The Bently Nevada 330730-040-01-00 is an essential component for machinery protection systems. Specifically, this 3300 XL 11 mm extension cable links the proximity probe to the Proximitor Sensor, ensuring uninterrupted signal integrity. Manufactured in the U.S.A., this model features a 4.0-meter (13.1 feet) length and includes a flexible AISI 302 SST armor with an FEP outer jacket for superior durability. Furthermore, its triaxial design minimizes electrical interference, making it ideal for critical turbomachinery applications.
The 330730-040-01-00 boasts impressive electrical characteristics. For instance, its typical extension cable capacitance sits at 69.9 pF/m (21.3 pF/ft), which ensures consistent system performance. Additionally, the DC resistance from the center conductor to the center conductor is rated at 1.0 ± 0.25 ohms, while the resistance from the coaxial conductor to the coaxial conductor is only 0.3 ± 0.1 ohms.
Moreover, this cable maintains a system length of 5 or 9 meters when combined with the probe. The connector material is made of gold-plated brass, which provides excellent corrosion resistance. Meanwhile, the field wiring recommendations include using three-conductor shielded triad cable, supporting a maximum length of 305 meters between the sensor and monitor. Finally, the connector protector option is highly recommended for installations in humid or moist environments.
The Bently Nevada 330730-040-01-00 is engineered for extreme conditions. Firstly, its operating and storage temperature ranges from -51°C to +177°C (-60°F to +351°F). This capability makes it suitable for high-temperature turbine applications. Furthermore, the armored version weighs 140 g/m (1.5 oz/ft), totaling 0.56 kg for the full 4.0-meter length.
Specifically, the optional armor consists of flexible AISI 302 SST, combined with an FEP outer jacket that resists wear and chemical exposure. For applications involving oil exposure, the FluidLoc cable option prevents liquids from leaking through the cable’s interior. Additionally, the tensile strength is rated at 330 N for the probe case and 270 N for the connectors, ensuring robustness during installation.
Proper installation of the 330730-040-01-00 is critical for accurate readings. Initially, ensure that the system is powered off before connecting the cable. Next, verify that the total system length (probe plus extension cable) meets your application requirements. Meanwhile, use silicone tape provided with the cable to seal the connection, but avoid this method in turbine oil environments.
Furthermore, the cable works seamlessly with the 3300 XL Proximitor Sensor. The linear range begins at approximately 0.5 mm from the target, spanning from 0.5 to 4.5 mm. Consequently, the recommended gap setting is 2.5 mm (100 mils). For optimal performance, always use the locknut with pre-drilled safety wire holes, which comes standard with the probe.
Choosing the armored option for the Bently Nevada 330730-040-01-00 provides significant benefits. Firstly, the AISI 302 SST armor offers physical protection against crushing and abrasion. Additionally, the FEP outer jacket ensures resistance to high temperatures and chemicals. This design prevents signal degradation caused by external interference or physical damage, extending the service life of your monitoring system.
1 x Bently Nevada 330730-040-01-00 Extension Cable (4.0m)
1 x Silicone Tape for connection sealing
1 x Pre-drilled Locknut
1 x Installation Instruction Sheet
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1. What is the total system length for the 330730-040-01-00?
The total system length is 5 or 9 meters, depending on the specific probe used with the extension cable.
2. Can I use this cable without the armor in high-temperature areas?
Yes, but the armored version of the 3300 XL 11 mm extension cable is specifically recommended for harsh environments due to its FEP jacket.
3. How do I prevent oil leakage through the cable?
You must order the FluidLoc cable option for the Bently Nevada 330730-040-01-00 to prevent oil leakage.
4. What is the incremental scale factor for this system?
The ISF is 3.94 V/mm (100 mV/mil) ±10% over the 4.0 mm linear range.
5. Is silicone tape recommended for all installations?
No, silicone tape is not recommended where the connection is exposed to turbine oil, as it may degrade. Use connector protectors instead.
| Brand Name | |
| Model No. | 330730-040-01-00 |
| Product Type | Extension Cable |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
