Description

Bently Nevada 330104-00-03-10-02-00 3300 XL 8 mm Reverse Mount Proximity Probe 

The Bently Nevada 330104-00-03-10-02-00, also cataloged as the 330104 3300 XL 8 mm Reverse Mount Proximity Probe, operates as a dedicated hardware component for eddy-current displacement measurement and rotor position monitoring within Bently Nevada TSI monitoring systems.

Hardware Specifications

Parameter	Specification
Model	330104-00-03-10-02-00
Brand	Bently Nevada
Product Type	3300 XL 8 mm Reverse Mount Proximity Probe
Origin	USA
Dimensions	30 mm case length, 1.0 meter cable length, 8.0 mm tip diameter
Operating Temp	-52 deg C to +177 deg C
Power Consumption	Passive probe element, powered by compatible proximity transducer system
Transducer Type	Eddy Current Non-Contacting Proximity Transducer
Measurement Range	2.0 mm linear range, operating range 0.25 mm to 2.25 mm
Scale Factor	7.87 V/mm nominal, 200 mV/mil nominal
Frequency Response	0 to 10 kHz, +0/-3 dB
Thread Type	M10 x 1 metric thread
Unthreaded Length	0 mm
Case Material	AISI 303 or 304 stainless steel
Tip Material	Polyphenylene sulfide (PPS)
Cable Insulation	Fluoroethylene propylene (FEP)
Connector Type	Miniature coaxial ClickLoc connector, standard cable
Pressure Capability	Differential pressure sealing between probe tip and case, typically up to 3.4 bar / 50 psi
Agency Approval	Standard configuration, no approval option

Eddy-Current Scaling and Rotor Dynamics Monitoring

The 330104 series uses eddy-current sensing technology to convert shaft displacement into proportional electrical signals. The probe provides a nominal scale factor of 7.87 V/mm, allowing compatible Bently Nevada proximity systems to evaluate shaft position and vibration amplitude.

Additionally, the probe output supports rotor dynamics analysis by providing continuous displacement information for vibration monitoring, axial position measurement, and mechanical clearance evaluation. The system requires correct gap voltage validation, where a typical operating target is approximately -10 VDC at the transducer output for proper measurement range alignment.

The reverse mount construction provides pressure sealing between the probe tip and housing interface. Therefore, the installation configuration supports applications requiring isolation between the sensing surface and mounting environment.

Frequently Asked Questions

Q: What measurement principle does the 330104-00-03-10-02-00 use?
A: The probe uses an eddy-current sensing principle to measure shaft displacement without mechanical contact between the probe tip and rotating target.

Q: Does the probe require direct power input?
A: No. The probe operates as part of a complete proximity transducer system and receives excitation from the compatible Bently Nevada signal conditioner.

Q: What installation factors affect measurement accuracy?
A: Proper thread engagement, probe gap setting, cable routing, shielding practice, and correct gap voltage validation affect signal quality and measurement accuracy.

Field Installation Guidelines

• Install the M10 x 1 threaded probe body with correct mechanical alignment to maintain the specified sensing gap.
• Verify the probe tip faces the target shaft surface without physical contact during all operating conditions.
• Route the coaxial cable away from high-current power conductors to reduce electromagnetic interference.
• Connect cable shielding according to the monitoring system grounding requirements.
• Confirm the transducer output gap voltage before commissioning. A typical Bently Nevada setup uses approximately -10 VDC as the nominal target gap voltage.
• Avoid sharp cable bending near the ClickLoc connector to maintain cable integrity.
• Check mechanical mounting tightness and pressure sealing requirements before equipment startup.

Specifications

• Brand: Bently Nevada

Advantages

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