Overview of CON021
The EPRO CON021 is a precision signal converter developed by Emerson (formerly EPRO) for use with the PR642x series non-contact eddy current sensors. It converts the raw analog signals from the probes into standardized output signals (such as 4–20 mA or 0–10 V DC), allowing for seamless integration with control systems, protection relays, and condition monitoring platforms.
This converter is deployed across various critical applications such as steam and gas turbines, hydroelectric generators, and industrial compressors, where accurate shaft displacement and vibration measurements are essential for predictive maintenance and machine protection. Its high-frequency range and fast response time make it ideal for dynamic fault detection and high-speed applications.
The CON021 is built with a rugged design, wide operating temperature range, and an IP65-rated enclosure, ensuring reliable performance in harsh industrial environments. Furthermore, it is compatible with a wide range of sensor models, including PR6422, PR6423, PR6424, PR6425, PR6426, and PR6453, making it highly flexible and suitable for various asset types.
Overview
The EPRO PR6423/000-120 is an eddy current displacement sensor from Emerson’s AMS machinery protection family, engineered for precise non-contact measurement of shaft vibration, axial displacement, and shaft position in critical turbomachinery. With its 8 mm probe diameter, it provides high sensitivity and accurate measurements required for turbines, compressors, pumps, and high-speed rotating equipment.
Moreover, the sensor is built for harsh industrial conditions. Its rugged design, integrated cable, and IP66 protection rating ensure stable performance in environments involving high temperatures, strong vibration, moisture, and electromagnetic interference. In addition, the PR6423/000-120 works seamlessly with the CON021 converter and AMS monitoring systems, delivering reliable data essential for predictive maintenance and asset protection.
Technical Data
| Parameter | Specification |
|---|---|
| Model Number | PR6423/000-120 |
| Sensor Type | Eddy Current Displacement Sensor |
| Operating Temperature | –35 °C to +180 °C |
Application (Google Sheets Format)
| Application Area | Description |
|---|---|
| Shaft Vibration Monitoring | Tracks radial shaft movement to detect imbalance, rubs, rotor instability |
| Axial Displacement | Protects thrust bearings by monitoring axial shaft movement |
| Position/Eccentricity | Measures shaft centerline shift and orbit stability |
| High-Speed Rotating Equipment | Suitable for compressors, turbines, and driven machinery |
| AMS System Integration | Inputs displacement data into CON021 and AMS systems for protection logic |
FAQ
Q1: What is the primary function of the PR6423/000-120 sensor?
It measures shaft vibration, axial displacement, and shaft position using a non-contact eddy current principle.
Q2: Can the sensor operate in harsh environments?
Yes. It is IP66 rated and designed to operate reliably up to +180 °C.
Q3: What target materials are supported?
It is optimized for ferromagnetic steel such as 42CrMo4 (AISI 4140).
Q4: Is the sensor compatible with monitoring systems?
Yes, it integrates with Emerson AMS systems and the CON021 converter.
Q5: Which industries typically use this sensor?
Common in power generation, oil & gas, petrochemical, and heavy industrial equipment monitoring.
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