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Product Introduction
The Bently Nevada 330104-01-02-50-02-02 3300 XL 8 mm Proximity Probe is a high-precision, non-contact eddy current sensor engineered for monitoring rotating machinery in industrial environments. As part of the 3300 XL series, this probe delivers accurate measurements of shaft displacement and vibration, providing essential data for machine protection, condition monitoring, and predictive maintenance.
Featuring an 8 mm probe diameter and a total cable length of 5 meters, this model provides flexibility for installation on large or complex machinery. Its robust stainless steel housing and mineral-insulated cable ensure resistance to vibration, temperature extremes, and electromagnetic interference. Fully compatible with Bently Nevada 3300 XL monitoring systems, this probe supplies reliable, high-fidelity signals for detecting early-stage mechanical faults and preventing unplanned downtime.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | 330104-01-02-50-02-02 |
| Product Type | 8 mm Eddy Current Proximity Probe |
| Series | 3300 XL |
| Probe Diameter | 8 mm |
| Total Length | 5 meters |
| Measurement Range | Up to 1.27 mm (dependent on system configuration) |
| Linear Range | ±10% of calibrated gap |
| Frequency Response | DC to 10 kHz |
| Sensitivity | 20 mV/µm (typical with 3300 XL monitoring system) |
| Resolution | <0.5 µm |
| Operating Temperature | -40°C to +120°C (probe head) |
| Storage Temperature | -50°C to +150°C |
| Probe Material | Stainless steel housing with mineral-insulated cable |
| Humidity | 0–95% non-condensing |
| Certifications | CE, UL, CSA |
| Weight | 1.615 kg |
| Mounting | Threaded sleeve or custom machinery mounting |
| Compatibility | Bently Nevada 3300 XL Series Monitoring Systems |
Applications
The 330104-01-02-50-02-02 is suitable for high-accuracy monitoring of rotating machinery where shaft position and vibration measurement are critical:
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Steam and Gas Turbines – Measures shaft displacement to detect imbalance, misalignment, and rotor instability.
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Compressors – Monitors rotor vibration and shaft position for safe operation.
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Pumps – Detects cavitation, bearing wear, and shaft deflection.
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Generators and Motors – Ensures smooth operation and early detection of anomalies.
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Petrochemical and Refinery Plants – Functions reliably in harsh, high-vibration environments.
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Machine Protection Systems – Supports API 670-compliant condition monitoring and protection.
Advantages
The Bently Nevada 330104-01-02-50-02-02 8 mm Probe provides multiple operational benefits:
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High Accuracy – Offers precise measurement of displacement and vibration with excellent linearity.
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Rugged Construction – Stainless steel housing and mineral-insulated cable resist harsh industrial environments.
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Wide Frequency Response – Detects both low-speed and high-speed shaft vibrations.
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Seamless Integration – Fully compatible with 3300 XL monitoring systems for real-time protection.
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Maintenance-Free Operation – Non-contact design minimizes wear and maintenance requirements.
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Temperature and Vibration Resistant – Reliable under extreme environmental conditions.
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Predictive Maintenance Support – Early detection of anomalies helps prevent unplanned downtime.
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Flexible Installation – Long 5-meter cable allows installation across large machinery or complex plant layouts.
Frequently Asked Questions (FAQ)
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Which monitoring systems is this probe compatible with?
It integrates fully with Bently Nevada 3300 XL monitoring systems, providing linearized displacement and vibration signals. -
What is the nominal sensitivity of this probe?
The nominal sensitivity is approximately 20 mV/µm when used with a 3300 XL monitoring system. -
What frequency range can the probe detect?
The probe supports DC to 10 kHz, enabling detection of both low-speed and high-speed machinery vibrations. -
What is the operating temperature range of the probe head?
Reliable operation is maintained between -40°C and +120°C while ensuring measurement accuracy. -
Can this probe operate in high-humidity or industrial environments?
Yes, it is designed to withstand 0–95% non-condensing humidity and harsh industrial conditions. -
What is the linear measurement range of the probe?
±10% of the calibrated gap ensures proportional and accurate output. -
Does the probe require external power?
No, power and signal conditioning are supplied by the 3300 XL monitoring system. -
Is the probe suitable for API 670-compliant protection systems?
Yes, it integrates seamlessly into API 670-compliant monitoring platforms. -
Does cable length affect measurement accuracy?
Yes, the probe is calibrated for its 5-meter cable to ensure signal fidelity and accuracy. -
What mounting options are recommended?
Threaded sleeve or custom machinery mounting is recommended to maintain proper alignment and calibration.
Related Models (Same Series)
| Model Number | Probe Type | Description |
|---|---|---|
| 330104-01-02-50-02-01 | 8 mm Proximity Probe | Standard 3300 XL probe with 3-meter cable |
| 330104-01-02-50-02-03 | 8 mm Proximity Probe | High-temperature variant |
| 330104-01-02-50-02-04 | 8 mm Proximity Probe | Extra-flexible cable version |
| 330105-01-02-50-02-02 | 8 mm Proximity Probe | High-sensitivity configuration |
| 330106-01-02-50-02-02 | 8 mm Proximity Probe | API 670-compliant variant |
| 330104-01-02-50-02-05 | 8 mm Proximity Probe | Extended linear range version |
Popular Models from the Same Brand (Bently Nevada)
| Model Number | Product Type | Description |
|---|---|---|
| 330104-01-02-50-01 | 8 mm Proximity Probe | Standard 3300 XL probe for turbines and compressors |
| 330104-01-02-50-03 | 8 mm Proximity Probe | High-accuracy probe for critical machinery |
| 330105-01-02-50-01 | 8 mm Proximity Probe | High-sensitivity version for vibration monitoring |
| 330130-01-02 | 3300 XL Proximity Probe | Compact probe for smaller machinery |
| 330140-01-02 | 3300 XL Proximity Probe | Extended range probe for large turbines |
| 330150-01-02 | 3300 XL Proximity Probe | API 670-compliant probe for generators |
