Bently Nevada 330130-075-11-00 Extension Cable 7.5m

Bently Nevada 330130-075-11-00 Armored Extension Cable

Product Introduction

The Bently Nevada 330130-075-11-00 is a high-performance extension cable specifically designed for 3300 XL series proximity monitoring systems. This 7.5-meter cable forms a critical link between the 3300 XL 8 mm proximity probe and the Proximitor sensor. Manufactured in the U.S.A., it comes with an armored FluidLoc option that effectively prevents oil and other process liquids from leaking through the cable interior. Therefore, it is an ideal choice for turbine, compressor, and pump vibration monitoring applications where reliability and safety are paramount.

Key Technical Specifications

This section details the essential electrical and physical parameters of the 330130-075-11-00.

Cable Length: The 330130-075-11-00 provides a length of 7.5 meters (24.6 feet). This offers flexibility for routing between the probe installation point and the sensor housing.

Cable Type: This model includes the Armored FluidLoc option. This design strengthens the cable against physical damage and seals the internal conductors, preventing fluid migration along the cable path.

Connectors: The cable uses corrosion-resistant, gold-plated ClickLoc connectors. These connectors ensure a secure and reliable electrical connection between the probe, the 330130-075-11-00 cable, and the Proximitor sensor.

Capacitance: The typical extension cable capacitance is 69.9 pF/m (21.3 pF/ft). This low and stable capacitance is crucial for maintaining the accuracy of the proximity measurement system.

DC Resistance (Center Conductor): For the 7.5-meter length, the center conductor resistance (RCORE) is 1.65 ± 0.25 Ω.

DC Resistance (Outer Conductor): For the 7.5-meter length, the outer conductor resistance (RJACKET) is 0.49 ± 0.10 Ω.

Compatibility and System Integration

The Bently Nevada 330130-075-11-00 is engineered to work seamlessly with specific system components. It accepts input from one non-contacting 3300-series 5 mm, 3300 8 mm, or 3300 XL 8 mm proximity probe. Furthermore, for optimal performance, the system should be configured with a 3300 XL 8 mm Proximitor sensor.

Power Requirements: The sensor system requires a DC power supply between -17.5 Vdc and -26 Vdc without barriers, with a maximum current consumption of 12 mA. When using barriers, the voltage range is -23 Vdc to -26 Vdc. Operation at a voltage more positive than -23.5 Vdc can potentially reduce the linear range.

Supply Sensitivity: The system exhibits less than a 2 mV change in output voltage per volt change in input voltage. This ensures stable readings even with minor power supply fluctuations.

Output Resistance: The output resistance is 50 Ω, which is standard for compatibility with most monitoring equipment.

Field Wiring: For connections between the Proximitor sensor and the monitor, we recommend using a 3-conductor shielded triad cable with tinned wiring. The maximum recommended field wiring length is 305 meters (1,000 feet).

Mechanical and Environmental Features

The 330130-075-11-00 is built to withstand demanding industrial conditions.

Armored Construction: The armored jacket provides robust protection against crushing, abrasion, and other mechanical stresses commonly found in heavy machinery environments.

FluidLoc Protection: This option is a significant feature. It prevents oil and other liquids from traveling along the cable's interior, which protects the sensor and monitor from contamination and potential failure.

Connector Protection: Each extension cable includes silicone tape. You can use this tape as an alternative to standard connector protectors. However, we do not recommend silicone tape for applications where the probe-to-cable connection will be exposed to turbine oil, as it may degrade in that specific environment.

Probe Sealing: The 3300 XL 8 mm probes feature a Viton® O-ring to seal differential pressure between the probe tip and its case. For applications requiring a pressure test, contact the custom design department, as probes are not pressure tested prior to shipment.

Humidity Resistance: The system shows less than a 3% change in the Average Scale Factor (ASF) when tested in 93% humidity per IEC standard 68-2-3 for up to 56 days. This confirms its reliability in humid operating conditions.

Installation Guidelines

Proper installation of the Bently Nevada 330130-075-11-00 is straightforward but requires attention to detail.

1. Connect the Probe: Securely attach the probe's connector to one end of the 330130-075-11-00 cable. The ClickLoc design ensures a positive lock.

2. Connect to Proximitor: Attach the other end of the cable to the 3300 XL Proximitor sensor.

3. Routing: Route the cable carefully to avoid sharp bends, excessive tension, or contact with high-temperature surfaces. The armored jacket provides good protection, but careful routing is always best practice.

4. Gapping: For standard calibration, gap the 8 mm probe at 1.27 mm (50 mils) from an AISI 4140 steel target. The linear range begins at approximately 0.25 mm (10 mils) and extends to 2.3 mm (90 mils), which corresponds to an output range of approximately -1 to -17 Vdc.

5. Environmental Limits: The specified performance data is valid for ambient temperatures between +18˚C and +27˚C (+64˚F to +80˚F) at a maximum altitude of 2000 meters.

Packaging List

The product package for the 330130-075-11-00 includes the following items:

• 1 x Bently Nevada 330130-075-11-00 Extension Cable (7.5 meters, Armored FluidLoc)

• 1 x Silicone Tape (for connector protection, if needed)

• 1 x Installation Guide (Quick Start)

Note: Calibration certificates and warranty documents are not included in this package.

Frequently Asked Questions (FAQ)

1. Is the Bently Nevada 330130-075-11-00 compatible with older 3300 series probes?
Yes, the Bently Nevada 330130-075-11-00 accepts non-contacting 3300-series 5 mm probes in addition to 8 mm and 3300 XL 8 mm probes.

2. What is the main advantage of the FluidLoc option on this cable?
The FluidLoc option prevents oil and other process fluids from leaking out of the machine through the cable's interior, significantly enhancing system reliability and safety.

3. Can I use the included silicone tape in an oil-filled turbine application?
We do not recommend using the silicone tape for applications where the probe-to-cable connection is directly exposed to turbine oil, as it may not provide adequate long-term sealing in that specific environment.

4. What is the maximum length of field wiring I can use with this cable?
You can run up to 305 meters (1,000 feet) of field wiring between the 3300 XL Proximitor sensor and the monitor. However, be sure to consult the frequency response graphs for signal rolloff at high frequencies.

5. What are the shipping methods for this item?
All orders are shipped using reliable express couriers, including FedEx, UPS, and DHL, to ensure fast and secure delivery.