Overview
Configured for non-contact shaft displacement monitoring in EPRO machinery protection systems, the Emerson EPRO CON021 + PR6423/003-130 (CON021 + PR6423/003-130 eddy current measurement system) provides direct physical signal conversion for radial vibration, axial displacement, position, and eccentricity measurement.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CON021 + PR6423/003-130 |
| Brand | Emerson EPRO |
| Product Type | Eddy Current Proximity Measurement System |
| Origin | Germany |
| Operating Temp | PR6423/003-130 Probe: -35 deg C to +180 deg C; short-term up to +200 deg C; CON021 Converter: -30 deg C to +100 deg C |
| Measurement Principle | Non-contact eddy current displacement measurement |
| Probe Type | 8 mm Eddy Current Proximity Probe |
| Probe Tip Diameter | 8 mm |
| Probe Thread Size | M10 x 1 |
| Linear Measurement Range | 2.0 mm (80 mils) |
| Initial Air Gap | 0.5 mm (20 mils) |
| Minimum Shaft Diameter | 25 mm (0.98 in) |
| Probe Housing Material | Stainless Steel with isolation structure |
| Converter Frequency Range | 0 to 20,000 Hz (-3 dB) |
| Converter Signal Rise Time | < 15 us |
| Converter Supply Voltage | -23 VDC to -32 VDC |
| Standard Output Range | -4 VDC to -20 VDC |
| Converter Protection Class | IP20 |
EPRO Eddy Current Measurement and Machinery Monitoring
The Emerson EPRO CON021 and PR6423/003-130 combination uses eddy current sensing technology to detect shaft movement through electromagnetic field variation. The PR6423/003-130 probe converts mechanical displacement between the probe tip and conductive shaft surface into an electrical signal. The CON021 converter processes the high-frequency sensor signal and provides conditioned output for machinery monitoring systems.
For EPRO machinery protection applications, probe scaling and gap voltage validation are used to verify measurement accuracy. The initial air gap setting directly affects the operating measurement range, while stable signal conversion supports rotor dynamic analysis including shaft vibration and displacement monitoring.
Frequently Asked Questions
Q: What measurement principle is used by the PR6423/003-130 probe?
A: The PR6423/003-130 uses eddy current technology to measure the distance between the probe tip and a conductive rotating shaft without mechanical contact.
Q: What is the function of the CON021 module in this system?
A: The CON021 operates as a signal converter that processes the probe high-frequency output and converts it into an electrical measurement signal for monitoring equipment.
Q: What installation factor affects eddy current measurement accuracy?
A: The probe mounting gap, shaft surface condition, cable routing, and electrical shielding configuration affect the quality of the measured displacement signal.
Field Installation Guidelines
Install the PR6423/003-130 probe with the sensing tip aligned toward the target shaft surface according to the mechanical mounting arrangement. Verify the probe gap before commissioning and confirm that the measured output corresponds with the expected shaft position range.
Use shielded signal wiring between the probe and CON021 converter. Keep sensor cables separated from high-current power conductors and sources of electromagnetic interference. Connect cable shielding according to the machinery protection system grounding practice.
Mount the CON021 converter in a suitable enclosure or rack environment with appropriate protection from contamination and mechanical impact. Check power polarity, signal wiring, and grounding connections before system startup.
Reviews
There are no reviews yet.