330130-075-03-00 Bently Nevada Armored Proximity Cable

Bently Nevada 330130-075-03-00 Extension Cable

Product Introduction

The Bently Nevada 330130-075-03-00 is a high-performance extension cable designed specifically for the 3300 XL series monitoring systems. This 7.5-meter (24.6 feet) cable serves as the vital link between the non-contacting proximity probe and the Proximitor sensor. Its primary function is to transmit the raw signal from the probe tip to the sensor for processing, ensuring accurate vibration and position measurements on your rotating machinery.

This model comes with the "03" option, indicating it features an armored jacket with a connector protector. This construction provides an additional layer of defense against physical damage, oil, and debris commonly found in turbine and compressor applications. Consequently, the Bently Nevada 330130-075-03-00 offers enhanced durability and longevity compared to standard cables. You can confidently use it in severe industrial settings where cable integrity is paramount.

Technical Specifications

This cable meets rigorous Bently Nevada standards for system performance and reliability. It is a critical component that helps achieve the high accuracy expected from the 3300 XL platform.

• Cable Length: 7.5 meters (24.6 feet).

• Construction: Armored cable with a connector protector.

• Cable Weight (Armored): 103 g/m (1.5 oz/ft), totaling approximately 0.618 kg.

• Compatibility: Accepts one non-contacting 3300-series 5 mm, 3300 8 mm, or 3300 XL 8 mm Proximity Probe.

• Connector Type: Features corrosion-resistant, gold-plated ClickLoc connectors for a secure and reliable connection.

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

• DC Resistance (RCORE): 1.65 ± 0.25 Ω (Center Conductor to Center Conductor).

• DC Resistance (RJACKET): 0.49 ± 0.10 Ω (Outer Conductor to Outer Conductor).

• Supply Voltage: Requires -17.5 Vdc to -26 Vdc without barriers, or -23 Vdc to -26 Vdc with barriers.

• Output Resistance: 50 Ω.

Advanced Design and Construction

The Bently Nevada 330130-075-03-00 incorporates patented technologies for superior performance. Specifically, it uses a CableLoc design which provides 330 N (75 lbf) pull strength. This strong attachment secures the probe cable to the tip, preventing accidental disconnection.

Moreover, the overall system design features TipLoc molding, which creates a robust bond between the probe tip and body. These enhancements make the 3300 XL system more resilient than previous designs. Therefore, your monitoring system benefits from increased uptime and more reliable data. For applications involving turbine oil, we strongly recommend using the connector protector rather than the included silicone tape.

System Integration and Field Wiring

Proper integration is key to maximizing the performance of the Bently Nevada 330130-075-03-00. The system is calibrated for a -24 Vdc power supply with a 10 kΩ load and an AISI 4140 steel target. Therefore, performance characteristics apply specifically to systems using solely 3300 XL 8 mm components.

For field wiring, the Proximitor sensor connects to your monitor. It recommends using a 3-conductor shielded triad cable (0.2 to 1.5 mm2 / 16 to 24 AWG). Furthermore, the maximum length between the sensor and the monitor is 305 meters (1,000 feet). Remember, using longer field wiring lengths will affect high-frequency signal rolloff, so you should consult the frequency response graphs for your specific setup.

Environmental Performance and Durability

The Bently Nevada 330130-075-03-00 is engineered to withstand harsh conditions. This reliability is crucial for continuous operation in power generation and oil & gas industries. For instance, the system demonstrates less than a 3% change in Average Scale Factor (ASF) when tested in 93% humidity for up to 56 days, per IEC standard 68-2-3.

Additionally, the 3300 XL 8 mm probes feature a Viton® O-ring to seal differential pressure between the probe tip and case. While probes are not pressure tested prior to shipment, you can contact their custom design department if your application requires a test of this pressure seal. This level of detail ensures the Bently Nevada 330130-075-03-00 provides a reliable solution for your long-term monitoring needs.

Installation Guidelines

Installing the Bently Nevada 330130-075-03-00 is straightforward but requires attention to detail for optimal performance. First, ensure the system power is off before making any connections. Then, connect the cable to the probe and the Proximitor sensor using the gold-plated ClickLoc connectors. Listen for a positive click to confirm a secure fit.

Next, route the armored cable carefully, avoiding sharp bends or areas with excessive heat. Use the supplied silicone tape at the probe-to-extension cable connection as an alternative to connector protectors. However, avoid using silicone tape if the connection will be exposed to turbine oil. Finally, verify the probe is gapped correctly according to your specific machine requirements, typically at 1.27 mm (50 mils) for calibration.

Packaging List

• 1 x Bently Nevada 330130-075-03-00 Extension Cable (7.5m)

• 1 x Silicone Tape Roll

• 1 x Installation Guide (Quick Start)

Shipping: FedEx, UPS, DHL

Frequently Asked Questions (FAQ)

1. What is the primary use of the Bently Nevada 330130-075-03-00 cable?
This cable links a 3300 XL proximity probe to its Proximitor sensor. It transmits the signal for vibration and position monitoring on critical machinery like turbines and compressors. The armored construction protects it in harsh industrial environments.

2. Is the Bently Nevada 330130-075-03-00 compatible with older 3300 probes?
Yes, this cable accepts one non-contacting 3300-series 5 mm or 3300 8 mm probe. However, its primary compatibility is with the 3300 XL 8 mm probes. Using it with the correct probe ensures the best performance and accuracy.

3. How does the armored design benefit my application?
The armored jacket with a connector protector offers superior protection against crushing, abrasion, and chemical exposure. This is especially beneficial in environments like turbine decks where cables are at risk of physical damage, leading to longer cable life and less downtime.

4. Can I use the silicone tape instead of the connector protector?
Yes, the 330130-075-03-00 includes silicone tape as an alternative. However, we strongly advise using the connector protector instead of tape if the connection point is exposed to turbine oil. The tape is not recommended for such applications.

5. What is the significance of the system being calibrated to AISI 4140 steel?
The 3300 XL 8 mm system is calibrated using AISI 4140 steel as a target for accuracy. The system specifications, like the linear range, apply to this target. You may see different performance if the probe is calibrated to a different target material.