Product Overview
The Bently Nevada 330930-060-00-05 is a 3300 NSv extension cable engineered for precision vibration monitoring in rotating machinery. This 6.0-meter (19.7 feet) cable connects a 3300 XL NSv probe to its Proximitor sensor, ensuring reliable signal transmission in demanding industrial environments. Built with a 75 Ω coaxial, FEP-insulated construction, it delivers stable performance across a wide temperature range of -51°C to +177°C (-60°F to +351°F).
This extension cable is part of the 3300 NSv series, designed for use with Bently Nevada proximity systems. The 330930-060-00-05 model includes multiple agency approvals, making it suitable for global installations. Its robust design withstands harsh conditions, providing long-term reliability for critical asset protection.
Technical Specifications
The Bently Nevada 330930-060-00-05 offers precise electrical characteristics essential for accurate vibration measurement:
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Cable Length: 6.0 meters (19.7 feet)
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Connector Option: Without stainless steel armor
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Agency Approval: Multiple Approvals
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Extension Cable Material: 75 Ω coaxial, fluoroethylene propylene (FEP) insulated
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Operating and Storage Temperature: -51°C to +177°C (-60°F to +351°F)
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Shipping Weight: 1.5 kg
Key electrical parameters ensure signal integrity:
| Parameter |
Value |
| DC resistance (center conductor) |
0.220 Ω/m (0.067 Ω/ft) |
| DC resistance (shield) |
0.066 Ω/m (0.020 Ω/ft) |
| Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Linear Range |
1.5 mm (60 mils), from 0.25 to 1.75 mm (approx. -1 to -13 Vdc) |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| Connector Material |
Gold-plated brass |
| Tensile Strength (max rated) |
220 N (50 lb) at all connection points |
Industry Applications
The Bently Nevada 330930-060-00-05 excels in turbomachinery monitoring, including steam turbines, compressors, and pumps. In a typical application, the cable transmits proximity probe signals to a 3300 XL NSv Proximitor sensor, which then relays data to a vibration monitor. The cable's FEP insulation and -51°C to +177°C temperature rating make it ideal for high-heat environments such as gas turbines.
For example, in a petrochemical plant, the 330930-060-00-05 ensures accurate shaft vibration readings even near hot process lines. Its 75 Ω coaxial design minimizes signal loss, preserving measurement fidelity over the full 6.0-meter length. This reliability reduces false trips and unscheduled downtime, enhancing overall plant availability.
Installation & Setup Guidance
Proper installation is critical for optimal performance. When installing the Bently Nevada 330930-060-00-05, ensure the total length of the extension cable plus the probe equals the Proximitor sensor total length. This matching prevents measurement errors.
Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) conductors, or 0.25 to 0.75 mm² (18 to 23 AWG) with ferrules. A three-conductor shielded triad cable is recommended. The maximum field wiring length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet). For longer runs, consult the frequency response graphs (Figure 16 and Figure 17) to account for signal rolloff at high frequencies.
When routing the cable, avoid sharp bends and excessive tension. The connector uses gold-plated brass for corrosion resistance and reliable contact. Ensure the connectors are tightened securely to prevent intermittent signals.
Maintenance & Reliability
Regular inspection of the Bently Nevada 330930-060-00-05 helps extend its service life. Check the cable for cuts, abrasions, or heat damage, especially near the probe tip and connectors. The FEP insulation resists chemicals and moisture, but physical damage can compromise signal integrity.
The optional stainless steel armor (AISI 302 SST) provides extra mechanical protection in harsh environments. However, this model comes without armor, so take care to protect the cable from impact or crushing. The operating temperature range of -51°C to +177°C allows use in extreme cold or heat, but prolonged exposure beyond these limits may degrade performance.
Because the cable is passive, maintenance is minimal. However, verifying connector tightness and continuity during scheduled maintenance prevents unexpected failures. The 220 N tensile strength at all connection points ensures robust handling during installation and operation.
Selection Guide & Purchasing Advice
When selecting the Bently Nevada 330930-060-00-05, verify the cable length matches your application's requirements. The 6.0-meter length is suitable for most installations, but custom lengths are available in the 3300 NSv series. Also confirm the connector option (without armor) meets your environmental needs; if additional protection is required, consider a model with stainless steel armor.
Ensure the extension cable length plus the probe length equals the Proximitor sensor total length. This is crucial for accurate gap voltage readings. Also verify field wiring distances stay within the 305-meter limit to avoid signal degradation.
For reliable sourcing, PLC Source PRO offers genuine Bently Nevada parts with fast shipping. Our inventory includes the 330930-060-00-05 and related 3300 NSv components. Contact our team for assistance in selecting the right cable for your system.