330901-00-10-10-02-00 Bently Nevada 3300 NSv Proximity Probe

Product Overview

The 330901-00-10-10-02-00 belongs to the Bently Nevada 3300 NSv (Near Side view) proximity transducer system. While the standard 8mm probes dominate large machinery, the NSv series is specifically engineered for "tight" applications where space is extremely limited or the target shaft diameter is small (less than 76 mm or 3 inches). It excels in monitoring centrifugal air compressors, small pumps, and refrigeration compressors where a standard probe would suffer from "side-view" interference from surrounding metal.

This eddy current sensor provides high-precision displacement and vibration data by generating a concentrated magnetic field. Its unique tip design allows it to maintain a linear output even when mounted in close proximity to machine shoulders or bearing housings. For reliability in high-speed, small-scale rotating equipment, the 3300 NSv system is the industry-standard choice for non-contact measurement.

Technical Configuration

The model 330901-00-10-10-02-00 utilizes a metric/imperial hybrid logic to define its physical dimensions and electrical interface.

Unthreaded Length (00)

The 00 option indicates a 0.0-inch unthreaded length. This means the 3/8-24 threads extend to the very tip of the probe, providing maximum engagement for mounting brackets and allowing for precise depth positioning.

Overall Case Length (10)

The 10 code specifies an 1.0-inch overall case length. This compact, short-body design is ideal for internal mounting where external clearance is restricted by machine guards or cooling lines.

Total Length (10)

The 10 designates a 1.0-meter (3.3 feet) total cable length. This pigtail length is designed to reach an external junction box or conduit entry where it connects to the NSv extension cable.

Connector and Cable (02)

This unit features the Miniature coaxial ClickLoc™ connector. This "snap-on" style interface provides a secure, vibration-resistant electrical path without the risk of over-tightening or cross-threading common with older SMA connectors.

Agency Approval (00)

The 00 suffix indicates No Option/Standard. This version is intended for general industrial use where specific regional explosion-proof certifications (like ATEX or NEPSI) are not required by local site regulations.

Technical Specifications

Engineering Advantages

The 3300 NSv series offers distinct mechanical advantages over standard 8mm or 5mm probes in specialized environments.

• Small Target Optimization: Specifically calibrated to handle the curvature of small-diameter shafts without the signal distortion typically caused by "fringe" magnetic fields.

• High Linearity: Despite its smaller footprint, the 330901 maintains a linear error of less than ±1%, ensuring that the vibration data transmitted to your PLC or 3500 Rack is hyper-accurate.

• Interference Rejection: The NSv design focuses the eddy current field tighter than standard probes, allowing it to be installed closer to counterbores and side walls without "seeing" the surrounding metal.

Installation & Maintenance Guide

Installing an NSv probe requires a delicate touch compared to larger industrial sensors.

Gap Voltage Setup

Connect the probe to the 3300 NSv Proximitor® Sensor. Adjust the probe position until the DC output reads approximately -10.0 VDC. This voltage represents the "Zero" or center-point of the 60-mil linear range.

Connector Protection

Always use a Connector Protector (heat-shrink or silicone sleeve) if the ClickLoc™ junction is located inside a bearing housing where it might be exposed to oil or moisture. Fluid ingress into the connector is the leading cause of "noisy" vibration signals.

Minimum Bend Radius

Ensure the coaxial cable has a bend radius no smaller than 25.4 mm (1.0 inch). Bending the cable too sharply can change the characteristic impedance of the line, leading to calibration errors in the displacement reading.

Technical FAQs

Q1: Can I use this NSv probe with a standard 3300 XL extension cable?

A1: No. The 3300 NSv system has a unique electrical profile. You must use it with a 3300 NSv Extension Cable and a 3300 NSv Proximitor®. Mixing components from the 3300 XL or 7200 series will result in incorrect sensitivity and non-linear data.

Q2: What is the primary difference between the 330101 (8mm) and this 330901 (NSv)?

A2: The 330901 is designed for small shafts and tight spaces. While the 8mm probe is the general-purpose choice, the NSv (Near Side view) is specifically for machines where the mounting hole is very close to a shoulder or where the shaft is less than 3 inches in diameter.

Q3: How do I identify a 3300 NSv probe visually?

A3: NSv probes typically have a smaller tip diameter and often use a distinct cable color or marking. The 330901-00-10-10-02-00 specifically will have a 1-inch threaded body and the ClickLoc™ connector.

Q4: Is it normal for the shipping weight to be 1.5kg for such a light probe?

A4: Yes. To ensure the high-precision tip and coaxial cable arrive without kinks or damage, Bently Nevada uses oversized, protective, anti-static packaging. This ensures the calibration remains intact from the factory to your facility.