Overview
The EPRO PR6423/014-030 + CON021 is an eddy current measurement system for non-contact monitoring of shaft vibration, radial displacement, and eccentricity. It combines an 8 mm proximity probe with a signal converter that processes probe signals and delivers a linear voltage output. Furthermore, its 2 mm measuring range makes it suitable for monitoring shaft movement in sleeve-bearing machinery.
PR6423/014-030 Sensor Features
The PR6423/014-030 uses eddy current technology to detect shaft movement without physical contact. It measures the relative position of a ferromagnetic target and converts changes in the target gap into an electrical signal.
For example, maintenance teams can use this measurement to monitor radial shaft vibration and eccentricity. The probe also supports installation on machinery with a minimum shaft diameter of 25 mm.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | PR6423/014-030 + CON021 |
| Brand | EPRO |
| Sensor Type | Eddy Current Proximity Sensor |
| Probe Tip Diameter | 8 mm |
| Measurement Range | 2 mm (0-0.08 in) |
| Initial Air Gap | 3.0 mm (0.118 in) |
| Sensitivity (ISF) | 8 V/mm +/-5% (0-45 deg C) |
| Linearity | +/-0.025 mm (+/-1 mil) |
| Minimum Shaft Diameter | 25 mm (0.98 in) |
| Target Material | Ferromagnetic steel (42CrMo4 / AISI 4140 standard) |
| Probe Operating Temperature | -40 to +150 deg C |
| Ingress Protection | IP66 |
| Converter Model | CON021 |
| Converter Function | Signal conditioning and linear output conversion |
| Frequency Response | 0-20 kHz (-3 dB) |
| Rise Time | Less than 15 us |
| Supply Voltage | -23 to -32 VDC |
| Output Voltage | -4 to -20 V, configurable |
| Converter Operating Temperature | -30 to +100 deg C |
CON021 Signal Converter
The CON021 processes the electrical signal from the PR6423/014-030 probe and converts it into a voltage output proportional to target displacement. This conversion allows monitoring equipment to receive a signal that represents changes in shaft position.
Furthermore, the converter has a frequency response of 0-20 kHz (-3 dB) and a rise time below 15 us. These values describe how the converter responds to changing input signals. Therefore, they are important when selecting the system for dynamic shaft vibration measurements.
Measurement and Installation Considerations
The probe uses eddy current interaction with a conductive ferromagnetic target to measure displacement. Therefore, the target material and initial air gap are important selection and installation conditions.
In addition, the specified sensitivity of 8 V/mm +/-5% applies within the temperature range of 0-45 deg C. Meanwhile, the probe and converter have separate operating temperature limits, so users should check the conditions at each installation point.
The 25 mm minimum shaft diameter also matters when selecting the probe for sleeve-bearing machinery. Furthermore, the IP66 protection rating applies to the probe specification and should not automatically be assigned to the CON021 converter.
Frequently Asked Questions
Q: What does the EPRO PR6423/014-030 measure?
A: It measures shaft vibration, radial displacement, and eccentricity without physical contact. The probe detects changes in the distance between its sensing tip and a suitable ferromagnetic target.
Q: What is the function of the CON021 converter?
A: The CON021 conditions the probe signal and converts it into a linear voltage output. It provides a frequency response of 0-20 kHz (-3 dB) and a rise time below 15 us.
Q: What should users check before selecting this sensor system?
A: Check the shaft diameter, target material, initial air gap, and operating temperature. In addition, confirm that the converter supply voltage and output requirements match the connected monitoring equipment.
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