Bently Nevada 330104-00-04-10-02-00 3300 XL 8 mm Proximity Probe

Configured for shaft vibration and position measurement in machinery protection systems, the Bently Nevada 330104-00-04-10-02-00 (3300 XL 8 mm Proximity Probe) provides direct physical/electrical execution. The eddy-current sensing mechanism generates an alternating magnetic field at the probe tip to observe changes in distance between the tip and the observed conductive target surface without physical contact.

Suffix Breakdown & Model Matrix

• Unthreaded Length Option (-00): 0 mm unthreaded length.

• Overall Case Length Option (-04): 40 mm overall case length.

• Total Length Option (-10): 1.0 metre (3.3 feet) total cable length.

• Connector and Cable-Type Option (-02): Miniature coaxial ClickLoc connector, standard cable.

• Agency Approval Option (-00): Not required.

Hardware Specifications

Mechanical Monitoring & Eddy-Current Probe Scaling

The 3300 XL 8 mm proximity probe system delivers a standard scale factor of 7.87 V/mm (200 mV/mil) when paired with a matching 3300 XL Proximitor Sensor and extension cable. Proper installation requires gap voltage validation to set the baseline physical offset, targeting a nominal output of -10 VDC during static shaft setup (corresponding to the midpoint of the linear range). The high-frequency magnetic field generated by the coil minimizes cross-talk suppression issues when probes are mounted at standard 90-deg orientation angles, provided minimum physical separation distances are strictly maintained to prevent mutual inductive interference in complex rotor dynamics applications.

Frequently Asked Questions

Q: How is the physical gap voltage set during field installation?

A: Mount the probe mechanically and adjust its physical position relative to the target surface while observing the DC voltage output of the connected Proximitor Sensor. Adjust until the output reaches the target baseline of -10 VDC, corresponding to the center of the linear voltage range.

Q: What precautions should be taken with the ClickLoc coaxial connector?

A: Ensure the coaxial connector is securely latched to prevent signal attenuation or intermittent contact. When installing in harsh or wet environments, protect the connector junction with silicone tape or dedicated protective boot assemblies to prevent moisture ingress and ground loops.

Field Installation Guidelines

• Maintain a minimum probe-to-probe physical spacing to prevent cross-talk and mutual inductive interference between adjacent sensors.

• Verify target material properties; standard factory calibration assumes 4140 AISI steel targets unless customized signal conditioning is utilized.

• Observe minimum bend radius requirements for the 1.0 m coaxial cable to prevent physical damage to the internal shielding and dielectric core.

• Ensure the probe case is grounded properly through mechanical mounting while keeping the coaxial cable shield isolated from intermediate conduit grounds.