Product Introduction
The Bently Nevada 330709-000-080-50-01-00 3300 XL 11 mm Proximity Probe is a high-precision sensor designed for non-contact vibration and position measurement in rotating machinery. This replacement-grade probe offers enhanced durability and accuracy compared to earlier models, making it an ideal upgrade for aging monitoring systems. With a robust construction and proven 3300 XL series performance, it ensures reliable data acquisition in harsh industrial environments.
Technical Specifications Breakdown
The 330709-000-080-50-01-00 features an 11 mm diameter sensing tip with a M16 x 1.5 thread case. Key electrical and mechanical parameters include:
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Probe DC Resistance: 7.2 ± 0.8 ohms (center to outer conductor at 5.0 m length)
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Operating Temperature Range: -52°C to +177°C (-62°F to +351°F)
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Case Material: AISI 304 stainless steel
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Probe Cable: 75 Ω triaxial, FEP-insulated, total length 5.0 m
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Maximum Thread Engagement: 24 mm
These specs ensure consistent performance across a wide temperature span and minimize signal loss over the cable run. The probe tip material (PPS) withstands abrasion and chemical exposure.
Industry Applications
This probe is commonly deployed in steam turbines, centrifugal compressors, pumps, and large electric motors. In one typical scenario, a chemical plant replaced older 5 mm probes with the 330709-000-080-50-01-00 to improve sensitivity on a 152 mm minimum shaft diameter. The result was earlier detection of shaft misalignment, reducing unplanned downtime by 30%.
Installation & Setup Guidance
Follow these steps for optimal installation:
- Ensure target surface is flat and clean; minimum recommended diameter is 30.5 mm.
- Thread the probe into the mounting hole at recommended torque of 21.1 N•m (187 in•lb) for M16x1.5 threads.
- Connect the miniature coaxial ClickLoc connector with connector protector; tighten to finger tight plus maximum 0.565 N•m.
- Route the cable with a minimum bend radius of 25.4 mm to avoid damage.
- For five-meter probes, use only a five-meter Proximitor sensor.
Troubleshooting & Common Issues
Proximity probes may encounter cross-talk when mounted too close to adjacent probes. Ensure spacing follows recommended guidelines: target size and shaft diameter must meet the 152 mm minimum for shaft diameter. If erratic readings occur, check the cable for kinks or cuts, and verify that the connector is firmly seated. Exposing the probe to temperatures below -34°C may cause pressure seal failure; avoid repeated thermal cycling.
For further assistance or to confirm compatibility, contact UBEST Automation at ubest101.myshopify.com.