Product Overview
The Bently Nevada 330903-00-06-05-02-CN is a 3300 NSv proximity probe designed for reliable vibration and position monitoring in critical rotating machinery. This Industrial Automation Module offers enhanced chemical resistance compared to earlier 3300 RAM probes, making it suitable for process compressor applications. Its side-view characteristics outperform the 3000-series 190 probe when gapping at the same distance from the target.
Part of the 3300 NSv family, this probe is mechanically and electrically interchangeable with previous 3300 RAM probes, simplifying upgrades. The -CN agency approval option ensures compliance with country-specific requirements.
Technical Specifications
- Probe DC resistance (0.5 m): 4.0 ± 0.5 ohms
- Linear range: 1.5 mm (60 mils) from 0.25 to 1.75 mm (10 to 70 mils)
- Recommended gap setting: 1.0 mm (40 mils)
- Incremental scale factor (ISF): 7.87 V/mm (200 mV/mil) +12.5%/-20%
- Deviation from best fit straight line (DSL): less than ±0.06 mm (±2.3 mils)
- Frequency response: 0 to 10 kHz, +0, -3 dB typical up to 305 m (1000 ft) field wiring
- Probe tip material: Polyphenylene sulfide (PPS)
- Probe case material: AISI 304 stainless steel
- Probe cable: 75 Ω coaxial, FEP insulated, available in 0.5, 1, 5, or 7 m lengths
- Operating temperature: -52°C to +177°C (-62°F to +351°F)
- Maximum torque: 0.56 N•m (5 in•lb), recommended finger tight
- Minimum bend radius: 25.4 mm (1.0 in)
Performance and Applications
The 330903-00-06-05-02-CN delivers precise shaft vibration and position measurements in turbomachinery, compressors, and other rotating equipment. With a linear range of 1.5 mm and an incremental scale factor of 7.87 V/mm, it provides accurate data for condition monitoring and protection systems.
Its enhanced chemical resistance extends service life in harsh process environments, reducing downtime and maintenance costs. The probe's compatibility with existing 3300 RAM systems allows seamless retrofits without extensive rewiring.
Installation and Setup
For optimal performance, mount the probe with the recommended gap of 1.0 mm (40 mils). Use the M8X1 thread for secure installation. Apply finger-tight torque initially; do not exceed 0.56 N•m (5 in•lb). Route the cable with a minimum bend radius of 25.4 mm to avoid damage. Connect using the miniature coaxial ClickLoc connector for a reliable, quick connection.
Maintenance and Reliability
Regularly inspect the probe tip for contamination or wear. The PPS tip and stainless steel case resist corrosion, but verify the Viton O-ring seal integrity for pressure applications. Store within the specified temperature range to prevent degradation. Periodic calibration checks ensure measurement accuracy.
Compatibility and Integration
The 330903-00-06-05-02-CN works with Bently Nevada 3300 XL NSv Proximitor Sensors and monitors. Field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) is recommended, with a maximum length of 305 meters (1000 feet). Use three-conductor shielded triad cable for best signal integrity.
Selection Guide
Before purchasing, verify the unthreaded length (00 mm), overall case length (60 mm), total length (0.5 m), and connector type (miniature coaxial ClickLoc). Ensure the -CN agency approval matches your region. PLC Source PRO offers this new, original unit with factory packing and a 12-month warranty.