Product Overview
When you need dependable vibration and position monitoring in demanding industrial environments, the Bently Nevada 330904-08-15-10-02-05 delivers precise, real-time data. This 3300 NSv proximity probe is engineered for process compressor applications where chemical resistance is critical. The 330904-08-15-10-02-05 is part of the trusted 3300 NSv series, offering superior side-view characteristics compared to earlier 3000-series 190 probes when gapping at the same distance from the target.
With a 1.0 meter (39 in) total length and M8X1 thread with armor, this probe is built to withstand harsh conditions. It is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM probe and extension cable, making it a straightforward upgrade for existing installations. Choose the 330904-08-15-10-02-05 for reliable performance in your most critical rotating machinery.
Key Specifications
The 330904-08-15-10-02-05 offers a linear range of 1.5 mm (60 mils), beginning at approximately 0.25 mm (10 mils) from the target. The incremental scale factor (ISF) is 7.87 V/mm (200 mV/mil) with +12.5%/-20% interchangeability error. Deviation from best fit straight line (DSL) is less than ±0.06 mm (±2.3 mils). The probe operates over a frequency response of 0 to 10 kHz with +0, -3 dB typical, even with up to 305 meters (1000 feet) of field wiring.
Probe DC resistance for the 1.0 meter length is 4.2 ± 0.5 ohms. The probe tip material is polyphenylene sulfide (PPS), and the case is AISI 304 stainless steel. The 75 ohm coaxial cable uses fluoroethylene propylene (FEP) insulation. Operating and storage temperature range is -52°C to +177°C (-62°F to +351°F).
| Parameter |
Value |
| Linear Range |
1.5 mm (60 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 |
| Probe DC Resistance (1.0 m) |
4.2 ± 0.5 ohms |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Operating Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
Applications
The 330904-08-15-10-02-05 excels in process compressor applications where chemical resistance is essential. Its increased chemical resistance over the 3300 RAM probe allows safe operation in aggressive media. Use it for axial position measurements and radial vibration monitoring on rotating shafts. For shafts smaller than 13 mm (0.5 in) diameter, expect a change in scale factor; reducing the gap between probe and target helps limit this effect.
Typical applications include:
- Process compressors
- Turbomachinery monitoring
- Pumps and fans
- General rotating equipment protection
Installation Guidance
Install the 330904-08-15-10-02-05 with care to ensure accurate readings. The recommended torque for the probe case is finger tight, with a maximum torque of 0.56 N•m (5 in•lb). For 1/4-28 or M8X1 probe cases, the maximum rated torque is 7.3 N•m (65 in•lb) and the recommended torque is 5.1 N•m (45 in•lb). Ensure the thread engagement does not exceed 12 mm.
Field wiring should use a three-conductor shielded triad cable with conductors from 0.2 to 1.5 mm² (16 to 24 AWG) or 0.25 to 0.75 mm² (18 to 23 AWG) with ferrules. Keep the maximum length between the Proximitor Sensor and the monitor at or below 305 meters (1000 feet) to avoid signal rolloff at high frequencies. The minimum bend radius for the probe cable is 25.4 mm (1.0 in).
Maintenance and Reliability
The 330904-08-15-10-02-05 requires minimal maintenance due to its robust construction. The PPS tip and stainless steel case resist corrosion and wear. Periodically inspect the probe cable for damage, especially at connection points. Verify the recommended gap setting periodically to maintain measurement accuracy. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring; however, it is not pressure tested before shipment. For applications requiring pressure seal verification, contact the custom design department.
Compatibility and Integration
This probe is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM proximity probe and extension cable, ensuring seamless integration into existing systems. It works with 3300 XL NSv Proximitor Sensors and Bently Nevada monitors. The miniature coaxial ClickLoc connector provides a secure, reliable connection.
Selection Guide
When selecting a replacement or upgrade, verify the unthreaded length, overall case length, and total length match your application requirements. The 330904-08-15-10-02-05 has an 80 mm unthreaded length, 150 mm overall case length, and 1.0 meter total length. Confirm the thread type (M8X1) and connector type (miniature coaxial ClickLoc). For personalized assistance, contact PLC Source PRO to ensure you get the exact part for your system.