Description

Bently Nevada 330101-37-57-10-02-05 3300 XL 8 mm Probe

Configured for eddy-current proximity measurement in the Bently Nevada 3300 XL Transducer System, the Bently Nevada 330101-37-57-10-02-05 (3300 XL 8 mm Probe) provides direct physical displacement sensing for rotating machinery shaft position monitoring.

Hardware Specifications

Parameter	Specification
Brand	Bently Nevada
Origin	USA
Weight	0.08 kg
Dimensions	113 x 2 x 1.5 cm
Operating Temp Range	-35 degC to +177 degC
Power Consumption	Passive device; powered via driver module
Probe Tip Diameter	8 mm
Thread Type	3/8-24 UNF
Unthreaded Length	3.7 in
Overall Case Length	5.7 in
Total Cable 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

The probe’s linear range is factory-calibrated against its target material, with scaling factors defined in mV/μm. Gap voltage validation targets -10 VDC when installed on standard steel shafts, ensuring correct proximity driver bias. Rotor dynamics measurements require verification of cross-talk suppression between adjacent probes to prevent signal contamination in multi-channel TSI configurations.

Frequently Asked Questions

Q: Is the 330101-37-57-10-02-05 probe hot-swappable?

A: No. The probe must be disconnected from the driver before removal or installation to avoid transient voltage spikes damaging the conditioning electronics.

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

A: Maintain a minimum bend radius of 25 mm to prevent coaxial impedance changes that affect measurement accuracy.

Q: Does the probe require recalibration after cable replacement?

A: Yes. Any change in cable length or type requires full system recalibration to maintain specified linearity error limits.

Field Installation Guidelines

Mount the probe using the supplied thread engagement of at least five full turns into the machine case. Ensure the tip is positioned within the calibrated measuring range relative to the shaft surface. Use continuous shield grounding at the driver end only to prevent ground loops. Avoid routing the probe cable parallel to high-voltage AC conductors; maintain at least 150 mm separation. Verify gap voltage with a multimeter before energizing the monitoring system.

Specifications

• Brand: Bently Nevada

Advantages

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