330101-00-13-15-12-CN | Bently Nevada 8 mm Probe 1.5m

Introduction to the 330101-00-13-15-12-CN

In the evolving landscape of industrial automation, accurate vibration monitoring has become a cornerstone of predictive maintenance. The 330101-00-13-15-12-CN from Bently Nevada represents a significant step forward in eddy-current probe technology. This 8 mm probe, with a 3/8-24 UNF thread and a 1.5-meter cable, is engineered to provide precise shaft vibration and position measurements, helping plants avoid unplanned downtime and extend machinery life.

As part of the 3300 XL series, this probe incorporates patented design improvements that enhance durability and signal integrity. Whether you are upgrading an existing monitoring system or installing a new one, the 330101-00-13-15-12-CN offers the performance and reliability you expect from Bently Nevada.

Key Features and Technical Specifications

• Probe Type: 3300 XL 8 mm probe with 3/8-24 UNF thread, without armor.
• Unthreaded Length: 0.0 inches.
• Overall Case Length: 1.3 inches.
• Total Length: 1.5 meters (4.9 feet).
• Connector: Miniature coaxial ClickLoc connector with FluidLoc cable.
• Nominal Probe DC Resistance: 7.73 ± 0.50 ohms (for 1.5 m probe).
• Extension Cable Capacitance: 69.9 pF/m (21.3 pF/ft) typical.
• Linear Range: 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from target.
• Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±5% for 1.5 m system.
• Probe Tip Material: Polyphenylene sulfide (PPS).
• Probe Case Material: AISI 303 or 304 stainless steel.
• Operating Temperature: -52°C to +177°C (-62°F to +350°F) standard.

These specifications ensure accurate and repeatable measurements across a wide range of operating conditions. The patented TipLoc molding method provides a robust bond between the probe tip and body, while the CableLoc design offers 330 N (75 lbf) pull strength, preventing cable detachment in demanding environments.

Applications and Use Cases

The 330101-00-13-15-12-CN is ideal for radial vibration monitoring on rotating machinery such as turbines, compressors, pumps, and motors. Its 2 mm linear range and high sensitivity make it suitable for detecting subtle shaft movements that indicate bearing wear or imbalance. In addition, the FluidLoc cable option prevents oil leakage through the cable interior, making it a preferred choice for applications where lubrication fluids are present.

For example, in a petrochemical plant, this probe can be installed on a critical pump to continuously monitor shaft vibration. Early detection of abnormal vibration patterns allows maintenance teams to schedule repairs before a catastrophic failure occurs, saving both time and money.

Installation and Setup

Proper installation is essential for optimal performance. The 330101-00-13-15-12-CN features a 3/8-24 UNF thread, which allows secure mounting into standard probe holders. When installing, ensure that the probe tip is positioned within the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration measurements. Use the provided ClickLoc connector to attach the extension cable, and route the cable carefully to avoid sharp bends or excessive strain.

Field wiring should use 3-conductor shielded triad cable with tinned conductors, sized between 0.2 and 1.5 mm² (16 to 24 AWG). The maximum recommended distance between the probe and the monitor is 305 meters (1,000 feet). For longer runs, consult the frequency response graphs to account for signal rolloff at high frequencies.

Maintenance and Reliability

Routine inspection of the probe and cable is recommended to ensure long-term reliability. Check for any physical damage to the probe tip or cable, and verify that the connector remains securely attached. The probe is designed to withstand harsh environments, with a temperature range of -52°C to +177°C and relative humidity tolerance of less than 3% change in Average Scale Factor when tested at 93% humidity for up to 56 days.

Because the probe is not pressure tested prior to shipment, if your application involves differential pressure, contact Bently Nevada's custom design department for pressure seal testing. Regular maintenance, combined with the probe's robust construction, minimizes downtime and extends the service life of your monitoring system.

Compatibility and Integration

The 330101-00-13-15-12-CN is designed to work with Bently Nevada 3300 XL Proximitor sensors and monitoring systems. It is compatible with standard extension cables and can be integrated into existing vibration monitoring networks. The miniature coaxial ClickLoc connector ensures a secure and reliable connection, while the FluidLoc cable option provides additional protection against fluid ingress.

For new installations, ensure that the probe is paired with the correct Proximitor model to achieve the specified scale factor and linear range. Refer to the Bently Nevada documentation for detailed compatibility information.

Frequently Asked Questions

Q: What is the linear range of the 330101-00-13-15-12-CN?

A: The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target.

Q: What is the recommended gap setting for radial vibration measurement?

A: The recommended gap setting is -9 Vdc, which corresponds to approximately 1.27 mm (50 mils).

Q: What is the operating temperature range of this probe?

A: The standard probe operates from -52°C to +177°C (-62°F to +350°F).

Q: What is the nominal DC resistance of the probe?

A: The nominal probe DC resistance is 7.73 ± 0.50 ohms for the 1.5-meter probe.

Q: Can I use this probe with a longer cable?

A: Yes, but the maximum field wiring length between the probe and monitor is 305 meters (1,000 feet). For longer runs, check the frequency response graphs for signal rolloff.

Product Support and Availability

The 330101-00-13-15-12-CN is available through Petro Auto Tech. Please verify current lifecycle status and availability with Petro Auto Tech before ordering. Our team can assist with technical questions and ensure you receive the correct parts for your application.