Epro CON021+PR6423/017-030-CN Eddy Current Proximity Sensor System

Product Description

The PR6423/017-030-CN + CON021 eddy-current sensing system from Emerson EPRO is engineered for precise, non-contact monitoring of shaft dynamics in high-speed rotating equipment. This combined probe and signal conditioner solution delivers accurate displacement and vibration measurements under demanding industrial conditions.

The PR6423/017-030-CN probe, paired with the CON021 driver, forms a calibrated system that converts mechanical movement into a stable voltage output. It is widely deployed in turbomachinery protection systems where reliability and measurement consistency are critical.

The probe variant “017-030-CN” denotes a factory-configured 17-meter integral cable and a regional compliance configuration tailored for specific installation standards.

Key Technical Specifications

PR6423/017-030-CN Probe

• Sensor type: Eddy-current proximity probe (non-contact)

• Tip diameter: 8 mm

• Measurement range: Typically ±2 mm (dependent on target material and calibration)

• Sensitivity: Approx. 7.87 mV/µm (system calibrated with CON021)

• Frequency response: 0 Hz to 10 kHz

• Operating temperature (probe): –35°C to +180°C

• Storage temperature: –40°C to +200°C

• Relative humidity: 5–95% RH, non-condensing

• Cable length: 17 meters (integral, armored option available)

• Construction materials: Stainless steel housing, PEEK probe tip, PTFE-insulated cable

• Protection rating: Typically IP66

CON021 Signal Conditioner

• Function: Probe excitation, signal demodulation, linearization, and output scaling

• Input compatibility: PR6423 series probes

• Output signal: Standard analog voltage (commonly 0–10 V or configurable)

• Frequency bandwidth: Matches probe performance up to 10 kHz

• Mounting: DIN rail or system rack integration

• Environmental rating: Industrial-grade design for continuous operation

Functional Characteristics

• True non-contact measurement eliminates mechanical wear

• Stable linear output across full operating range

• Resistant to oil contamination, vibration, and temperature extremes

• Designed for continuous monitoring in critical assets

• High immunity to electromagnetic interference

Typical Applications

• Steam and gas turbines

• Centrifugal and axial compressors

• Industrial pumps and motors

• Power generation equipment

• Shaft position and thrust monitoring systems

System Compatibility

The PR6423/017-030-CN + CON021 system integrates seamlessly with Emerson monitoring platforms and third-party control systems, including:

• MMS 6000 machinery protection system

• AMS 6500 condition monitoring system

• Distributed Control Systems such as Ovation

FAQ

Q: Is this probe interchangeable with other 8 mm proximity systems?
A: It is compatible within the PR6423 series, but calibration with the CON021 driver is required to ensure measurement accuracy. Cross-brand substitution is not recommended without validation.

Q: What target materials are supported?
A: Conductive metallic targets such as steel are standard. Calibration may vary depending on material properties.

Q: Can the output range be adjusted?
A: Yes, the CON021 preamplifier supports configurable output scaling depending on system requirements.