Bently Nevada 330930-065-03-00 3300 NSv Cable

3300 NSv Extension Cable with Connector Protector by Bently Nevada

Product Introduction

The Bently Nevada 330930-065-03-00 is a precision extension cable from the 3300 NSv series. This model measures 6.5 meters (21.3 feet) in length. It connects the 3300 NSv probe to the Proximitor Sensor for vibration monitoring. The distinguishing feature of this version is the connector protector option (code 03). This protector provides additional protection for the connectors in humid or moist environments.

This cable uses a 75 Ω coaxial design with fluoroethylene propylene (FEP) insulation. The FEP material offers outstanding dielectric properties and chemical resistance. Its gold-plated brass connectors resist corrosion and maintain low contact resistance. The 330930-065-03-00 maintains a typical capacitance of 69.9 pF/m (21.3 pF/ft). This low capacitance preserves signal quality over the full 6.5-meter length.

The connector protector option makes this cable ideal for installations with high humidity. These include coastal facilities, outdoor installations, and wash-down areas. The protector shields the connection point from moisture ingress. Therefore, it extends the service life of the connector interface.

Connector Protector and Environmental Protection

The connector protector (option 03) provides a vital barrier against moisture. It covers the connection between the probe lead and the extension cable. This prevents condensation or liquid from reaching the electrical contacts. Consequently, it maintains signal integrity and prevents corrosion-related failures.

Bently Nevada recommends connector protectors for all installations. They provide increased environmental protection in any setting. For the 330930-065-03-00, the protector comes as a standard inclusion. This eliminates the need for aftermarket sealing solutions.

Silicone tape is also available as an alternative sealing method. However, Bently Nevada does not recommend silicone tape in turbine oil applications. The connector protector offers superior and more reliable protection. Therefore, the 03 option is the preferred choice for critical installations.

The cable itself does not include stainless steel armor (option 03). This makes it lighter and more flexible than armored versions. It suits installations where mechanical abrasion is not a primary concern. The unarmored construction simplifies routing in tight spaces.

Technical Specifications

The Bently Nevada 330930-065-03-00 delivers consistent electrical performance over its 6.5-meter length. The center conductor DC resistance is 0.220 Ω/m (0.067 Ω/ft). The shield resistance measures 0.066 Ω/m (0.020 Ω/ft). These values ensure proper impedance matching with the 3300 NSv Proximitor Sensor.

For field wiring, this cable accepts conductors from 0.2 to 1.5 mm² (16 to 24 AWG). We recommend using a three-conductor shielded triad cable for optimal noise rejection. The maximum field wiring length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet). However, consult the frequency response graphs (Figures 16 and 17) for signal rolloff at extended lengths.

When combined with the 3300 NSv probe, the system's linear range spans 1.5 mm (60 mils). The linear range starts at approximately 0.25 mm (10 mils) from the target. It extends from 0.25 to 1.75 mm (10 to 70 mils), corresponding to -1 to -13 Vdc. The recommended gap setting is 1.0 mm (40 mils) for optimal performance.

System Length Compatibility

Make sure that the extension cable length and the probe length, when added together, equal the Proximitor Sensor total length. This ensures proper system calibration and performance. The 330930-065-03-00 is a 6.5-meter cable. Therefore, it works with specific probe lengths to achieve the correct total system length.

Always verify the total system length requirement for your Proximitor Sensor model. Mismatched lengths can result in incorrect gap settings and measurement errors. The 3300 NSv series offers various probe and extension cable combinations. Therefore, select the correct combination for your specific application.

For a 6.5-meter extension cable, the probe length must be selected accordingly. Common total system lengths include 5, 7, and 9 meters. Check your Proximitor Sensor documentation for the exact requirement.

Mechanical and Environmental Features

This extension cable offers a wide operating temperature range of -51°C to +177°C (-60°F to +351°F). For storage, the range extends slightly to -52°C to +177°C (-62°F to +351°F). Therefore, it performs reliably in extreme industrial environments. The FEP insulation and jacket maintain their properties across this full temperature range.

The tensile strength rating reaches 220 N (50 lb) for all connection points. This applies to the probe case to probe lead connection. It also applies to the probe lead to extension cable connectors. Therefore, the assembly maintains consistent pull strength throughout.

The connector material is gold-plated brass, which resists oxidation and corrosion. This ensures reliable electrical contact over many connection cycles. The connector protector adds an extra layer of defense against moisture. All these features make the 330930-065-03-00 a reliable choice for critical machinery monitoring.

Installation Guidelines

Proper installation ensures accurate measurements and long service life. First, verify that the 6.5-meter length suits your total system length requirement. Next, connect the cable securely to both the probe and the Proximitor Sensor. Ensure the connector protector is properly seated over the connection joint.

Set the probe gap to the recommended 1.0 mm (40 mils) for optimal performance. The linear range is 1.5 mm (60 mils), narrower than the 3300 XL series. Therefore, accurate gap setting is especially critical for the 3300 NSv system. When routing the cable, avoid sharp bends and excessive strain. The tensile strength limit is 220 N for all connection points.

For installations in humid environments, the connector protector provides essential moisture protection. Ensure it is correctly installed to create an effective seal. If operating in extremely wet conditions, consider additional sealing methods. Always follow local electrical codes and safety regulations during installation.

Packaging and Shipping

Your order for the 330930-065-03-00 includes the extension cable with connector protector. Each unit is individually packaged to prevent damage during transit. We ship exclusively via FedEx, UPS, or DHL for fast, reliable delivery. All shipments are fully trackable and insured.

The gross weight for this unarmored version is 1.5 kg. This weight includes the cable and connector protector. Our team inspects every cable before shipment to guarantee quality.

Frequently Asked Questions

Q1: What protection does the connector protector provide?
The connector protector shields the connection point from moisture and humidity. This prevents corrosion and maintains signal integrity. The Bently Nevada 330930-065-03-00 includes this protector as standard.

Q2: How do I determine the correct total system length?
Add the extension cable length and the probe length together. The sum must equal the Proximitor Sensor total length. For the 330930-065-03-00, ensure your probe length matches the 6.5-meter extension.

Q3: Is this cable armored?
No, the 03 option specifies "without stainless steel armor." This makes the cable lighter and more flexible. For armored versions, choose option 01 or 02 instead.

Q4: Can I use silicone tape instead of the connector protector?
Silicone tape is provided as an alternative. However, Bently Nevada does not recommend silicone tape in turbine oil applications. The connector protector offers superior and more reliable moisture protection.

Q5: What is the recommended gap setting for this cable?
The recommended gap setting is 1.0 mm (40 mils). The linear range runs from 0.25 to 1.75 mm (10 to 70 mils). Set the gap accurately for optimal performance with the 3300 NSv Extension Cable.