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• Brand: Bently Nevada
• Series: 3300 XL Proximity Probe Series
The 3300 XL series consists of rugged, high‑precision proximity transducers designed for continuous monitoring of rotating machinery. This series is widely used in industrial environments where early detection of mechanical faults is critical to reliability and safety.
The Bently Nevada 330104‑00‑07‑05‑01‑05 is an eddy current proximity sensor engineered for measuring radial displacement and vibration of rotating shafts. It employs a high‑frequency electromagnetic field to detect minute changes in the distance between the probe tip and a metal target surface. The resulting signal is used to monitor dynamic behavior in machinery, detect imbalance, misalignment, looseness, and other mechanical conditions that can lead to failures.
This specific model combines a moderate cable length with a particular connector and termination configuration indicated by the suffix 01‑05. The “07‑05” section of the model designates a slightly different probe configuration compared with other variants in the same family, sometimes associated with alternative sensing range or calibration tailored for certain plant applications. The probe’s rugged housing and precision internal components are designed to operate reliably in demanding industrial environments.
This proximity probe is widely employed across industrial sectors where precision shaft movement monitoring is essential. Typical applications include:
• Shaft vibration detection on turbines within power generation facilities.
• Condition monitoring on centrifugal compressors in petrochemical and refinery operations.
• High‑speed pumps in water treatment, mining, or chemical processing plants where early fault detection extends service life.
• Monitoring large electric motors and generators in manufacturing facilities requiring predictive maintenance.
• Analysis of gearbox and drive train performance in heavy industrial machinery.
• Journal and bearing clearance measurement where bearing degradation can signal impending failure.
| Parameter | Specification |
|---|---|
| Model | 330104‑00‑07‑05‑01‑05 |
| Sensor Type | Eddy Current Proximity Probe |
| Measurement Range | ±3.81 mm (±0.150 in) |
| Frequency Response | 0.5 Hz to 12 kHz |
| Linearity | ±1 % of full scale |
| Probe Body Diameter | 12.7 mm (0.50 in) |
| Probe Length | 50 mm |
| Cable Length | 5 m |
| Connector / Termination | Industrial circular connector (01‑05 configuration) |
| Operating Temperature | –40 °C to +125 °C |
| Weight (kg) | 0.42 |
| Mounting | Threaded barrel or clamp mount |
| Output | Differential AC signal |
| Target Material | Conductive rotating shaft surfaces |
| Model | Measurement Range | Cable Length | Weight (kg) | Notes |
|---|---|---|---|---|
| 330104‑00‑06‑50‑02‑CN | ±2.54 mm | 2 m | 0.35 | Standard measurement range variant |
| 330104‑00‑06‑20‑00 | ±2.54 mm | 20 m | 0.40 | Long cable configuration |
| 330104‑00‑06‑90‑02‑00 | ±2.54 mm | 90 m | 0.65 | Very long cable length configuration |
| 330108‑00‑08‑50‑02‑CN | ±3.81 mm | 2 m | 0.41 | Larger measurement range |
| 330110‑00‑06‑50‑12‑05 | ±2.54 mm | 12 m | 0.38 | Cable length and connector variant |
Each of these related models belongs to the same 3300 XL proximity probe family. Differences between them lie in sensing range, cable length, and connector type, allowing flexibility in installation and measurement requirements.
| Model | Type | Key Parameter | Weight (kg) | Notes |
|---|---|---|---|---|
| 3500/05 | Velocity Vibration Sensor | 0–100 mm/s RMS | 0.50 | Common velocity sensor used in industrial vibration monitoring |
| 3500/22M | Accelerometer | ±50 g range | 0.45 | High sensitivity accelerometer for dynamic analysis |
| 330200‑00‑10‑50‑02‑CN | Proximity Probe | ±2.54 mm, 10 m cable | 0.39 | Proximity variant with moderate cable length |
| 3500/72M | Machinery Protection Relay | Multi‑channel protection | 1.20 | Protection module for threshold alarms and shutdown |
| 330100‑00‑06‑50‑02‑CN | Proximity Probe | ±2.54 mm, standard cable | 0.36 | Baseline proximity sensor model |
QA1: What is the primary function of the 330104‑00‑07‑05‑01‑05?
A1: It measures shaft displacement and vibration in rotating machinery using the eddy current principle and provides a continuous analog output.
QA2: What is the measurement range of this probe?
A2: The measurement range is ±3.81 mm, suitable for applications with larger displacement needs than standard probes.
QA3: What environments can this probe operate in?
A3: It is designed for industrial environments with temperature variation, vibration, and moderate exposure to fluids and contaminants.
QA4: Why is the cable length 5 m?
A4: A 5 m cable provides flexibility for mounting near machinery and routing to monitoring cabinets without excessive cable.
QA5: What does the “01‑05” connector configuration mean?
A5: It identifies a specific connector type and wiring termination used for certain installation standards.
QA6: Is this probe compatible with standard monitoring modules?
A6: Yes, it is designed to interface with industry‑standard monitoring and protection electronics compatible with 3300 XL series sensors.
QA7: How does this sensor contribute to maintenance strategies?
A7: By continuously reporting displacement and vibration data, it enables condition‑based monitoring and early fault detection, reducing unplanned outages.
QA8: Does it require frequent calibration?
A8: No, its solid‑state design and low‑drift characteristics reduce the need for frequent recalibration; routine checks are recommended.
QA9: What kinds of machinery can benefit from this probe?
A9: Turbines, compressors, pumps, motors, and industrial drive trains all benefit from accurate shaft movement monitoring.
QA10: What installation practices ensure accuracy?
A10: Proper alignment with the target shaft surface, secure mounting, and careful cable routing to avoid strain or interference ensure the best signal quality.