Introduction
The EPRO 330101-30-63-10-02-CN is a specific configuration of a Proximitor Transducer, a critical signal conditioning unit within the EPRO (Baker Hughes) machinery condition monitoring system. This device forms the essential link between a non-contact eddy current proximity probe and the monitoring system.
Its primary function is to power an 8 mm eddy current probe, demodulate the probe's high-frequency RF signal, and convert the information about the gap between the probe tip and a rotating shaft into stable, standardized DC voltage outputs. These outputs represent both dynamic vibration (AC voltage) and static position (DC gap voltage). The specific suffixes indicate a robust configuration with a 6-meter integrated cable, a 2 mm linear range, and a military-style connector, with the -CN suffix indicating it is configured or certified for the Chinese market.
Parameters / Specifications
The key technical specifications for the EPRO 330101-30-63-10-02-CN are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 330101-30-63-10-02-CN |
| Product Line / Type | EPRO (Baker Hughes) Proximitor Transducer |
| Function | Signal Conditioner for 8 mm Eddy Current Probes |
| Compatible Probes | 8 mm Eddy Current Probes (e.g., PR 6423 series) |
| Input Power | Typically +24 V DC |
| Output Signals | Vibration/Displacement: -1 to -11 V DC (or -2 to -22 V DC) proportional to gap. Gap Voltage: A separate DC voltage proportional to the average gap. |
| Linear Range | 2 mm (This is a key interpretation of the -02 suffix, e.g., 1.0 mm to 3.0 mm). |
| Frequency Response | 0 to 10 kHz (-3 dB) |
| Operating Temperature | -35°C to +85°C (-31°F to +185°F) |
| Integrated Cable Length | 6.0 meters (This is a key interpretation of the -63 suffix). |
| Connector | 5-pin, Military-style (MS) connector (This is a key interpretation of the -30 suffix). |
| Mounting Thread | Standard mounting provisions (e.g., for a bracket). |
| Housing Dimensions (Approx.) | Compact metal enclosure, typically around 80 mm x 60 mm x 40 mm (L x W x H). |
| Weight (Approx.) | 0.66 lbs (0.3 kg) |
| Market Certification | CN (Configured/Certified for use in the Chinese market) |
| Degree of Protection | IP67 (Typical for such industrial housings) |
Note: This proximitor requires a compatible 8 mm eddy current probe and a suitable power supply to form a complete measuring chain. The -10 suffix typically specifies a standard temperature rating.
Application Scenarios
This proximitor transducer is designed for continuous, real-time monitoring on critical rotating machinery. Its long 6-meter integrated cable and robust connector make it ideal for installations where the transducer must be located a significant distance from the junction box.
Typical application scenarios include:
Turbine and Compressor Monitoring:
Mounted on the bearing housings of gas and steam turbines or centrifugal compressors to provide conditioned vibration and position signals to the main protection system. The long cable allows for flexible routing in complex machinery layouts.
Axial Thrust Position Monitoring:
Installed at the shaft end of turbines and compressors to monitor the axial movement of the rotor. The 2mm linear range is well-suited for measuring the total float within thrust bearings.
Remote Sensor Applications:
Used in applications where the proximitor needs to be installed close to the sensor but far from the central monitoring rack, reducing the need for long and costly extension cables.
High-Reliability Industrial Environments:
The military-style connector provides a secure, vibration-resistant connection, making it suitable for demanding environments in power generation, oil & gas, and heavy industry.
Industries of Use:
Power Generation (Gas, Steam, and Hydro Turbines)
Oil & Gas (Pipeline Compressors, Pumps)
Petrochemical & Refining
Heavy Industrial Manufacturing
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