Product Overview
The Bently Nevada 330905-00-05-05-02-05 is a 3300 NSv proximity probe designed for critical rotating machinery monitoring. This Industrial Automation Module delivers precise displacement and vibration measurements in demanding environments. With its M10X1 thread and 0.5 meter (20 in) total length, the 330905-00-05-05-02-05 offers a robust solution for process compressor applications where chemical resistance is essential.
This probe is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM probe, ensuring seamless upgrades. The enhanced side-view characteristics provide superior gapping performance compared to the 3000-series 190 probe. Each unit ships new and original in factory packing, backed by a 12-month warranty.
Technical Specifications
The 330905-00-05-05-02-05 delivers reliable performance across a wide operating range. Key parameters include:
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Linear Range: 1.5 mm (60 mils) from 0.25 to 1.75 mm (10 to 70 mils)
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Recommended Gap Setting: 1.0 mm (40 mils)
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±12.5%/-20%
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Deviation from Best Fit Straight Line (DSL): Less than ±0.06 mm (±2.3 mils)
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Frequency Response: 0 to 10 kHz (+0, -3 dB typical) with up to 305 m (1000 ft) field wiring
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Probe DC Resistance: 4.0 ± 0.5 ohms (0.5 m length)
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Extension Cable Capacitance: 69.9 pF/m (21.3 pF/ft) typical
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Operating Temperature: -52°C to +177°C (-62°F to +351°F)
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Probe Tip Material: Polyphenylene sulfide (PPS)
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Probe Case Material: AISI 304 stainless steel
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Probe Cable: 75 Ω coaxial, FEP insulated
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Minimum Bend Radius: 25.4 mm (1.0 in)
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Maximum Torque: 0.56 N•m (5 in•lb) recommended finger tight
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Connector-to-Connector Torque (M10X1): Max 33.9 N•m (300 in•lb), recommended 11.3 N•m (100 in•lb)
Key Benefits & Performance
The 330905-00-05-05-02-05 excels in applications where chemical exposure is a concern. Its increased chemical resistance compared to the 3300 RAM probe allows reliable operation in process compressors. The probe's side-view characteristics improve accuracy when gapping at the same distance from the target, reducing measurement errors.
With a linear range starting at 0.25 mm from the target, this probe captures critical vibration data across a 1.5 mm span. The recommended gap of 1.0 mm ensures optimal performance, while the high incremental scale factor provides excellent resolution for condition monitoring systems.
Industry Applications
The Bently Nevada 330905-00-05-05-02-05 is ideal for:
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Process Compressors: The enhanced chemical resistance allows reliable operation in harsh media environments.
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Turbomachinery: Monitor shaft vibration and axial position in turbines and compressors.
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Pumps and Motors: Detect early signs of bearing wear or misalignment.
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General Rotating Equipment: Provide continuous protection against unplanned downtime.
In each scenario, the 330905-00-05-05-02-05 delivers accurate, repeatable measurements that help maintenance teams make informed decisions.
Installation & Setup Guidance
Proper installation is critical for accurate readings. Follow these guidelines:
- Mount the probe using the M10X1 thread. Apply the recommended torque: 33.9 N•m maximum, 11.3 N•m recommended for standard cases; for the first three threads, use 22.6 N•m max and 7.5 N•m recommended.
- Ensure the probe tip is clean and free from debris before installation.
- Set the initial gap to 1.0 mm (40 mils) from the target surface.
- Use the miniature coaxial ClickLoc connector for secure cable attachment. Verify the connection is tight to avoid signal loss.
- Route the cable with a minimum bend radius of 25.4 mm to prevent damage.
Maintenance & Reliability
Regular inspection of the probe and cable is recommended to ensure long-term reliability. Check for signs of wear, corrosion, or damage, especially in chemical environments. The 330905-00-05-05-02-05 is designed for extended service life, but periodic verification of the gap and scale factor helps maintain measurement accuracy.
Store the probe in a clean, dry environment within the specified temperature range. Avoid exceeding the maximum torque during installation to prevent thread damage.
Selection Guide & Purchasing Advice
When ordering the 330905-00-05-05-02-05, verify the following options to ensure compatibility:
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Unthreaded Length: 00 mm
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Overall Case Length: 50 mm
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Total Length: 0.5 meter (20 in)
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Connector: Miniature coaxial ClickLoc with standard cable
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Agency Approval: Multiple Approvals
For additional technical details or custom requirements, contact PLC Source PRO. Our team can assist with selecting the right probe configuration for your specific machinery.