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Bently Nevada 330104-00-06-20-01-00 3300 XL 8 mm Proximity Probe

The Bently Nevada 330104-00-06-20-01-00, also cataloged as the 330104 3300 XL 8 mm Proximity Probe, operates as a dedicated hardware component for eddy-current displacement measurement within the 3300 XL Eddy Current Proximity Transducer System. The probe measures shaft vibration and position through non-contact gap sensing.

Hardware Specifications

Parameter	Specification
Model	330104-00-06-20-01-00
Brand	Bently Nevada
Product Type	Proximity Sensors
Series	3300 XL 8 mm Proximity Probe
Origin	USA
Dimensions	M10 x 1 threaded case, 60 mm case length, 2.0 m cable length
Operating Temp	-51 deg C to +177 deg C
Power Consumption	Supplied by compatible 3300 XL Proximitor sensor; probe has no independent power input
Target Material	AISI 4140 steel standard calibration target
Measurement Principle	Eddy-current non-contact displacement measurement
Linear Range	2.0 mm (80 mils)
Gap Range	Approx. 0.25 mm to 2.25 mm (10 mils to 90 mils)
System Sensitivity	7.87 V/mm (200 mV/mil) nominal
Linearity	Within +/- 5% of nominal scale factor
Thread Type	M10 x 1 metric thread
Unthreaded Length	0 mm
Cable Type	Standard flexible coaxial cable, unarmored
Connector Type	Miniature coaxial ClickLoc connector with connector protector
Case Material	Stainless steel
Tip Material	Polyphenylene sulfide (PPS)

Eddy-Current Measurement and Rotor Dynamics Characteristics

The 3300 XL 8 mm proximity probe uses eddy-current scaling to convert shaft displacement into proportional electrical output signals. Therefore, the probe maintains a defined relationship between target gap distance and output voltage for vibration and position monitoring.

The probe operates with a nominal sensitivity of 7.87 V/mm and supports dynamic shaft movement measurement through compatible Proximitor sensor modules. Additionally, technicians validate installation conditions through gap voltage checks, with standard systems using -10 VDC target gap references for correct probe positioning.

The probe design incorporates TipLoc and CableLoc bonding technology to maintain mechanical connection strength between the sensing tip and cable assembly. Furthermore, the system structure reduces signal interference effects and supports accurate rotor dynamics analysis in rotating equipment monitoring applications.

Frequently Asked Questions

Q: Does the 330104-00-06-20-01-00 probe require individual calibration with the Proximitor sensor?
A: No. The 3300 XL system supports probe, extension cable, and Proximitor sensor interchangeability without custom matching calibration.

Q: What signal measurement method does this probe use?
A: The probe uses an eddy-current measurement principle to detect shaft displacement by monitoring changes in the electrical field between the probe tip and target surface.

Q: What installation condition affects measurement accuracy?
A: Probe gap setting, target material condition, cable routing, and proper connector installation directly affect measurement accuracy.

Field Installation Guidelines

• Install the probe with the M10 x 1 threaded section securely mounted according to the mechanical assembly requirements.
• Verify the probe tip-to-target gap before operation and confirm the expected gap voltage using the connected Proximitor sensor.
• Route the coaxial cable away from high-current conductors and strong electromagnetic interference sources.
• Avoid sharp cable bending near the ClickLoc connector to prevent mechanical stress on the cable termination.
• Maintain proper grounding practices for associated monitoring system components to reduce electrical noise.
• Confirm that the target surface material matches the specified AISI 4140 calibration condition before applying standard scaling values.

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