Description

Bently Nevada 330101-00-39-15-02-05 3300 XL 8 mm Proximity Probe

The Bently Nevada 330101-00-39-15-02-05, also cataloged as the 330101 proximity probe, operates as a dedicated hardware component for radial and axial displacement measurement within the 3300 XL eddy-current transducer system. It interfaces directly with the Proximitor sensor to generate a linear DC voltage proportional to target distance.

Suffix Breakdown & Model Matrix

Option Code	Description	Specification
330101	Base Model	3300 XL 8 mm Probe, 3/8-24 UNF thread, no armor
00	Unthreaded Length	0.0 in (fully threaded case)
39	Overall Case Length	3.9 in (~99 mm)
15	Total Length Option	1.5 m (~4.9 ft)
02	Connector & Cable Type	Miniature coaxial ClickLoc connector, standard cable
05	Agency Approvals	Multiple approvals (ATEX, IECEx, CSA, etc.)

Hardware Specifications

Parameter	Specification
Model Brand	Bently Nevada
Origin	United States
Weight	~0.15 kg
Dimensions	99 mm case length, 8 mm tip diameter
Operating Temp	-51 degC to +177 degC
Power Consumption	Passive device; powered via Proximitor sensor supply
Scale Factor	7.87 V/mm (200 mV/mil)
Linear Range	2.0 mm (from ~0.25 mm standoff)
Frequency Response	0 to 10 kHz
Probe Tip Material	Polyphenylene sulfide (PPS)
Probe Case Material	AISI 303/304 stainless steel
Cable Jacket Material	FEP insulated coaxial
Thread Type	3/8-24 UNF-2A
Connector Type	Gold-plated ClickLoc coaxial
Minimum Bend Radius	25.4 mm

Eddy-Current Probe Scaling and Gap Voltage Validation

Probe scaling follows the 7.87 V/mm sensitivity factor when paired with a standard 3300 XL Proximitor sensor. Calibration requires setting the gap voltage to a nominal -10 VDC at the installed mechanical clearance. This value corresponds to the midpoint of the linear range, ensuring correct rotor displacement interpretation during machine operation. Cross-talk suppression is achieved through shielded coaxial cabling and defined minimum separation distances between multiple probes in close proximity.

Frequently Asked Questions

Q: Can the 330101-00-39-15-02-05 be replaced without recalibrating the system?

A: Yes. The 3300 XL 8 mm probes are fully interchangeable within the same system configuration without requiring recalibration if the replacement probe matches the original specification.

Q: What is the maximum allowable probe cable bend radius during installation?

A: Maintain a minimum bend radius of 25.4 mm to prevent mechanical stress on the coaxial cable and maintain signal integrity.

Q: Does this probe require separate power wiring?

A: No. Power is supplied via the connected Proximitor sensor; no independent power connection is required.

Field Installation Guidelines

Install the probe using proper anti-seize compound on the threads. Torque to manufacturer-recommended values and ensure at least five full threads of engagement into the machinery housing. Ground the shield continuously to the system earth at one point only to avoid ground loops. Route the probe cable away from high-voltage or high-current conductors to minimize electromagnetic interference. Verify gap voltage after installation to confirm correct mechanical positioning relative to the target surface.

Specifications

• Brand: Bently Nevada

Advantages

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