Description

Bently Nevada 330101-00-43-15-02-05 3300 XL 8 mm Proximity Probe

Configured for non-contacting vibration and displacement measurements in Machinery Protection Systems, the Bently Nevada 330101-00-43-15-02-05 (330101 3300 XL 8 mm Proximity Probe) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

• 330101: 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor
• 00: 0.0 in minimum unthreaded length
• 43: 4.3 in minimum case length
• 15: 1.5 meter (4.9 feet) total length option
• 02: Miniature coaxial ClickLoc connector, standard cable
• 05: CSA, ATEX, IECEx agency approval option

Hardware Specifications

Parameter	Specification
Model	330101-00-43-15-02-05
Brand	Bently Nevada
Origin	USA
Weight	0.2 kg
Dimensions	58.5 x 1.5 x 1.5 cm (Estimated shipping size)
Thread Configuration	3/8-24 UNF
Unthreaded Length	0.0 in
Case Length	4.3 in
Total Length	1.5 meter (4.9 feet)
Connector Type	Miniature coaxial ClickLoc
Cable Type	Standard cable without armor
Operating Temperature	-51 degC to +177 degC (Typical probe rating)
Power Consumption	Driven externally via Proximitor Sensor (-24 VDC system)
Agency Approvals	CSA, ATEX, IECEx

Eddy-Current Probe Calibration and Gap Voltage Validation

The probe utilizes eddy-current technology to generate a magnetic field over the target surface. Changes in the gap distance between the probe tip and the target modify the circuit impedance. To maintain accurate scale factors (typically 7.87 V/mm or 200 mV/mil), gap voltage validation must be performed during installation. Setting the physical mechanical gap to achieve a baseline target of -10 VDC ensures the sensor operates within its verified linear range against a standard AISI 4140 steel target.

Frequently Asked Questions

Q: Can this probe be directly connected to a control system analog input card without a Proximitor Sensor?

A: No. The probe behaves purely as an inductive component within an RF circuit. It requires the high-frequency conditioning provided by a matching 3300 XL Proximitor Sensor to convert impedance variations into a usable analog voltage signal.

Q: How do cable length mismatches impact the performance of this 1.5 meter probe?

A: The total electrical length of the probe plus the extension cable must match the tuning profile of the Proximitor Sensor (typically 5.0 meter or 9.0 meter configurations). Connecting this 1.5 meter probe to an incorrect extension cable length alters the system impedance, causing calibration errors and scaling deviations.

Field Installation Guidelines

• Mechanical Clearance: Maintain a minimum clearance of one probe tip diameter around the sensor tip from surrounding borehole metal to prevent side-loading interference and cross-talk.
• Torque Limits: Do not exceed standard physical torque limits when securing the 3/8-24 UNF thread housing into the machine case to avoid casing distortion.
• Cable Routing: Route the miniature coaxial cable through dedicated conduit or cable trays isolated from high-voltage AC lines to minimize electromagnetic noise coupling.
• Connector Protection: Ensure the ClickLoc connector is clean and dry before mating. Use silicone self-coupling tape or designated connector protectors to isolate the connection from moisture and oil in the machine environment.

Specifications

• Brand: Bently Nevada

Advantages

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