300103-00-05-10-02-05 | Bently Nevada 3300 XL 8 mm Proximity Probe

Introduction to the Bently Nevada 300103-00-05-10-02-05

When machine vibration threatens uptime, the 300103-00-05-10-02-05 from Bently Nevada delivers reliable measurement. This 3300 XL 8 mm proximity probe is engineered for industrial rotating machinery monitoring. It provides accurate displacement readings to help you detect shaft vibration and position changes early.

Part of the trusted 3300 XL family, this probe features a polyphenylene sulfide (PPS) tip and a stainless steel case (AISI 303 or 304). These materials offer durability in demanding environments. The probe is designed for differential pressure sealing between the tip and case, using a Viton® O-ring.

Key Features and Technical Specifications

The 300103-00-05-10-02-05 is a 3300 XL 8 mm proximity probe with specific options that define its performance. Here are the key parameters:

• Unthreaded Length: 00 mm
• Overall Case Length: 50 mm
• Total Length: 1.0 meter (3.3 feet)
• Connector: Miniature coaxial ClickLoc connector, standard cable
• Agency Approvals: CSA, ATEX, IECEx
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 303 or 304 stainless steel (SST)
• Nominal DC Resistance (RPROBE): 7.59 ± 0.50 Ω for 1.0 m length

A distinctive feature is the linear range of 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target. This provides a usable measurement window from 0.25 to 2.3 mm (10 to 90 mils), corresponding to approximately –1 to –17 Vdc. The recommended gap setting for radial vibration is –9 Vdc, approximately 1.27 mm (50 mils).

Applications and Use Cases

The 300103-00-05-10-02-05 is suitable for monitoring radial vibration and axial position in turbomachinery, pumps, compressors, and other rotating equipment. Its hazardous area approvals (Class I, Zone 0 and Zone 2) make it a strong candidate for oil and gas, chemical, and power generation facilities. For example, in a refinery, this probe can help detect shaft misalignment before it leads to costly downtime. Additionally, its robust construction supports long-term reliability in harsh industrial settings.

Installation and Setup Guidance

Proper installation is critical for accurate readings. The probe uses an M10 x 1 thread with a maximum thread engagement of 15 mm. Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) conductors, preferably a 3-conductor shielded triad cable with tinned leads. The maximum cable length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet). For longer runs, consult the frequency response graphs in the datasheet to account for signal rolloff.

When mounting, ensure the probe tip is positioned correctly relative to the target. The recommended gap setting of –9 Vdc (approximately 1.27 mm) is a starting point; adjust based on your specific machine and application. Always follow the manufacturer's installation manual for detailed procedures.

Maintenance and Reliability

Regular inspection of the probe and its cable is essential to maintain measurement integrity. Check for physical damage, loose connections, and signs of wear. The probe operates in a temperature range of –52°C to +177°C (–62°F to +350°F) for standard versions. Exposing the probe to temperatures below –34°C (–30°F) may cause premature failure of the pressure seal, so avoid such conditions.

The probe's relative humidity performance is excellent: less than a 3% change in Average Scale Factor (ASF) when tested at 93% humidity per IEC 68-2-3 for up to 56 days. This ensures stable readings in humid environments. Periodic verification of the probe's DC resistance can help detect cable or connector issues early.

Compatibility and Integration

The 300103-00-05-10-02-05 is designed to work with Bently Nevada 3300 XL Proximitor Sensors and monitoring systems. It uses a miniature coaxial ClickLoc connector, which provides a secure and reliable connection. The probe is compatible with intrinsically safe zener barriers (per drawing 141092) or galvanic isolators for hazardous area installations. For non-incendive circuits, it can be connected per drawing 140979.

Always verify compatibility with your specific monitoring system before ordering. The probe's output is a DC voltage proportional to displacement, which can be integrated into most Bently Nevada monitoring platforms.

Comparison with Similar Probes

Compared to standard 8 mm proximity probes, the 3300 XL series offers a longer linear range and improved temperature stability. The 300103-00-05-10-02-05 specifically provides a 2 mm linear range, which is wider than many competing models. Its agency approvals (CSA, ATEX, IECEx) make it suitable for hazardous areas where non-approved probes cannot be used. Additionally, the PPS tip and stainless steel case offer superior chemical resistance and mechanical strength.

Troubleshooting Common Issues

If you encounter erratic readings, first check the probe gap. An incorrect gap can cause the probe to operate outside its linear range. Ensure the target surface is clean and free of runout. Verify that the cable is not damaged and that all connections are tight. If the problem persists, measure the probe's DC resistance; it should be 7.59 ± 0.50 Ω for a 1.0 m probe. A significant deviation may indicate a faulty probe or cable.

For installations in hazardous areas, confirm that the barrier or isolator is correctly installed and rated. Always follow the manufacturer's guidelines for troubleshooting and maintenance.

Frequently Asked Questions

Q: What is the linear range of the 300103-00-05-10-02-05?

A: The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target, extending to 2.3 mm (90 mils).

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

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

Q: What are the agency approvals for this probe?

A: The probe has CSA, ATEX, and IECEx approvals, making it suitable for hazardous areas.

Q: What is the maximum field wiring length?

A: The maximum length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Q: What is the probe's DC resistance?

A: For a 1.0 meter probe, the nominal DC resistance is 7.59 ± 0.50 Ω.

Product Support and Availability

The 300103-00-05-10-02-05 is available through Petro Auto Tech, your trusted industrial automation parts supplier. We offer competitive pricing and fast shipping. Please verify current lifecycle status and availability with Petro Auto Tech before ordering. Our team is ready to assist with any technical questions you may have.