Epro PR6423/010-120-CN Eddy Current Probe

Product Description

The PR6423/010-120-CN is a precision eddy current sensing element developed for continuous monitoring of rotating shafts in industrial machinery. It detects micro-scale changes in the gap between the probe tip and conductive target surfaces, enabling accurate assessment of vibration behavior and mechanical alignment.

This probe is intended for integration into a complete measurement chain consisting of an ECF extension cable and a compatible Emerson CON-series signal conditioner.

System Integration Concept

In operation, the PR6423/010-120-CN functions as the primary sensing head in a three-part measurement architecture:

• Eddy current probe (this unit)

• Extension cable for signal transmission

• CON-series driver module for signal conditioning and linearization

This configuration ensures stable signal quality under high vibration, thermal variation, and electromagnetic interference conditions.

Technical Specifications

Mechanical & Physical Design

• Probe type: Eddy current displacement sensing probe

• Sensing tip diameter: 8 mm

• Housing material: stainless steel for corrosion resistance

• Installation: threaded or clamp mounting options depending on holder system

Measurement Characteristics

• Linear measurement range: approximately ±1.0 mm to ±2.0 mm (system dependent)

• Resolution: sub-micron level (<1 µm typical with matched driver)

• Frequency response: up to 10 kHz for dynamic vibration capture

• Linearity deviation: ≤ ±1% full scale (with calibrated system)

Electrical Interface

• Excitation signal: supplied via external CON-series driver

• Output format: analog displacement signal (processed through conditioner)

• Cable configuration: “120” designation indicates factory-defined cable assembly variant

Environmental Capabilities

• Operating temperature range: –35 °C to +180 °C

• Storage limits: up to +200 °C short-term exposure

• Protection level: IP65 or higher depending on installation sealing

• EMI resistance: designed for high-noise industrial electrical environments

• Suitable media resistance: oil mist, dust, and moisture exposure

Application Scope

• Steam and gas turbine shaft monitoring

• Industrial compressor vibration tracking

• High-speed motor and generator systems

• Pump alignment and condition assessment

• Gearbox wear and vibration diagnostics

• Petrochemical rotating equipment protection systems

Engineering Notes

The PR6423/010-120-CN is not a standalone transducer. Accurate operation depends on correct pairing with Emerson CON-series electronics and proper calibration matching. System performance is defined by the complete probe–cable–driver chain rather than the probe alone.

Frequently Asked Questions

Q1: Can this probe be used without a signal conditioner?
No. It requires a CON-series driver module to generate excitation and convert the signal into usable output.

Q2: What does the CN suffix indicate?
It generally refers to a China-market configuration with defined calibration and connector/cable arrangement.

Q3: Is the probe suitable for high-temperature turbines?
Yes. It is rated for continuous operation up to approximately 180 °C, depending on installation conditions.

Q4: Is it interchangeable with other PR6423 variants?
It is physically compatible within the PR6423 series, but electrical calibration must match the specific driver configuration.