330730-080-12-00 | Bently Nevada 3300 XL Extension Cable

Product Introduction

The Bently Nevada 330730-080-12-00 serves as a precision-engineered component within the renowned 3300 XL series. This 11 mm extension cable connects an 11 mm proximity probe to a Proximitor sensor, forming a vital link in the monitoring chain for rotating machinery. This cable, manufactured in the U.S.A., maintains signal integrity over extended distances. Therefore, it plays an indispensable role in achieving accurate vibration and position measurements on critical assets like turbines, compressors, and pumps.

Technical Specifications

The model suffix clearly defines the key features of this cable. The 330730-080-12-00 offers an 8.0-metre (26.2 feet) length, ideal for bridging the gap between the probe location and the sensor in the junction box. The "12" option signifies the inclusion of a FluidLoc cable and a connector protector. FluidLoc technology prevents oil and other process liquids from leaking out of the machine through the cable's interior. This feature safeguards both the equipment and the environment effectively. Additionally, the connector protector provides an extra layer of defense against moisture and humidity, ensuring the connection remains reliable in harsh conditions.

This cable features a 75 Ω triaxial design with fluoroethylene propylene (FEP) insulation, delivering excellent signal quality. Its typical capacitance measures 69.9 pF/m (21.3 pF/ft) . For the 8.0-meter length, the DC resistance from the center conductor is 2.0 ± 0.5 ohms, and from the coaxial conductor, it is 0.6 ± 0.2 ohms. Moreover, the system's linear range begins at approximately 0.5 mm from the target and extends to 4.5 mm. We recommend a gap setting of 2.5 mm (100 mils) for optimal performance.

Mechanical & Environmental Durability

The 330730-080-12-00 withstands the toughest industrial environments with ease. It offers a wide operating and storage temperature range of -51°C to +177°C (-60°F to +351°F) . The cable material itself consists of a robust 75 Ω triaxial, FEP-insulated design. For applications requiring additional protection, an optional flexible AISI 302 stainless steel armor with an FEP outer jacket exists. The cable weighs approximately 45 g/m (0.5 oz/ft), while the armored version weighs 140 g/m (1.5 oz/ft).

Installation & Compatibility

The straightforward design of the 330730-080-12-00 makes installation simple. All components of the 3300 XL transducer system feature gold-plated brass ClickLoc connectors. These connectors lock securely into place, effectively preventing the connection from becoming loose due to vibration or accidental pulling. Furthermore, the patented CableLoc design firmly attaches the probe cable to the probe tip, providing a pull strength of 330 N (75 lb) . This robust mechanical construction ensures a dependable and long-lasting installation.

Various case configurations exist for the 3300 XL 11 mm probe. These include armored and unarmored options with thread sizes such as ½-20, 5⁄8-18, M14 X 1.5, and M16 X 1.5. Furthermore, reverse mount probes come standard with either 3⁄8-24 or M10 X 1 threads. This versatility makes the 330730-080-12-00 compatible with a wide range of probe types and mounting styles.

For field wiring, we recommend using a three-conductor shielded triad cable with a conductor size of 0.2 to 1.5 mm² (16 to 24 AWG). The maximum allowable length between the 3300 XL Proximitor Sensor and the monitor reaches 305 meters (1,000 feet) . However, you should consult the frequency response graph for signal rolloff characteristics when using longer field wiring lengths. The factory supplies the Proximitor Sensor calibrated to AISI 4140 steel by default, but we can provide calibration to other target materials upon request.

Packaging List

Each unit of the 330730-080-12-00 arrives in careful packaging to ensure safe delivery. The package includes the following items:

• 1 x Bently Nevada 330730-080-12-00 3300 XL 11 mm Extension Cable (8.0 meters)

• 1 x Connector Protector (pre-installed on the cable)

• 1 x Silicone Tape (for additional sealing, if preferred over the connector protector)

Please note that this product package does not include mounting hardware, probes, sensors, or any documentation such as certificates or warranty cards. You must order these items separately if required.

Shipping Information

We ship all orders for the 330730-080-12-00 using premium express services to ensure timely and secure delivery. We partner with leading global carriers, including FedEx, UPS, and DHL. The specific carrier for your order will depend on your location and the shipping method you select at checkout. All shipments carry full traceability, and we will provide tracking information to you promptly.

Frequently Asked Questions (FAQ)

1. What does the "080" in the model number 330730-080-12-00 signify?
The "080" in the model number specifies the cable length. In this case, it indicates that the extension cable measures 8.0 metres (26.2 feet) long. This represents a standard length option for the 3300 XL series.

2. What is the purpose of the FluidLoc option on this cable?
The FluidLoc option prevents oil and other process liquids from leaking out of the machinery through the interior of the cable. This feature maintains a safe and clean operating environment, especially in applications with oil-filled bearing housings.

3. Can I use this extension cable with any 11 mm probe?
Yes, the 330730-080-12-00 is compatible with all 3300 XL 11 mm proximity probes. However, you must ensure that the total system length (probe cable + extension cable) does not exceed the maximum allowed length for the Proximitor sensor you are using to maintain accurate calibration.

4. What is the benefit of the connector protector included with this cable?
The connector protector provides an additional seal around the connection point between the probe and the extension cable. This proves especially beneficial in humid or moist environments, as it prevents moisture ingress that could degrade signal quality. For many applications, it serves as a recommended alternative to using silicone tape.

5. What is the operating temperature range for the 330730-080-12-00?
This extension cable handles extreme conditions effectively. Its operating and storage temperature range spans from -51°C to +177°C (-60°F to +351°F) . This makes it suitable for a wide variety of industrial settings, from cold outdoor installations to high-temperature machinery environments.