Product Overview: Bently Nevada 330905-05-08-05-02-05
The Bently Nevada 330905-05-08-05-02-05 is a precision 3300 NSv proximity probe designed for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module features an M10x1 thread, a 50 mm unthreaded length, an 80 mm overall case length, and a 0.5 meter cable with a miniature coaxial ClickLoc connector. It is mechanically and electrically interchangeable with the previous 3300 RAM probe, offering enhanced chemical resistance for demanding process compressor applications.
Key Technical Specifications
-
Linear Range: 1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils)
-
Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) with interchangeability error +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) with up to 305 meters of field wiring
-
Probe DC Resistance: 4.0 ± 0.5 ohms (for 0.5 m probe)
-
Extension Cable Capacitance: 69.9 pF/m typical
-
Operating Temperature: -52°C to +177°C (-62°F to +351°F)
-
Probe Tip Material: Polyphenylene sulfide (PPS)
-
Probe Case Material: AISI 304 stainless steel
Applications and Use Cases
The 330905-05-08-05-02-05 excels in vibration monitoring on turbomachinery, compressors, and pumps. Its superior side-view characteristics make it ideal for axial position measurements on shafts, even those smaller than 13 mm in diameter, where scale factor variations can be minimized by adjusting the gap. The enhanced chemical resistance supports use in process compressors where aggressive media may be present.
Installation and Setup Guidance
Install the probe with finger-tight torque, then apply a maximum of 0.56 N•m (5 in•lb) to secure it. For M10x1 probe cases, ensure the first three threads are engaged with a maximum rated torque of 22.6 N•m (200 in•lb) and recommended 7.5 N•m (66 in•lb). Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable. Connect using the miniature coaxial ClickLoc connector, ensuring a secure fit. For optimal linearity, set the gap to 1.0 mm (40 mils) from the target.
Maintenance and Reliability
The 330905-05-08-05-02-05 is built for long service life with a PPS tip and stainless steel case. The Viton O-ring seals the probe against differential pressure, but probes are not pressure tested prior to shipment. If pressure sealing is critical, contact our custom design department for testing. Regularly inspect the cable for bends exceeding the minimum radius and verify connector tightness.
Compatibility and Integration
This probe is designed for use with Bently Nevada 3300 XL NSv Proximitor Sensors and extension cables. Field wiring should use three-conductor shielded triad cable with a maximum length of 305 meters (1,000 feet) between the sensor and monitor. The probe is compatible with monitoring systems that accept standard proximity probe signals.
Buying Guide
Before purchasing the 330905-05-08-05-02-05, verify your required cable length, thread type, and connector style. This model includes a 0.5 m cable, M10x1 thread, and ClickLoc connector. For other options, contact PLC Source PRO to ensure you receive the exact configuration for your application. All units are new and original in factory packing with a 12-month warranty.