This Bently Nevada 330730-040-11-00 belongs to the 3300 XL series and functions as a specialized extension cable for proximity measurement systems. It establishes a secure and leak-proof link between the 3300 XL 11 mm probe and the Proximitor sensor. Additionally, this model incorporates both armored construction and FluidLoc technology for superior protection. The cable measures exactly 4.0 meters (13.1 feet) in length, which suits a variety of mounting configurations. High-quality materials form the core of this cable's construction, ensuring consistent signal integrity and preventing fluid migration. Consequently, this component plays a vital role in oil-sealed turbomachinery monitoring applications.
The Bently Nevada 330730-040-11-00 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.
The 330730-040-11-00 distinguishes itself through its integrated FluidLoc cable option. This innovative feature prevents oil and other process liquids from leaking out of the machine through the cable's interior. Standard extension cables can potentially create a path for fluid migration along the internal conductors. However, the FluidLoc design incorporates specialized sealing elements that block this leakage path entirely. This feature proves especially valuable in turbine and compressor applications where oil containment is critical. Furthermore, this cable retains full compatibility with all standard 3300 XL probe systems. The FluidLoc option adds no additional complexity to installation or maintenance procedures.
This armored FluidLoc 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, though we do not recommend it for oil-exposed connections.
This 330730-040-11-00 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 330730-040-11-00 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, the FluidLoc design provides inherent leakage protection. However, we still recommend using connector protectors for additional sealing confidence. 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 330730-040-11-00 order includes the following items:
One 4.0-meter 3300 XL 11 mm armored FluidLoc 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 makes the FluidLoc option different from a standard extension cable?
The FluidLoc option incorporates specialized sealing elements that prevent oil and other liquids from leaking out of the machine through the cable's interior. This feature provides critical protection in turbine and compressor applications where oil containment matters.
2. What is the exact length of the Bently Nevada 330730-040-11-00 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.
3. Can this armored FluidLoc cable handle high-temperature turbine applications?
Yes, absolutely. This cable operates reliably from -51°C to +177°C, making it suitable for turbine environments. The FluidLoc design specifically addresses the oil leakage concerns common in these applications.
4. Is the 330730-040-11-00 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.
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. | 330730-040-11-00 |
| Product Type | Extension Cable |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
