Introduction to Part 330130-080-03-CN
The 330130-080-03-CN is an industrial eddy current proximity probe system. It is designed for non-contact measurement of vibration and position in rotating machinery. The system typically consists of a probe, an extension cable, and a proximitor (driver). This specific part number likely refers to the probe itself, an 8mm diameter sensor that generates a magnetic field to precisely measure the distance to a conductive target (like a shaft). Its primary function is to monitor key parameters such as shaft relative vibration, axial position, and speed (when used as a Keyphasor®). The "-CN" suffix may indicate specific certifications or packaging for the Chinese market.
Parameters / Specifications
The key technical parameters for the 330130-080-03-CN probe are summarized in the table below.
| Parameter | Specification | Notes / Explanation |
|---|---|---|
| Model Number | 330130-080-03-CN | 8mm Proximity Probe |
| Product Type | Eddy Current Displacement Sensor / Proximity Probe | |
| Sensor Diameter | 8 mm | Standard size for vibration and position measurement. |
| Probe Tip Style | Stainless Steel, Milled Flat | |
| Sensitivity | 200 mV/mil (7.87 V/mm) | Standard sensitivity for an 8mm probe. |
| Linear Range | 0 to 2.0 mm (0 to 80 mils) | Typical usable range from probe tip. |
| Frequency Response | 0 to 10,000 Hz | Suitable for measuring very high-speed vibrations. |
| Target Material | 4140 Steel (or equivalent AISI 1045/1020) | Requires a conductive, ferromagnetic target for optimal performance. |
| Operating Temperature | -35°C to +177°C (-31°F to +350°F) | Standard for industrial probe bodies. |
| Cable Length | Integrated, 1 meter (or specified by suffix) | Connects to a separate extension cable. |
| Electrical Connector | Military-Style (e.g., MS), 2-pin | Standard connector for industrial proximity probes. |
| Thread Size | M10 x 1 | Standard mounting thread for 8mm probes. |
| Dimensions (L x D) | Approx. 45mm (Length) x 8mm (Diameter) | Excluding the threaded portion and connector. |
| Weight | Approx. 50 - 100 grams | (Probe only) |
Application Scenarios
This proximity probe is a fundamental sensor used in machinery protection systems across various industries to prevent failures and monitor machine health.
Shaft Vibration Monitoring: Measuring radial vibration of shafts in turbines, compressors, pumps, and motors to detect unbalance, misalignment, and other mechanical faults.
Axial Thrust Position Monitoring: Measuring the axial position of a shaft to prevent damage from thrust bearing failure.
Keyphasor® / Speed Reference: Providing a once-per-turn pulse for measuring rotational speed and phase reference, which is essential for vibration analysis and machine balancing.
Differential Expansion Monitoring: Measuring the difference in thermal growth between a rotor and a stator in large steam turbines and gas turbines.
Eccentricity Monitoring: Measuring slow-roll bow or shaft misalignment at low speeds during startup and shutdown of turbines.
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