



Bently Nevada 128987-130-00-00 Proximity Sensor Probe
Overview — Precision Sensing for Demanding Rotating Machinery
The Bently Nevada 128987-130-00-00 Proximity Sensor Probe is engineered for high-accuracy shaft vibration and position measurement, forming a critical part of the 3300 XL Proximity Transducer System. Built for rugged industrial environments, this probe combines durability with exceptional linearity, ensuring stable and dependable readings even in harsh, high-temperature machinery applications. Its refined sensing performance makes it a trusted choice for turbomachinery, compressors, and high-value rotating assets where precision monitoring directly influences uptime and asset safety.
Technical Specifications — Mechanical & Performance Details
| Specification | Description |
|---|---|
| Probe Type | Proximity Sensor Probe (3300 XL Series) |
| Sensitivity | 7.87 mV/µm (200 mV/mil) typical |
| Linear Range | 2 mm to 3.4 mm (0.08 in to 0.135 in) depending on system configuration |
| Probe Tip Diameter | 8 mm |
| Cable Length | 5 m (per “130” length code) |
| Target Material | AISI 4140 steel or equivalent conductive material |
| Operating Temperature | –34°C to +177°C |
| Environmental Rating | Chemically resistant, oil-resistant, vibration-rated |
| Connector Type | Standard BNC-style probe connector |
| Dimensions | 241 mm × 24 mm × 163 mm (assembly routing length and profile vary by installation) |
| Weight | Approx. 0.18 kg (0.40 lb) |
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