3300 NSv Extension Cable with Armor by Bently Nevada
Product Introduction
The Bently Nevada 330930-040-01-00 is a high-quality extension cable from the 3300 NSv series. This model measures 4.0 meters (13.1 feet) in length. It connects the 3300 NSv probe to the Proximitor Sensor for precision vibration monitoring. The key feature of this version is the stainless steel armor with FEP jacket (option 01). This armor provides excellent mechanical protection against abrasion, impact, and harsh conditions.
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 330930-040-01-00 maintains a typical capacitance of 69.9 pF/m (21.3 pF/ft). This low capacitance preserves signal quality over the full 4.0-meter length.
The armored construction makes this cable ideal for demanding installations. These include applications with high vibration, potential impact, or abrasive environments. The FEP outer jacket adds extra chemical resistance and protection. Therefore, this cable suits petrochemical, power generation, and heavy industrial facilities.
Armored Construction and Mechanical Protection
The stainless steel armor (option 01) distinguishes this extension cable from standard versions. Flexible AISI 302 SST wraps around the coaxial cable core. This armor provides exceptional resistance to crushing, cutting, and abrasion. The FEP outer jacket adds a smooth, chemical-resistant surface over the armor. Consequently, the cable withstands severe installation and operating conditions.
The tensile strength rating for this armored cable reaches 220 N (50 lb). This applies to the probe case to probe lead connection. It also applies to the probe lead to extension cable connectors. Furthermore, the probe case to stainless steel armor connection also supports 220 N (50 lb). Therefore, the entire 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 connectors also provide a secure mechanical interface with the probe and Proximitor Sensor. For added protection in humid environments, connector protectors are available as an option.
Technical Specifications
The Bently Nevada 330930-040-01-00 delivers consistent electrical performance over its 4.0-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 330930-040-01-00 is a 4.0-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.
Mechanical and Environmental Features
This armored 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 probe tip material for the 3300 NSv series is designed for durability. The coaxial construction provides excellent signal integrity with low loss. The gold-plated connectors ensure minimal contact resistance. All these features make the 330930-040-01-00 a reliable choice for critical machinery monitoring.
Installation Guidelines
Proper installation ensures accurate measurements and long service life. First, verify that the 4.0-meter length suits your total system length requirement. Next, connect the cable securely to both the probe and the Proximitor Sensor. Ensure the connectors are fully engaged and properly tightened.
Set the probe gap to the recommended 1.0 mm (40 mils) for optimal performance. The linear range is 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 armored cable installations, ensure the armor does not contact live electrical parts. Use appropriate cable ties and supports to relieve stress on the connectors. If operating in a humid environment, install connector protectors for added moisture resistance. Always follow local electrical codes and safety regulations during installation.
Packaging and Shipping
Your order for the 330930-040-01-00 includes the armored extension cable. 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 armored version is 1.5 kg. This weight includes the stainless steel armor and FEP outer jacket. Our team inspects every cable before shipment to guarantee quality.
Frequently Asked Questions
Q1: What is the difference between the 3300 XL and 3300 NSv extension cables?
The 3300 NSv Extension Cable features a narrower linear range of 1.5 mm (60 mils) compared to the 3300 XL's 4.0 mm range. The NSv series is designed for specific applications with smaller measurement ranges.
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 Bently Nevada 330930-040-01-00, ensure your probe length matches accordingly.
Q3: What protection does the stainless steel armor provide?
The flexible AISI 302 SST armor protects against crushing, cutting, and abrasion. The FEP outer jacket adds chemical resistance. This makes the 330930-040-01-00 suitable for harsh industrial environments.
Q4: Can I use this cable without the armor option?
Yes, the 3300 NSv series offers unarmored options with different connector codes. The 01 option specifically includes stainless steel armor with FEP jacket. Choose based on your application requirements.
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), corresponding to -1 to -13 Vdc. Set the gap accurately for optimal performance.