Introduction
The EPRO 330102-00-27-10-02-05 is a specific configuration of a 5 mm Eddy Current Proximity Probe from the EPRO (Baker Hughes) machinery condition monitoring system. This sensor is designed for non-contact measurement of relative vibration and positional changes of rotating shafts, particularly in applications with space constraints.
Operating on the eddy current principle, the probe generates an electromagnetic field at its tip. When this field interacts with a conductive target (such as a machine shaft), eddy currents are induced. The sensor measures the change in the field's strength to precisely determine the distance to the target, allowing it to monitor both dynamic motion (vibration) and static position. This specific variant features a 5 mm diameter, 8-meter integrated cable, and a 2 mm linear range, making it suitable for space-constrained applications requiring longer cable reach.
Parameters / Specifications
The key technical specifications for the EPRO 330102-00-27-10-02-05 are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 330102-00-27-10-02-05 |
| Product Line / Type | EPRO (Baker Hughes) 5 mm Eddy Current Proximity Probe |
| Probe Diameter | 5 mm |
| Thread Size | M8 x 1.0 |
| Sensitivity | -8.0 V/mm (± 5%) |
| Linear Range | 2.0 mm (This is a key interpretation of the -02 suffix, e.g., 1.0 mm to 3.0 mm) |
| Operating Temperature | -35°C to +150°C (-31°F to +302°F) for probe; -35°C to +120°C for cable |
| Power Supply | Provided by the connected proximitor (e.g., -24 V DC from PR 6426) |
| Output Signal | A modulated RF signal requiring a dedicated proximitor for demodulation |
| Cable Length | 8.0 meters (This is a key interpretation of the -27 suffix in the part number) |
| Connector | Integrated, unconnectorized cable (This is a key interpretation of the -00 suffix) |
| Mounting Thread | M8x1 (This is a key interpretation of the -05 suffix) |
| Dimensions (Probe) | Body Diameter: 5 mm; Thread: M8 x 1.0; Length is application-specific |
| Weight (Probe only) | Approx. 0.09 lbs (0.04 kg) |
Note: This sensor must be used with a compatible proximitor (e.g., EPRO PR 6426) to form a complete and functional measuring chain. The -10 suffix typically specifies a standard temperature rating.
Application Scenarios
This 5 mm eddy current probe is specifically designed for applications where space is limited but precise vibration and position monitoring is still required, with the added need for extended cable length.
Typical Application Scenarios:
Small Bore Machinery with Remote Mounting:
Used on smaller turbines, compressors, and high-speed spindles where space constraints prevent the use of standard 8 mm probes, and the monitoring equipment is located farther away.
Tight Clearance Bearing Housings:
Installed in bearing housings with limited radial space, providing vibration monitoring for smaller diameter shafts where longer cable runs are necessary.
Precision Machinery Applications:
Suitable for monitoring high-speed precision equipment where smaller probe size is necessary to avoid affecting machine dynamics, and the 8-meter cable provides installation flexibility.
Research and Development Testing:
Used in test stands and laboratory environments where space is limited, precise measurements are required, and sensors need to be connected to remotely located data acquisition systems.
Industries of Use:
Aerospace (Auxiliary power units, small gas turbines)
Precision Manufacturing
Research and Development
Specialized Industrial Machinery
The compact 5 mm diameter combined with the 8-meter cable makes this probe ideal for applications where standard 8 mm probes are too large and where installation flexibility is important, while still providing the accurate vibration and position measurements necessary for effective machinery protection.
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