Product Overview
The Bently Nevada 330904-08-10-05-12-05 is a 3300 NSv proximity probe engineered for precise vibration and position monitoring in critical rotating machinery. This industrial automation module delivers reliable performance in process compressor applications where chemical resistance and accurate gap measurement are essential. With its M8x1 thread and stainless steel armor, the 330904-08-10-05-12-05 withstands harsh environments while maintaining measurement integrity.
Technical Specifications
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Model: 330904 - 3300 NSv Probe, M8X1 thread, with armor
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Unthreaded Length: 80 mm (option -08)
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Overall Case Length: 100 mm (option -10)
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Total Length: 0.5 meter (20 in) (option 05)
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Connector and Cable Type: Miniature coaxial ClickLoc connector, FluidLoc cable (option 12)
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Agency Approval: Multiple Approvals (option 05)
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Probe DC Resistance: 4.0 ± 0.5 ohms (for 0.5 m length)
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Linear Range: 1.5 mm (60 mils), starting at approximately 0.25 mm (10 mils) from target
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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
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Probe Tip Material: Polyphenylene sulfide (PPS)
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Probe Case Material: AISI 304 stainless steel (SST)
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Probe Cable: 75 Ω coaxial, FEP insulated; available lengths: 0.5, 1, 5, or 7 meters
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Operating Temperature: -52°C to +177°C (-62°F to +351°F)
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Storage Temperature: -52°C to +177°C (-62°F to +351°F)
Performance and Compatibility
The 330904-08-10-05-12-05 is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM proximity probe and extension cable, making it a drop-in replacement for existing installations. Its side-view characteristics outperform the 3000-series 190 probe, providing more accurate gap measurements. The increased chemical resistance of the NSv design expands its applicability in process compressors and other corrosive environments.
Installation & Setup
Proper installation begins with verifying the probe's orientation and gap. The recommended gap setting is 1.0 mm (40 mils). Use the provided ClickLoc connector for secure cable attachment. For the probe case, apply a maximum torque of 7.3 N·m (65 in·lb) with a recommended torque of 5.1 N·m (45 in·lb). The probe thread engagement should not exceed 12 mm for M8x1. Ensure the minimum bend radius of 25.4 mm (1.0 in) is respected for the cable, whether or not stainless steel armor is used.
Maintenance & Reliability
The 330904-08-10-05-12-05 is built with AISI 304 stainless steel and a PPS tip, offering excellent resistance to chemical attack. Its Viton O-ring seals differential pressure between the tip and case, ensuring reliable operation in pressurized environments. Regular inspection of the cable and connector is recommended to prevent wear. The probe operates over a wide temperature range from -52°C to +177°C, making it suitable for extreme conditions.
Selection Guide
When selecting a replacement probe, confirm your system requirements: shaft diameter, target material, and cable length. The 330904-08-10-05-12-05 is configured with a 0.5-meter total length, M8x1 thread, and armor. For applications requiring different lengths or connector types, other options are available. Trust PLC Source PRO to supply genuine, factory-new components with full warranty support.