Description

Bently Nevada 330103-00-07-20-02-CN 3300 XL 8 mm Proximity Probe

Configured for eddy-current displacement measurement in the 3300 XL Eddy Current Transducer System, the Bently Nevada 330103-00-07-20-02-CN (330103 3300 XL 8 mm Proximity Probe) provides direct physical measurement of shaft position and vibration movement through a non-contact sensing circuit.

Hardware Specifications

Parameter	Specification
Model	330103-00-07-20-02-CN
Brand	Bently Nevada
Product Type	3300 XL 8 mm Proximity Probe
Origin	USA
Dimensions	Overall case length: 70 mm; Total length: 2.0 m
Operating Temp	-51 deg C to +177 deg C
Power Consumption	Powered by compatible proximity system driver; probe passive sensing element
Thread Type	M10x1 metric thread
Probe Construction	Without armor casing
Probe Tip Material	Polyphenylene sulfide (PPS)
Probe Case Material	AISI 304 stainless steel
Cable Type	Standard 75 ohm coaxial cable with CableLoc design
Cable Pull Strength	330 N
Connector Type	Gold-plated miniature coaxial ClickLoc connector
Linear Range	2.0 mm (80 mils)
Measurement Starting Point	0.25 mm (10 mils) from target
Average Scale Factor	7.87 V/mm nominal
Target Material	AISI 4140 steel
Frequency Response	0 Hz to 10 kHz (+0, -3 dB)
Humidity Rating	100% condensing, non-submerged when properly sealed
Approval Option	CN country-specific approval

Eddy-Current Measurement and Rotor Dynamics Characteristics

The 330103-00-07-20-02-CN uses eddy-current probe scaling to convert shaft displacement into proportional electrical output signals. The probe system measures dynamic shaft movement and static position changes through the interaction between the probe tip electromagnetic field and the conductive target surface.

Furthermore, the probe output requires gap voltage validation during commissioning. Bently Nevada proximity systems typically verify the probe operating point near the -10 VDC target region to confirm correct physical installation and signal range.

The probe supports rotor dynamics analysis by providing vibration displacement data from rotating shafts. Therefore, correct probe gap setting, target material compatibility, and cable routing directly affect measurement accuracy.

The miniature coaxial ClickLoc connector and CableLoc design maintain signal integrity by reducing mechanical cable movement influence. In addition, proper installation practices help reduce signal interference and cross-talk effects in multi-probe monitoring arrangements.

Frequently Asked Questions

Q: What measurement principle does the 330103-00-07-20-02-CN use?
A: The probe uses an eddy-current sensing principle to measure the distance between the probe tip and a conductive rotating shaft surface. The system converts displacement changes into proportional electrical signals.

Q: What cable and connector configuration does this probe include?
A: This model uses a 2.0 m standard 75 ohm coaxial cable with a miniature coaxial ClickLoc connector and CableLoc retention design.

Q: What target material is required for calibration?
A: The specified target material is standard AISI 4140 steel. Calibration values may change when different conductive target materials are used.

Field Installation Guidelines

• Install the probe with the M10x1 metric thread connection according to the mechanical mounting requirements of the monitored machine.
• Maintain the recommended probe gap position before final system calibration.
• Verify the electrical gap voltage during commissioning. Bently Nevada systems normally validate operation near the -10 VDC target range.
• Route the coaxial cable away from high-current power conductors and strong electromagnetic interference sources.
• Ensure the cable shielding and connector installation follow the monitoring system grounding requirements.
• Avoid sharp cable bending points to prevent mechanical stress on the coaxial cable assembly.
• Confirm that the probe tip faces the correct shaft target surface and maintains proper alignment with the measurement axis

Specifications

• Brand: Bently Nevada

Advantages

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