Product Description

Overview

The Emerson EPRO PR6423/003-030-CN combines a high-precision eddy-current proximity probe with the dependable CON021 signal converter for advanced turbomachinery protection. The system delivers accurate measurements of shaft displacement, vibration, eccentricity, and position, helping operators identify developing mechanical problems early. Moreover, its robust mechanical design ensures stable performance across turbines, compressors, pumps, and other high-speed rotating machines.

The probe captures micro-scale shaft movement, while the CON021 module conditions the signal for integration with DCS or PLC platforms. In addition, the assembly integrates easily into modern condition monitoring systems, allowing maintenance teams to maintain high equipment availability.

Technical Specifications

PR6423/003-030 Eddy-Current Probe

Model Number: PR6423/003-030
Type: Eddy-current proximity sensor
Tip Diameter: 8 mm
Measurement Range: 2 mm (typical)
Linear Range: 0.25–2.25 mm
Sensitivity: ~7.87 mV/µm
Cable Length: 3 m
Operating Temperature: –35 °C to +180 °C
Pressure Resistance: Up to 200 bar
Applications: Shaft vibration, axial displacement, eccentricity
Dimensions: 2.2 cm × 12.4 cm × 12.6 cm
Weight: 0.5kg
Country of Origin: Germany

CON021 Signal Converter

Model Number: CON021
Type: Signal conditioning and interface module
Compatible Sensors: PR6423 Series
Input: Eddy-current probe signal
Outputs: 4–20 mA, buffered output, OK/fault relay
Power Supply: 24 V DC
Isolation: Galvanic isolation between input and output
Diagnostics: Sensor OK/fault detection
Mounting: DIN-rail or panel mount
Operating Temperature: –20 °C to +70 °C
Applications: Machinery protection and vibration monitoring

FAQ

Q1: Is the PR6423/003-030-CN fully compatible with the CON021 module?
Yes, the PR6423 probe is designed for seamless operation with all CON021 models.

Q2: Can this system replace Bently Nevada proximity probes?
Yes, it works with many Bently Nevada monitoring racks, although calibration may be required.

Q3: Which control systems support the 4–20 mA output?
Most PLC and DCS systems, including ControlLogix and DeltaV, support these outputs.

Q4: Is the probe suitable for high-temperature environments?
Yes, the probe performs reliably up to +180 °C.

Q5: Does the CON021 provide fault indication?
Yes, it includes sensor-OK and fault-relay outputs for enhanced system protection.