Excellent PLC
Product Introduction
The Bently Nevada 330703-000-040-90-01-CN 3300 XL 11 mm Proximity Probe is an industrial-grade, non-contact displacement sensor engineered for continuous monitoring of shaft vibration and rotor position in critical rotating machinery. As part of the well-established 3300 XL series, it delivers exceptional accuracy and stability even in environments with high mechanical stress or electromagnetic interference. Its rugged stainless-steel housing and durable ceramic sensing tip ensure reliable performance in power generation plants, petrochemical facilities, and other heavy-duty industrial applications. The CN suffix designates a regional configuration while maintaining full compatibility with standard 3300 XL monitoring systems.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | 330703-000-040-90-01-CN |
| Series | 3300 XL Proximity Probes |
| Measurement Range | 11 mm non-contact displacement |
| Sensitivity | 5 mV/µm nominal |
| Frequency Response | DC to 10 kHz |
| Linearity | ±1 % of full scale |
| Insulation Resistance | >100 MΩ at 500 V DC |
| Dielectric Strength | 2.5 kV AC for 1 minute |
| Operating Temperature | –40 °C to +120 °C |
| Housing Material | Stainless steel |
| Probe Tip Material | High-density ceramic |
| Shock/Vibration Rating | Up to 20 g, 10–2000 Hz |
| Output Compatibility | Bently Nevada 3300 XL Proximitor sensors |
| Mounting Style | Standard precision mount |
| Total Length | 9.0 m |
| Weight | 0.43 kg |
Applications
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Turbomachinery Protection – Monitors turbine shafts for early detection of imbalance or misalignment.
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Generator and Motor Monitoring – Provides continuous vibration and displacement feedback for predictive maintenance.
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Petrochemical Operations – Suitable for pumps, compressors, and fans in refineries and chemical plants.
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Power Generation – Integrates with plant-wide systems to track shaft motion in real time.
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Heavy Industrial Equipment – Supports vibration analysis and machine diagnostics across diverse manufacturing lines.
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Upgrade & Retrofit Projects – Standard 11 mm design simplifies replacement of older probes without system redesign.
Advantages
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High Measurement Precision – Maintains ±1 % linearity across the full 11 mm range.
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Robust Construction – Stainless-steel housing and ceramic tip withstand corrosive and abrasive conditions.
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Excellent EMI Protection – Internal shielding ensures signal integrity in electrically noisy areas.
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Reliable Long-Term Stability – Factory calibration provides consistent accuracy over years of service.
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Seamless Integration – Fully compatible with Bently Nevada 3300 XL Proximitor systems and monitoring hardware.
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Predictive Maintenance Ready – Enables early detection of bearing wear, rotor bow, and shaft whip to reduce unplanned downtime.
Frequently Asked Questions (FAQ)
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What sensing principle is used in this probe?
It employs eddy-current technology to detect minute changes in the gap between the probe tip and the shaft surface. -
Is it fully compatible with 3300 XL Proximitor sensors?
Yes, the probe is designed for direct connection to any 3300 XL Proximitor within the specified calibration range. -
What is the nominal output sensitivity?
The probe provides approximately 5 mV/µm of shaft movement. -
Can it tolerate high vibration levels in turbine environments?
Yes, it is rated for up to 20 g in the 10–2000 Hz frequency range. -
Does it require on-site calibration after installation?
No field calibration is typically necessary; only routine system verification is recommended. -
How does it maintain signal quality in electrically noisy areas?
Multi-layer cable shielding and precision connectors reduce electromagnetic interference. -
Can it measure axial as well as radial displacement?
While optimized for radial monitoring, it can measure axial movement if mounted appropriately. -
What is the recommended probe-to-shaft target material?
It is designed for conductive metallic targets such as steel or other ferromagnetic alloys. -
Is the probe suitable for continuous online monitoring systems?
Yes, it is built for permanent installation and 24/7 operation in critical machinery. -
What is the operating temperature range for consistent performance?
The probe functions reliably between –40 °C and +120 °C.
Related Models – Same Series
| Model | Description |
|---|---|
| 330703-000-040-50-11-00 | 3300 XL 11 mm proximity probe, reverse-mount configuration |
| 330701-00-10-10-11-05 | 3300 XL 11 mm proximity probe, standard configuration |
| 330701-00-15-50-01-05 | 3300 XL 11 mm probe with extended cable |
| 330702-00-30-10-02-00 | 3300 XL 8 mm proximity probe |
| 330702-00-30-50-01-05 | 3300 XL 8 mm probe with long cable |
| 330703-000-040-50-12-00 | 3300 XL 11 mm probe with specialized tip configuration |
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|---|---|
| 330525-02-00 | Velomitor XA Piezo-Velocity Sensor |
| 330525-00 | Velomitor XA Piezo-Velocity Sensor |
| 330450-20 | High-Temperature Accelerometer |
| 330300-90-00 | High-Temperature Proximitor Sensor |
| 330302-000-050-10-90-01-00 | High-Temperature Proximity Probe |
| 330535-25-01 | Standard Temperature Extension Cable |
