system installation manual to minimize electrical noise and signal interference.
6. Confirm the probe target surface condition before operation. The sensing target should match the calibrated material specification, typically AISI 4140 steel.

Specifications

• Brand: Bently Nevada

Advantages

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