330130-070-11-00 Bently Nevada Armored FluidLoc Cable

330130-070-11-00 Bently Nevada Armored FluidLoc Extension Cable

Product Introduction

The Bently Nevada 330130-070-11-00 extension cable represents a premium interconnect solution within the 3300 XL 8 mm proximity transducer system. This cable connects the 8 mm probe to the Proximitor Sensor, enabling precise shaft vibration, thrust position, and eccentricity measurements in critical rotating machinery.

Manufactured in the U.S.A., this 3300 XL extension cable offers a 7.0-meter (22.9 feet) length with both an armored outer jacket and the advanced FluidLoc option. The armor delivers exceptional resistance against crushing, abrasion, and mechanical stress, while FluidLoc technology actively prevents oil and other liquids from leaking out of the machine through the cable's interior. This dual-protection design makes the 330130-070-11-00 particularly valuable for turbine bearing housings, gearboxes, and other oil-wetted environments.

This model carries no specific country approvals (00 suffix), offering maximum flexibility for global installations without regional compliance constraints. Its electrical performance, including 1.54Ω center conductor resistance and 69.9 pF/m capacitance, ensures accurate, low-noise signals over the full 7.0-meter length.

Technical Specifications

Electrical Parameters

• Nominal DC Resistance (RCORE): 1.54 ± 0.23 Ω (center conductor to center conductor)

• Nominal DC Resistance (RJACKET): 0.46 ± 0.09 Ω (outer conductor to outer conductor)

• Capacitance: 69.9 pF/m (21.3 pF/ft) typical

• Supply Voltage Range: -17.5 Vdc to -26 Vdc (with nonincendive circuit per drawing 140979)

• Supply Sensitivity: Less than 2 mV change per volt input variation

• Output Resistance: 50 Ω

• Field Wiring Size: 0.2 to 1.5 mm² (16 to 24 AWG), 3-conductor shielded triad recommended

Mechanical & Environmental Ratings

• Cable Length: 7.0 meters (22.9 feet)

• Armored FluidLoc Cable Weight: 103 g/m (1.5 oz/ft), total 0.721 kg

• Pull Strength: 330 N (75 lbf) – patented CableLoc design

• FluidLoc Feature: Prevents oil/liquid leakage through cable interior

• Humidity Resistance: <3% ASF change after 56 days at 93% RH (IEC 68-2-3)

• Temperature Range: +18°C to +27°C (+64°F to +80°F) for specified performance

• Maximum Altitude: 2,000 meters

• Probe Sealing: Viton® O-ring for differential pressure sealing

System Compatibility & Performance

This 3300 XL extension cable operates exclusively with 3300 XL 8 mm probes and Proximitor Sensors. The complete system delivers a linear range of 2 mm (80 mils), beginning at approximately 0.25 mm (10 mils) from the target and extending to 2.3 mm (90 mils). This range corresponds to an output voltage of approximately –1 to –17 Vdc.

Performance specifications are validated using an AISI 4140 steel target, a -24 Vdc power supply, and a 10 kΩ load. For applications involving different target materials, note that system accuracy and interchangeability specifications may not apply. The 330130-070-11-00 incorporates patented TipLoc and CableLoc molding methods, which significantly enhance the mechanical bond between the probe tip and body while providing exceptional pull strength. Such robustness proves essential in high-vibration environments like steam turbines, centrifugal compressors, and large generators.

Furthermore, the FluidLoc option sets this model apart from standard armored cables. This feature creates a positive seal along the cable's interior pathway, preventing oil migration from the machine housing through the cable assembly. Consequently, operators gain improved machine reliability and reduced environmental contamination risks.

Installation Guidelines

Proper installation of the Bently Nevada 330130-070-11-00 requires careful attention to total system length. Specifically, the extension cable length and the probe length must sum exactly to the Proximitor Sensor's total specified length. Any deviation can introduce measurement inaccuracies.

For field wiring between the Proximitor Sensor and the monitor, use 0.2 to 1.5 mm² (16 to 24 AWG) tinned, 3-conductor shielded triad cable. The maximum allowable field wiring distance is 305 meters (1,000 feet). However, longer runs may cause signal rolloff at high frequencies, so always consult the frequency response graphs provided in the product documentation.

Although each cable includes silicone tape as an alternative to connector protectors, we strongly advise against using this tape in applications where the probe-to-extension cable connection contacts turbine oil. The 330130-070-11-00 already provides superior FluidLoc protection, making silicone tape unnecessary and potentially counterproductive in oil-wetted areas. Moreover, the armored construction eliminates the need for additional conduit in many installations, simplifying cable routing through tight machine compartments.

Packaging List

• 1 × Bently Nevada 330130-070-11-00 Armored FluidLoc Extension Cable (7.0 meters)

• 1 × Roll of silicone tape (for connector protection, where applicable)

• 1 × Installation instruction sheet

Note: This package does not include calibration certificates, warranty documents, or mounting accessories.

Shipping Information

All orders are dispatched worldwide via FedEx, UPS, or DHL with full tracking and insured delivery. Standard lead time is 2–3 business days for in-stock items.

Frequently Asked Questions (FAQ)

Q1: What makes the FluidLoc option different from standard armored cable?
A1: FluidLoc actively prevents oil and other liquids from leaking out of the machine through the cable's interior. This feature is essential for turbine bearing housings and gearboxes where oil migration can compromise both machine integrity and environmental safety.

Q2: Can I use the 330130-070-11-00 with non-3300 XL series probes?
A2: No. This cable is specifically engineered for 3300 XL 8 mm probes and Proximitor Sensors. Using it with other series may result in incompatible electrical characteristics and mechanical fitment issues.

Q3: What does the "00" approval suffix mean for this model?
A3: The 00 suffix indicates no specific country approvals are required. This offers maximum flexibility for global installations without regional regulatory constraints, making it ideal for international projects.

Q4: How do I calculate the correct total cable length for my system?
A4: Add the probe length to the extension cable length. The sum must equal the total length specified for your Proximitor Sensor. For the 330130-070-11-00, the 7.0-meter extension is typically paired with a probe whose length complements the sensor's total requirement.

Q5: Is this cable suitable for high-temperature turbine applications?
A5: The specified performance range is +18°C to +27°C (+64°F to +80°F). For elevated temperature applications, consult Bently Nevada's custom design department to verify suitability and explore potential derating considerations.