Introduction
The EPRO 330101-29-50-10-02-05 is a specific configuration of a Proximitor Transducer, a critical signal conditioning unit within the EPRO (now part of Baker Hughes) machinery condition monitoring ecosystem. 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 in its part number indicate a robust configuration with a 5-meter integrated cable and a 5-pin military-style connector, making it suitable for demanding industrial environments where reliable, continuous monitoring of radial vibration and axial position is paramount.
Parameters / Specifications
The key technical specifications for the EPRO 330101-29-50-10-02-05 are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 330101-29-50-10-02-05 |
| 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 | 5.0 meters (This is a key interpretation of the -50 suffix). |
| Connector | 5-pin, Military-style (MS) connector (This is a key interpretation of the -29 suffix). |
| Mounting Thread | M10x1 (This is a key interpretation of the -05 suffix). |
| Housing Dimensions (Approx.) | Compact metal enclosure, typically around 80 mm x 60 mm x 40 mm (L x W x H). |
| Weight (Approx.) | 0.55 lbs (0.25 kg) |
| 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 connectorized design with a 5-meter cable offers a balance between installation flexibility and robust connection integrity.
Typical application scenarios include:
Turbine and Compressor Vibration Monitoring:
Mounted on the bearing housings of gas and steam turbines or centrifugal compressors to measure radial shaft vibration. The 5-pin connector provides a secure and reliable connection in high-vibration environments, essential for detecting unbalance, misalignment, and other rotor dynamic issues.
Axial Thrust Position Monitoring:
Installed at the shaft end of turbines and compressors to monitor the axial movement (position) of the rotor. The 2mm linear range is well-suited for measuring the total float within thrust bearings, providing critical protection against catastrophic failure.
Shaft Eccentricity (Slow-Roll) Monitoring:
Used to measure the bend or bow in a large turbine shaft when it is rotating at very low speeds during startup or coast-down. This helps prevent damage that can occur if the machine is brought up to speed with a significant rotor bow.
Keyphasor® Reference Signal:
Used with a once-per-revolution notch on the shaft to provide a Keyphasor signal for measuring vibration phase angle. This is vital for rotor balancing and advanced diagnostic analysis.
Industries of Use:
Power Generation (Gas, Steam, and Hydro Turbines)
Oil & Gas (Pipeline Compressors, Pumps)
Petrochemical & Refining
Heavy Industrial Manufacturing
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
