Product Overview
The Bently Nevada 330903-00-04-05-01-00 is a 3300 NSv proximity probe designed for precise vibration and position monitoring in rotating machinery. This industrial automation module offers enhanced chemical resistance and side-view characteristics, making it ideal for process compressor applications. With a 0.5-meter total length and M8 x 1 thread, it integrates seamlessly with existing 3300 monitoring systems.
Key Specifications
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Linear Range: 1.5 mm (60 mils), starting at 0.25 mm (10 mils) from target
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) with interchangeability error
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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
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Operating Temperature: -52°C to +177°C
Technical Specifications
| Parameter |
Value |
| Probe dc Resistance (0.5 m) |
4.0 ± 0.5 ohms |
| Extension Cable dc Resistance (Center) |
0.220 Ω/m |
| Extension Cable dc Resistance (Shield) |
0.066 Ω/m |
| Extension Cable Capacitance |
69.9 pF/m typical |
| Field Wiring |
0.2 to 1.5 mm² (16-24 AWG), max 305 m |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| Deviation from Best Fit Straight Line |
Less than ±0.06 mm |
| Target Size (Flat) |
Minimum 8.9 mm diameter; recommended 13 mm |
| Probe Cable |
75 Ω coaxial, FEP insulated |
| Max Torque |
0.56 N•m (5 in•lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Storage Temperature |
-52°C to +177°C |
Applications
This 330903-00-04-05-01-00 is widely used in turbomachinery, compressors, and pumps for shaft vibration and axial position monitoring. Its enhanced chemical resistance supports harsh process environments. In a typical compressor train, the probe reliably measures radial vibration, helping operators detect early bearing wear.
Installation & Setup
Mount the probe with finger-tight torque (max 0.56 N•m). Ensure the target surface is clean and flat. For optimal linearity, set the gap to 1.0 mm (40 mils). Use shielded triad cable for field wiring, keeping total length under 305 meters to preserve frequency response.
Maintenance & Reliability
Regularly inspect the probe tip for contamination or damage. The AISI 304 stainless case and PPS tip resist corrosion. Verify the cable bend radius stays above 25.4 mm to prevent stress fractures. Periodic calibration checks ensure accurate readings.
Compatibility
The 330903-00-04-05-01-00 is mechanically and electrically interchangeable with previous 3300 RAM probes. It works with Bently Nevada 3300 XL NSv Proximitor Sensors and standard 3300 monitoring systems. The miniature ClickLoc connector ensures secure, reliable connections.
Selection Guide
Before ordering, confirm your required unthreaded length, overall case length, and total length options. This model includes a 0.5-meter cable. For custom pressure testing or special configurations, consult your supplier. PLC Source PRO offers genuine Bently Nevada parts with full warranty.