EPRO PR6424/011-040+CON021

Product Overview

PR6424/011-040 + CON021 is a complete high-performance eddy current non-contact measurement system in Emerson's EPRO product line, specifically designed for the protection and condition monitoring of mission-critical mechanical equipment. This integrated system is designed to precisely measure the dynamic displacement and position of rotating shafts in harsh industrial environments.

PR6424/011-040 is an eddy current sensor (probe) with a diameter of 16 millimeters. The order code "011-040" indicates that this configuration uses M18x1.5 thread, does not have armored cable, has a housing length of 50mm, a total cable length of 10 meters, and is equipped with LEMO connectors.

CON021 is a matching signal converter (proximity sensor). The Signal Converter is responsible for powering the sensor, generating a high-frequency magnetic field, and converting the sensor's original signal into a stable, high-fidelity DC voltage, which is linearly proportional to the distance between the probe tip and the target axis.

Together, they form a powerful system for continuously monitoring parameters such as radial shaft vibration, axial thrust position and eccentricity of large turbomechanics (such as turbines, compressors and pumps), thereby achieving early detection of faults and preventing catastrophic failures.

Product Parameters

PR6424/011-040 Sensor Specifications

Sensitivity                           4 V/mm (±101.6 mV/mil)

Linearity Error                     ≤ ±1.5% (with CON021, Standard Range)

Sensor Diameter                 16 mm

Thread                               M18x1.5

Case Length (B)                  50 mm

Wrench Flat                        SW 27 mm

Measuring Range                 4.0 mm (Standard Range with CON021)

Nominal Air Gap (Center)      ~2.7 mm (0.11")

Long Term Drift                    < 0.3%

Material                               Ferromagnetic Steel (e.g., 42 Cr Mo 4)

Minimum Shaft Diameter       ≥ 80 mm

Max Surface Speed               2,500 m/s

Operating Temperature         -35°C to 150°C (-31°F to 302°F)

Temperature Error               < 4% per 100°K (API 670 Compliant)

Pressure Resistance             10,000 hPa (145 psi)

Cable Length                       10 meters

Cable Type                          PTFE, Unarmored (2.8 mm diameter)

Cable End                           LEMO Connector (Male)

CON021 Converter Specifications

Supply Voltage                           -23 V to -32 V DC (for -4 to -20V output)

                                                -21 V to -32 V DC (for -2 to -18V output)

Frequency Response (-3dB)         0 to 20,000 Hz

Output Signal Range                   -4 V to -20 V DC (or -2 V to -18 V), linearly corresponding to the sensor's measuring range.

Operating Temperature               -30°C to 100°C (-22°F to 212°F)

Protection Class                         IP20

Housing Material                        LMgSi 0.5 (Aluminum Alloy)

Connections                              Input: Self-locking Lemo Socket for sensor

                                               Output/Power: Screw Terminal (max 1.5mm² wire)

Mounting                                  4x M5x20 screws (included)