Product: 330130-060-00-05
Category: Proximity Transducer System / Eddy-Current Displacement Probe
Overview:
The 330130-060-00-05 is a complete 5mm (≈0.197 in) diameter proximity probe system from the Bently Nevada 3300 XL NSv series. It is designed for non-contact measurement of vibration and position (displacement) of metallic rotating shafts. The system comprises a probe (sensor), an extension cable, and a proximitor (oscillator-demodulator). This specific configuration is a 5-meter overall length system (indicated by -05) with a standard 60 mm (2.36 in) sensing tip (-060) and typical -11 Vdc power/signal interface. It is a fundamental component for measuring key machinery parameters like radial vibration, axial thrust position, and eccentricity in industrial turbomachinery.
Key Parameters & Specifications
| Parameter | Specification / Description |
|---|---|
| System Function | Eddy-current displacement measurement for vibration and position. |
| Probe Diameter | 5 mm (0.197 inches). |
| Probe Tip Length | 60 mm (2.36 inches) from mounting nut to sensing tip. |
| Total System Length | 5 meters (16.4 feet) from probe tip to connector. This is the combined length of the probe's integrated cable and the extension cable. |
| Linear Range | Typically 0.25 to 2.3 mm (10 to 90 mils) from the probe tip, with a recommended target (scale factor) of 2.0 mm/Vdc (200 mV/mil). |
| Frequency Response | 0 to 10 kHz (adequate for most machinery vibration monitoring). |
| Target Material | Ferrous or non-ferrous conductive metals (e.g., steel, stainless steel). Requires calibration for specific material. |
| Temperature Rating | Probe: -40°C to +177°C (-40°F to +350°F) for standard version. High-temperature versions are available. |
| Output Signal | -1 to -17 Vdc (or 0 to -18 Vdc) linear analog signal proportional to the gap between the probe tip and the shaft. Requires a compatible Bently Nevada Proximitor (e.g., 330180-50-00). |
| Connectors | Typically a MIL-C-5015 style or SMB connector at the cable end, mating with the extension cable or proximitor. |
| Mounting | Mounts through a standard 8 mm drilled and tapped hole, secured with an included locking nut and seal. |
| Probe Body Material | Stainless steel. |
| Cable Jacket | High-temperature, abrasion-resistant, fluoropolymer (e.g., FEP/Tefzel) for durability in harsh environments. |
| Dimensions (Probe) | Body Diameter: 8 mm (at threads) x Length: 60 mm tip + connector tail. |
| Weight (Probe & Cable) | Approx. 0.3 - 0.5 kg (0.66 - 1.1 lbs) for the 5-meter assembly, varying with exact cable type. |
Primary Application Scenarios
Radial Vibration Monitoring on Small to Medium-Sized Shafts:
The 5mm diameter makes it ideal for shafts where space is constrained, such as on small steam turbines, centrifugal compressors (especially inline or multistage), motor-driven pumps, gearboxes, and high-speed spindles.
Axial Thrust Position Monitoring:
Used to measure the axial displacement of a shaft relative to its thrust bearing. This is critical for detecting thrust bearing wear or failure in compressors, turbines, and large pumps.
Eccentricity & Runout Measurement:
Used for slow-roll (turning gear) measurements to determine shaft mechanical and electrical runout, which is essential for establishing true vibration levels during operation.
Key Phasor® / Speed Reference:
Often used as the Key Phasor probe to provide a once-per-revolution timing pulse for vibration phase analysis and speed measurement. The 5mm size is common for this application on a wide variety of machines.
General Industrial Machinery Protection:
Oil & Gas: Pipeline compressors, pump monitoring.
Power Generation: Auxiliary turbine drives, boiler feed pumps, fans.
Hydroelectric: Guide bearing monitoring on smaller units.
Chemical & Process Industries: Critical reactor stirrers, mixers, and process compressors.
Found in virtually all industries with critical rotating equipment:
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