This Bently Nevada 330730-040-01-05 belongs to the 3300 XL series and serves as a precision extension cable for proximity measurement systems. It establishes a secure and reliable link between the 3300 XL 11 mm probe and the Proximitor sensor. Additionally, this particular model includes the armored cable option for superior mechanical protection. The cable measures exactly 4.0 meters (13.1 feet) in length, which accommodates a wide range of mounting configurations. High-quality materials form the core of this cable's construction, ensuring consistent signal integrity throughout its service life. Consequently, this component plays a vital role in vibration and position monitoring applications for turbomachinery.
The Bently Nevada 330730-040-01-05 delivers precise electrical performance for accurate system measurements. Its typical extension cable capacitance measures 69.9 pF/m (21.3 pF/ft). The DC resistance from the center conductor (RCORE) registers at 1.0 ± 0.25 ohms, while the coaxial conductor resistance (RJACKET) reads 0.3 ± 0.1 ohms. These electrical parameters guarantee consistent operation within the 3300 XL system architecture. Moreover, the cable utilizes a 75 Ω triaxial, fluoroethylene propylene (FEP) insulated construction. This insulation material offers excellent dielectric strength and resists chemical attack effectively. Gold-plated brass connectors provide superior corrosion resistance and maintain reliable signal contact over time.
This armored extension cable withstands severe operating conditions with ease. The flexible armor consists of AISI 302 stainless steel combined with a FEP outer jacket, delivering exceptional protection against mechanical stress. Its operating and storage temperature range extends from -51°C to +177°C (-60°F to +351°F). Meanwhile, the cable weighs approximately 140 g/m (1.5 oz/ft), bringing the total weight for the 4.0-meter length to 0.56 kg. The tensile strength rating reaches 270 N (60 pounds) specifically at the probe lead to extension cable connectors. For humid or moist installation environments, connector protectors offer additional sealing and protection. Furthermore, silicone tape accompanies each extension cable and serves as an alternative sealing method.
This 330730-040-01-05 cable integrates smoothly into the complete 3300 XL monitoring ecosystem. The system length, including both the probe and extension cable, can reach 5 or 9 meters depending on configuration. Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) conductors, with a maximum permissible length of 305 meters (1,000 feet) between the Proximitor Sensor and the monitor. Specifically, the linear range spans 4.0 mm (160 mils), starting at approximately 0.5 mm (20 mils) from the target surface. The recommended gap setting is 2.5 mm (100 mils). Additionally, the Incremental Scale Factor (ISF) equals 3.94 V/mm (100 mV/mil) ±10% , and this figure includes interchangeability error across the entire linear range.
Installing the Bently Nevada 330730-040-01-05 follows a straightforward process when you adhere to standard procedures. First, clean the cable connectors thoroughly and check for debris before mating them with the probe and Proximitor sensor. Next, route the cable along a path that avoids sharp bends or excessive pulling force, as these conditions could damage the armor or internal conductors. For applications where the probe-to-extension cable connection encounters turbine oil, do not rely on silicone tape as the primary seal. Instead, use connector protectors specifically designed for oil-resistant sealing. Furthermore, the 3300 XL 11 mm probe comes equipped with a locknut featuring pre-drilled safety wire holes for secure fastening. Finally, tighten all connections to the specified torque values to preserve system integrity.
Each Bently Nevada 330730-040-01-05 order includes the following items:
One 4.0-meter 3300 XL 11 mm armored extension cable
Silicone tape for connection sealing (provided with each cable)
Installation instructions sheet
Note: Calibration certificates and warranty documents are available upon request and do not form part of the standard packaging.
We ship all orders via FedEx, UPS, or DHL with full tracking and insurance coverage.
1. What is the exact length of the Bently Nevada 330730-040-01-05 cable?
This cable has a fixed length of 4.0 meters, which equals approximately 13.1 feet. It belongs to the 3300 XL system and does not allow field shortening or extension.
2. Can this armored cable handle high-temperature turbine applications?
Yes, absolutely. This cable operates reliably from -51°C to +177°C, making it suitable for turbine environments. However, we recommend using connector protectors instead of silicone tape when the cable encounters turbine oil.
3. Is the 330730-040-01-05 compatible with all 3300 XL 11 mm probes?
Yes, this extension cable is fully compatible with all standard 3300 XL 11 mm proximity probes. It connects directly to the probe lead and the Proximitor sensor without requiring any adapters.
4. What distinguishes the armored cable from the standard version?
The armored version features flexible AISI 302 stainless steel braiding with a FEP outer jacket, which provides extra protection against physical damage. The standard cable weighs significantly less at 45 g/m compared to 140 g/m for the armored version.
5. How should I store this cable before installation?
Store the cable in a clean, dry environment within the specified temperature range of -51°C to +177°C. Avoid exposing it to direct sunlight, corrosive chemicals, or heavy mechanical pressure that could deform the cable.
| Brand Name | |
| Model No. | 330730-040-01-05 |
| Product Type | Extension Cable |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
