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Bently Nevada 330101-00-24-10-02-05 3300 XL 8 mm Proximity Probe

The Bently Nevada 330101-00-24-10-02-05, also cataloged as the 330101 3300 XL 8 mm Proximity Probe, operates as a dedicated eddy-current sensing element for radial and axial shaft displacement measurement within Bently Nevada 3300 monitoring systems.

Hardware Specifications

Parameter	Specification
Model Brand	Bently Nevada
Origin	USA
Weight	0.05 kg
Dimensions	1.5 x 1.3 x 116 cm
Operating Temp	-40 to +120 degC
Power Consumption	Passive sensor, no external power
Thread Type	3/8-24 UNF
Unthreaded Length	0.0 in
Overall Case Length	2.4 in
Total Length	1.0 m (3.3 ft)
Connector Type	Miniature coaxial ClickLoc connector
Agency Approvals	CSA, ATEX, IECEx

Eddy-Current Probe Scaling and Gap Voltage Validation

Probe scale factor is factory calibrated at 7.87 mV/μm (200 mV/mil) ±5% across the linear range. Target gap voltage for installation verification is -10.0 VDC relative to the driver’s internal reference. Rotor dynamic measurements require maintaining probe clearance within the linear region to prevent signal saturation or cross-talk interference between adjacent probes.

Frequently Asked Questions

Q: Can this probe be used with 3300 XL extension cables longer than 5 meters?

A: No. Total system length must not exceed the specified maximum cable run to maintain impedance matching and signal integrity.

Q: Is hot-swapping supported during machinery operation?

A: No. System power should be removed before connecting or disconnecting the probe assembly to avoid transient overvoltages.

Q: What is the minimum bend radius for the coaxial cable?

A: Maintain a bend radius of at least 25 mm to prevent dielectric deformation and signal loss.

Field Installation Guidelines

Install probe tip perpendicular to the target surface with full thread engagement into the mounting bracket. Use proper torque to secure the probe without inducing mechanical stress on the tip. Ground the shield of the coaxial cable to the monitor chassis earth terminal only at one end to minimize ground loops. Route signal cables separately from high-voltage power wiring to reduce electromagnetic interference. Verify gap voltage after installation using a calibrated voltmeter referenced to the monitor’s common.

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