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- Bently Nevada
- 330100-50-01
- 3300 Preamplifier Sensor
- USA
- 5 meters
- 0.25 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Bently Nevada 330100-50-01 is a 3300 Series Proximitor (preamplifier) sensor module used in eddy-current proximity measurement systems. It is responsible for converting the raw probe signal into a stable, conditioned electrical output used by vibration monitoring and machinery protection systems.
It is a key part of the Bently Nevada 3300 XL proximity measurement chain, commonly used in turbines, compressors, and other critical rotating machinery.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330100-50-01 |
| Product Type | 3300 Preamplifier / Proximitor Sensor |
| System Series | 3300 / 3300 XL compatible architecture |
| Total Length | 5 meters |
| Function | Signal conditioning for proximity probes |
| Input Type | Eddy-current probe signal |
| Output Type | Linearized analog voltage output |
| Cable Type | Integrated sensor cable assembly |
| Weight | 0.25 kg |
| Environmental Use | Industrial machinery monitoring systems |
Function and Working Principle
The 330100-50-01 acts as a signal conditioning and amplification unit in an eddy-current measurement system.
Working Principle
- Proximity probe generates weak eddy-current signal
- Signal is transmitted via cable to preamplifier
- Preamplifier conditions and linearizes the signal
- Output becomes proportional to shaft displacement
x∝Vx \propto V
Where displacement (x) is proportional to conditioned output voltage (V).
Key Functions
- Amplifies and conditions probe signals
- Converts raw eddy-current signal into usable voltage output
- Ensures linear relationship between displacement and output
- Reduces noise and improves signal stability
- Enables accurate vibration and position monitoring
Role in Industrial Systems
This module is part of the 3-component proximity measurement system:
- Proximity probe (sensor head)
- Extension cable
- Preamplifier / Proximitor (this device)
Together, they form a complete system used for:
- Shaft vibration monitoring
- Radial displacement measurement
- Machinery protection and shutdown systems
Industrial Applications
- Steam turbines
- Gas turbines
- Compressors
- Pumps
- Generators
- Industrial fans
- Petrochemical rotating equipment
- Power generation plants
Installation Guidelines
- Mounted in protected enclosure or junction box
- Connected between probe and monitoring system
- Requires proper grounding for noise reduction
- Cable routing must avoid high EMI sources
- Must be securely fixed to prevent vibration interference
⚠️ Incorrect installation can cause signal distortion or measurement drift.
Compatible System Components
- Bently Nevada 3300 XL proximity probes
- Extension cables (3300 series)
- 3300 / 3500 monitoring systems
- Vibration analysis modules
- Machine protection systems
Recommended Alternative Models
| Model | Type | Key Feature |
|---|---|---|
| 330100-50-01 | Preamplifier sensor | Standard configuration |
| 330180-50-00 | Proximitor sensor | Common replacement unit |
| 3300 XL Proximitor series | Modern version | Improved stability and diagnostics |
| 991 series sensors | Integrated proximity systems | Compact alternative design |
Key Advantages
- Stable signal conditioning for vibration systems
- High accuracy displacement measurement
- Strong noise immunity in industrial environments
- Compatible with legacy and modern Bently systems
- Reliable long-term performance in harsh conditions
- Essential for machine protection systems
Technical FAQs
Q1: What is the main function of this device?
It conditions and amplifies signals from eddy-current proximity probes.
Q2: Does it measure vibration directly?
No, it processes probe signals that represent vibration/displacement.
Q3: Where is it used?
In rotating machinery monitoring systems such as turbines and compressors.
Q4: Is it a standalone sensor?
No, it must be used with a proximity probe and cable system.
Conclusion
The Bently Nevada 330100-50-01 Preamplifier Sensor is a critical signal conditioning component in eddy-current vibration monitoring systems. It ensures accurate conversion of probe signals into stable measurement data, enabling reliable monitoring and protection of industrial rotating machinery.