Epro CON021+PR6424/007-110-CN Eddy Current Proximity System

System Overview

The Emerson EPRO CON021 paired with PR6424/007-110-CN is a matched eddy current measurement assembly designed for continuous shaft vibration and position tracking in rotating machinery. It is commonly deployed in turbines, compressors, pumps, and other critical rotating systems where stable and accurate displacement data is required for protection and diagnostics.

The PR6424 probe captures real-time movement of conductive targets without physical contact, while the CON021 module processes and converts the signal into a standardized analog output for monitoring and control systems. This configuration is widely selected for harsh industrial environments due to its mechanical robustness and stable signal behavior.

PR6424/007-110-CN Probe Technical Data

Model: PR6424/007-110-CN
Probe Diameter: 16 mm
Measurement Principle: Eddy current non-contact displacement sensing
Measurement Range: approx. 0–5 mm (system calibration dependent)
Linearity: ±0.5% of full scale (typical)
Frequency Response: up to 10 kHz
Output Type: Analog proportional displacement signal
Operating Temperature: -40 °C to +125 °C
Protection Rating: IP67
Housing Material: Stainless steel

The probe is designed for stable operation in high-vibration environments and maintains consistent sensitivity when properly installed with matched electronics.

CON021 Signal Converter Technical Data

Function: Eddy current signal conditioning and conversion
Bandwidth: 0–20 kHz (-3 dB)
Response Time: <15 µs
Supply Voltage Options:

• -23 V to -32 V DC (output -4 V to -20 V DC)

• -21 V to -32 V DC (output -2 V to -18 V DC)
  Operating Temperature: -30 °C to +100 °C
  Protection Class: IP20
  Housing Material: LMgSi alloy
  Weight: approx. 120 g
  Mounting: Panel installation using 4 × M5 screws
  Sensor Interface: LEMO self-locking connector
  Certifications: CE, ATEX, IECEx, CSA (depending on configuration)

The CON021 ensures fast signal response and stable analog conversion for protection systems and condition monitoring platforms.

System Performance Characteristics

This system is engineered for continuous monitoring of rotating assets where signal stability and fast dynamic response are required.

Key engineering characteristics include:
Stable linear output across full measurement range
Fast transient response suitable for protection logic
High immunity to oil mist, vibration, and electromagnetic interference
Consistent calibration behavior when used as a matched system
Reliable operation in high-temperature industrial environments

Typical Applications

Steam, gas, and hydro turbine monitoring
Industrial compressor shaft vibration measurement
Pump rotor displacement tracking
Gearbox alignment and eccentricity detection
Machine protection and predictive maintenance systems

FAQ

Q1: Is this system suitable for harsh industrial environments?
Yes. The probe is IP67 rated and designed for high vibration, oil exposure, and temperature variations.

Q2: Does it require external calibration?
Basic system calibration is required during installation, but probe and converter are factory compatible.

Q3: Can it be integrated with PLC systems?
Yes. The CON021 outputs standard analog signals compatible with PLCs and monitoring systems.