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Bently Nevada 330104-00-22-10-02-05 3300 XL 8 mm Proximity Probe

Configured for non-contact shaft displacement measurement in the Bently Nevada 3300 XL Proximity Transducer System, the Bently Nevada 330104-00-22-10-02-05 (330104 3300 XL 8 mm Proximity Probe) provides direct eddy-current sensing for vibration and axial position monitoring.

Hardware Specifications

Parameter	Specification
Model	330104-00-22-10-02-05
Brand	Bently Nevada
Product Type	3300 XL 8 mm Eddy Current Proximity Probe
Origin	USA
Weight	Approx. 0.16 kg
Dimensions	Case length: 220 mm; total length: 1.0 m
Operating Temp	-52 deg C to +177 deg C
Power Consumption	Supplied by compatible 3300 XL Proximitor Sensor system
Probe Diameter	8 mm
Thread Type	M10 x 1 metric thread
Armor Type	Stainless steel flexible armor
Cable Type	75 ohm triaxial FEP insulated probe cable
Connector Type	Miniature coaxial ClickLoc connector
Tip Material	Polyphenylene sulfide (PPS)
Case Material	AISI 303/304 stainless steel
Linear Range	2.0 mm (80 mils), operating range from 0.25 mm to 2.25 mm
Scale Factor	7.87 V/mm (200 mV/mil) nominal
Target Material	AISI 4140 steel
Pressure Seal	Viton O-ring between probe tip and case

Eddy-Current Measurement and Rotor Dynamics Characteristics

The 330104-00-22-10-02-05 uses an eddy-current sensing principle to convert shaft displacement into electrical signals. The probe maintains a nominal scale factor of 7.87 V/mm and operates with compatible 3300 XL Proximitor Sensors for vibration and position measurements.

The probe design supports rotor dynamics analysis by providing proportional displacement feedback from rotating shafts. Therefore, the system can evaluate radial vibration, axial position, and shaft movement behavior through continuous gap measurement.

The probe output depends on the physical gap between the probe tip and the conductive target. During installation, technicians validate the probe gap voltage to confirm the measurement position, with typical Bently Nevada systems using -10 VDC as the target reference condition for proper operating gap verification.

The armored construction reduces mechanical damage risk in industrial installations, while the ClickLoc connector provides consistent electrical connection between the probe cable and monitoring electronics.

Frequently Asked Questions

Q: What measurement signals does the Bently Nevada 330104-00-22-10-02-05 provide?
A: The probe provides non-contact displacement signals used for shaft vibration, radial position, axial position, and rotor movement monitoring through a compatible 3300 XL Proximitor Sensor.

Q: Does this probe require special calibration before operation?
A: No. The probe uses the standard 3300 XL 8 mm probe scaling and operates with compatible Bently Nevada Proximitor Sensors without custom bench calibration when installed with the specified target material.

Q: How should the probe gap be verified during installation?
A: Technicians verify the operating gap through the Proximitor Sensor output voltage. Bently Nevada installations commonly use -10 VDC as the reference target for correct probe gap positioning.

Field Installation Guidelines

• Install the probe with the M10 x 1 threaded section fully engaged according to the mechanical assembly requirements.
• Maintain proper probe tip alignment with the rotating shaft surface to prevent measurement errors caused by angular offset.
• Route the armored cable away from high-current power conductors to reduce electrical interference.
• Connect the cable shield and grounding path according to the Bently Nevada monitoring system installation requirements.
• Verify the probe gap voltage after mechanical installation before commissioning the vibration monitoring channel.
• Confirm that the shaft material matches the calibration target requirements, typically AISI 4140 steel or an equivalent conductive target.

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