Bently Nevada 330730-040-02-00 11mm Extension Cable

Bently Nevada 330730-040-02-00 3300 XL 11 mm Extension Cable

Product Introduction

The 330730-040-02-00 serves as an essential component in the 3300 XL 11 mm monitoring system. This extension cable connects the proximity probe to the Proximitor Sensor, enabling accurate vibration and position measurements. Manufactured in the U.S.A., this model features a 4.0-meter length and a standard cable configuration with a connector protector. Additionally, its 75 Ω triaxial design with FEP insulation delivers superior signal integrity. Therefore, it suits critical applications in turbines, compressors, and pumps across power generation and oil and gas industries.

Technical Specifications

This 330730-040-02-00 cable uses a 75 Ω triaxial design with fluoroethylene propylene (FEP) insulation. The center conductor offers a DC resistance of 1.0 ± 0.25 ohms over the 4.0-meter length. Meanwhile, the coaxial conductor resistance measures 0.3 ± 0.1 ohms. Additionally, the typical capacitance is 69.9 pF/m (21.3 pF/ft), which minimizes signal degradation. The connector is made from gold-plated brass, ensuring a secure and corrosion-resistant connection.

Furthermore, the cable's linear range spans 4.0 mm (160 mils). It begins at approximately 0.5 mm (20 mils) from the target and extends from 0.5 to 4.5 mm (20 to 180 mils). This range corresponds to a voltage output of approximately -1 to -17 Vdc. The extended Deviation from Straight Line (DSL) range reaches from 0.5 to 5.0 mm (20 to 200 mils), producing -1 to -19 Vdc. However, the extended DSL range does not apply when using zener barriers. The recommended gap setting for optimal performance is 2.5 mm (100 mils).

The Incremental Scale Factor (ISF) is 3.94 V/mm (100 mV/mil) with a ±10% tolerance. This includes interchangeability error when measured in 0.5 mm (20 mil) increments over the 4.0 mm linear range. Consequently, the 330730-040-02-00 delivers consistent and reliable measurement data.

Mechanical and Environmental Parameters

The cable's construction emphasizes durability and protection. The optional flexible AISI 302 SST armor with an FEP outer jacket provides excellent mechanical and chemical resistance. The standard configuration includes a connector protector, which offers additional protection in humid or moist environments. For installations without connector protectors, silicone tape is provided with each extension cable. However, silicone tape is not recommended in applications where the probe-to-extension cable connection will be exposed to turbine oil.

The tensile strength rating is 330 N (75 pounds) from probe case to probe lead, and 270 N (60 pounds) from probe lead to extension cable connectors. These high ratings prevent accidental disconnections during operation or maintenance. The operating and storage temperature range extends from -52°C to +177°C (-62°F to +351°F), accommodating extreme industrial conditions.

Additionally, the 330730-040-02-00 can be ordered with a FluidLoc cable option. This option prevents oil and other liquids from leaking out of the machine through the cable's interior. The 3300 XL 11 mm probe also comes standard with a locknut featuring pre-drilled safety wire holes, enhancing installation security.

Installation Guidelines

Proper installation of the 330730-040-02-00 requires careful attention to system length requirements. The total length of the probe and extension cable must equal the specified Proximitor Sensor total length of 5 or 9 meters. This ensures accurate system calibration and optimal performance. For field wiring, we recommend using a three-conductor shielded triad cable. The maximum allowable distance between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet). However, please consult the frequency response graph for signal rolloff details when using longer field wiring lengths.

When installing the cable, ensure the connector protector is properly seated to maintain environmental protection. If using silicone tape instead of the connector protector, wrap it securely around the connection point. Nevertheless, avoid using silicone tape in turbine oil exposure applications. The cable weight is 45 g/m (0.5 oz/ft) for standard cable and 140 g/m (1.5 oz/ft) for armored cable. Total weight for the 4.0-meter armored version is 0.56 kg.

Packaging List

• 1 x Bently Nevada 330730-040-02-00 Extension Cable (4.0 meters)

• 1 x Connector protector (installed)

• 1 x Silicone tape (for alternative sealing)

• Cable is shipped with protective end caps

Shipping

All orders are shipped via FedEx, UPS, or DHL.

Frequently Asked Questions

1. What is the exact length of this 330730-040-02-00 cable?
This model has a length of exactly 4.0 meters, which is equivalent to 13.1 feet.

2. What system lengths are supported by the 330730-040-02-00?
This cable supports system lengths of 5 or 9 meters when combined with the appropriate probe and Proximitor Sensor.

3. Does the 330730-040-02-00 include a connector protector?
Yes. The "02" option indicates a standard cable with a connector protector, which provides additional environmental protection in humid or moist conditions.

4. Can I use silicone tape instead of the connector protector?
Yes. Silicone tape is provided with each extension cable. However, avoid using it in applications where the connection will be exposed to turbine oil.

5. What is the FluidLoc cable option for the 330730-040-02-00?
The FluidLoc option prevents oil and other liquids from leaking out of the machine through the cable's interior, providing additional sealing protection.