Overview
The Emerson EPRO CON021/914-100 + PR6423/010-010-CN, also cataloged as the PR6423/010-010-CN Eddy Current Sensor System, operates as a dedicated hardware component for non-contact shaft displacement and vibration measurement within EPRO machinery monitoring systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CON021/914-100 + PR6423/010-010-CN |
| Brand | Emerson EPRO |
| Product Type | Eddy Current Sensor System |
| Origin | Germany |
| Operating Temp | PR6423/010-010-CN: -35 deg C to +150 deg C; CON021/914-100: -30 deg C to +100 deg C |
| Probe Diameter | 8 mm |
| Measurement Principle | Eddy current distance measurement between probe tip and conductive target |
| Sensitivity | 4 V/mm (101.6 mV/mil) |
| Linearity | <= +/-1.5% |
| Nominal Air Gap | Approx. 1.0 mm to 2.0 mm |
| Signal Converter Supply | -23 VDC to -32 VDC |
| Output Signal | Proportional DC measurement output and buffered AC vibration output |
DCS Process Measurement Integration
The Emerson EPRO CON021/914-100 converter processes the excitation signal generated for the PR6423/010-010-CN eddy current probe and converts the probe response into proportional electrical measurement outputs. The signal chain is designed for connection with machinery protection systems, PLC analog channels, and DCS monitoring inputs.
The measurement loop converts the physical distance variation between the probe tip and the conductive shaft surface into electrical displacement information. The system configuration supports monitoring channels for radial vibration, shaft position, and displacement measurement applications.
For Emerson EPRO monitoring architectures, signal conditioning requirements include stable analog transmission, channel-to-channel isolation considerations, and compatibility with industrial DCS instrumentation loops. The converter output can be integrated into control systems where vibration and displacement signals require continuous acquisition.
Frequently Asked Questions
Q: What is the measurement principle of the PR6423/010-010-CN probe?
A: The PR6423/010-010-CN uses eddy current measurement technology to detect distance changes between the probe tip and a conductive target surface without mechanical contact.
Q: What role does the CON021/914-100 converter provide in the sensor chain?
A: The CON021/914-100 supplies probe excitation and converts the eddy current signal into proportional electrical outputs for monitoring system inputs.
Q: What installation conditions affect sensor measurement accuracy?
A: Probe alignment, mounting stability, target surface condition, cable routing, electrical shielding, and correct probe gap adjustment affect measurement performance.
Field Installation Guidelines
Install the PR6423/010-010-CN probe with a rigid mechanical mounting arrangement and maintain alignment between the probe tip and the monitored conductive target. Verify that the sensing surface remains within the specified operating gap range during commissioning.
Route probe cables separately from high-current motor cables, switching power lines, and sources of electromagnetic interference. Connect cable shielding according to site grounding procedures to reduce unwanted electrical noise and ground loop effects.
Mount the CON021/914-100 converter inside an appropriate control cabinet or instrumentation enclosure. Before system operation, verify signal polarity, converter output response, and connection integrity between the sensor chain and the machinery monitoring input channel.














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