Overview
Configured for continuous rotor vibration and displacement monitoring within industrial turbomachinery protection systems, the Epro PR6423/00C-031-CN CON041-CN (PR6423/00C-031-CN CON041-CN Eddy Current Sensor) provides direct physical signal acquisition.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PR6423/00C-031-CN CON041-CN |
| Brand | Epro |
| Origin | GERMANY |
| Weight | 0.45 kg |
| Dimensions | 28 x 24 x 4 cm |
| Operating Temp | -35 to 180 deg C (-31 to 356 deg F) |
| Power Consumption | Loop-powered via associated signal converter |
| Sensitivity/Linearity | 4 V/mm (101.6 mV/mil) less than or equal to plus or minus 1.5% |
| Long Term Drift | Less than 0.3% |
| Static Range | Plus or minus 2.0 mm (0.079 inches) |
| Dynamic Range | 0 to 1,000 um (0 to 0.039 inches) |
| Maximum Surface Speed | 2,500 m/s (98,425 ips) |
| Minimum Shaft Diameter | Greater than or equal to 80 mm |
Rotor Dynamics and Gap Voltage Validation
Operating as a high-precision proximity probe assembly, this hardware continuously measures relative shaft vibration and axial position by generating a high-frequency electromagnetic field at the probe tip. Specifically, the integral driver unit evaluates the impedance variations caused by the fluctuating air gap between the probe tip and the conductive target surface. Technicians must calibrate the static gap voltage to nominal operating targets (typically -10 VDC) during initial machinery alignment. Furthermore, maintaining proper signal scaling and rigorous cross-talk suppression ensures that high-speed transient phenomena, shaft eccentricity, and localized thermal growth are accurately isolated without electromagnetic interference.
Frequently Asked Questions
Q: What is the primary function of the associated CON041-CN converter module?
A: The converter processes the high-frequency radio frequency carrier signal generated by the probe tip and converts it into a proportional industrial voltage output of 4 V/mm for downstream monitoring racks.
Q: Can this sensor operate in high-temperature steam turbine environments?
A: Yes, the assembly is rated for continuous operation across an ambient operating temperature range of -35 to 180 deg C, making it suitable for heavy rotating machinery housings.
Field Installation Guidelines
Mount the probe securely into the designated machine casing penetration using appropriately threaded mechanical brackets, ensuring that the probe tip remains perpendicular to the observed shaft surface. Route the coaxial signal cable away from high-voltage power conduits and variable frequency drive cables to prevent induced electrical noise. Terminate the shield properly at the common system ground point to maintain signal integrity, and verify that the initial DC gap voltage falls within the manufacturer-specified linear operating window prior to turbine startup.
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