Epro CON021+PR6424/013-030 Eddy Current Proximitor System

Product Overview

The Emerson EPRO CON021 paired with PR6424/013-030 is an integrated vibration and displacement measurement solution designed for continuous monitoring of rotating machinery. The system combines a 16 mm eddy current proximity probe with a dedicated signal conditioning unit, providing stable and calibrated output for protection and diagnostic applications.

The PR6424 probe detects shaft movement without physical contact, while the CON021 converts the raw probe signal into a standardized analog output suitable for monitoring systems. Factory pairing ensures consistent calibration and reduces installation uncertainty in critical machinery environments.

PR6424/013-030 Probe Technical Data

Model: PR6424/013-030
Probe Diameter: 16 mm
Measurement Principle: Eddy current non-contact sensing
Static Measurement Range: ±2.0 mm
Dynamic Vibration Range: 0–1000 µm
Sensitivity: 4 V/mm (approx. 101.6 mV/mil) ±1.5%
Frequency Response: DC to 10 kHz
Thread Size: M18 × 1.5
Housing Material: Stainless steel
Operating Temperature: -35 °C to +180 °C

The probe is optimized for stable linear response in high-speed shaft environments, maintaining accuracy under thermal expansion and mechanical vibration conditions.

CON021 Signal Converter Technical Data

Function: Eddy current signal conditioning and conversion
Frequency Bandwidth: 0–20 kHz (–3 dB)
Response Time: <15 µs
Supply Voltage: -23 V to -32 V DC
Output Signal: -4 V to -20 V DC (system dependent scaling)
Operating Temperature: -30 °C to +100 °C
Protection Level: IP20
Connector Type: LEMO sensor interface with screw terminal output
Mounting: Panel mount (M5 fixation points)
Certifications: ATEX, IECEx, CSA, CE, RoHS

The CON021 module ensures fast dynamic response and accurate signal linearization for real-time machinery protection systems.

System Performance Characteristics

This matched system is engineered for high-frequency vibration detection and long-term stability in demanding turbine and compressor applications.

Key performance attributes include:
Stable amplitude response across full operating range
High-frequency resolution for early fault detection
Low signal drift under thermal cycling
Fast transient response for protection logic systems
Factory calibration alignment between probe and converter

Typical Applications

Steam and gas turbine shaft monitoring
Industrial compressor vibration diagnostics
Large pump axial and radial displacement measurement
Generator rotor position monitoring
High-speed rotating machinery condition analysis

FAQ

Q1: Is this system pre-calibrated?
Yes. The CON021 and PR6424 probe are factory matched to ensure consistent sensitivity and linear output.

Q2: Can it detect early bearing faults?
Yes. The 20 kHz bandwidth allows detection of high-frequency vibration components associated with early-stage defects.

Q3: Is the system suitable for harsh environments?
Yes. The probe is rated up to +180 °C and the converter is designed for industrial control cabinet environments.