Configured for high-frequency signal conditioning in vibration monitoring platforms, the Bently Nevada 330780-50-00 (330780 Proximitor Sensor) provides direct physical signal translation for 11 mm proximity probe systems.
Suffix Breakdown & Model Matrix
| Suffix | Description |
|---|---|
| 50 | 5.0 metre (16.4 feet) system length, panel mount |
| 00 | No agency approval required |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330780-50-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.82 kg |
| Dimensions | Standard 3300 XL enclosure geometry |
| Operating Temp | -51 deg C to +100 deg C |
| Power Consumption | 12 mA maximum |
| Target Requirements | 30.5 mm (1.2 in) diameter flat target |
Eddy-Current Probe Scaling and Rotor Dynamics
The 330780-50-00 utilizes an internal high-frequency oscillator to drive the 11 mm probe, generating a linear output voltage proportional to shaft displacement. The system scale factor is set for 11 mm probe characteristics. During site commissioning, gap voltage validation is required to ensure the sensor output targets -10 VDC at the midpoint of the linear range. This verification is required for accurate rotor dynamics interpretation, including shaft centerline position and vibration orbit analysis. Cross-talk suppression is ensured by maintaining specific physical separation distances between adjacent probe installations to prevent mutual interference from the high-frequency carrier signals.
Frequently Asked Questions
Q: Does the 11 mm probe require a different gap voltage target than the 8 mm series?
A: No. The standard gap voltage validation target remains -10 VDC when the probe is positioned at the electrical center of its linear range.
Q: Is this sensor compatible with shorter system lengths?
A: The 330780-50-00 is factory-calibrated for a specific 5.0 metre system length. Deviating from the specified system length will affect the accuracy and phase shift of the transducer output.
Field Installation Guidelines
- Secure the sensor housing to a grounded panel to ensure electrical continuity and EMI immunity.
- Ensure coaxial cable connectors are fully seated and hand-tightened. Do not use tools to over-torque the connectors, as this may damage the internal dielectric or connector threads.
- Keep coaxial cable runs segregated from high-power AC lines or motor variable frequency drive cabling to mitigate electromagnetic interference.
- Verify the integrity of the coaxial shield connection at the monitor termination point to avoid ground loop current paths.
- Prior to system startup, measure the gap voltage at the monitor output terminals to confirm the sensor is operating within the linear operating range.
What's clients say about us
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Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
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Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
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Operations Director, GermanyRelated Products
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Guide
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