EPRO CON021+PR6426/000-010 Eddy Current Sensor System

Product Description

EPRO PR6426/000-010 Sensor Probe and CON021 Converter Module deliver precision non-contact eddy current measurement for critical rotating machinery, including turbines, compressors, pumps, and large industrial gearboxes. Designed for heavy-duty applications, the PR6426/000-010 provides extended measurement capabilities over earlier PR6423 and PR6424 series, supporting predictive maintenance and API 670-compliant machine protection.

Sensor Probe: PR6426/000-010

• Type: Eddy current displacement and vibration sensor (PR6426 series, 10 mm tip)

• Measurement Capabilities: Radial shaft vibration, axial displacement, eccentricity, rotational speed

• Target Material: Conductive ferromagnetic steel (standard: 42CrMo4 / AISI 4140)

• Linear Measurement Range: 2 mm (80 mils)

• Initial Air Gap: 1.0 mm (39 mils)

• Scale Factor (ISF): 8 V/mm ±5% (0–45 °C)

• Linearity (DSL): ±0.025 mm (±1 mil) within 0–45 °C

• Minimum Shaft Diameter: 35 mm, optimized for larger rotors

• Operating Temperature: –40 °C to +150 °C (sensor body)

• Protection Class: IP66 (IEC 60529)

Converter Module: CON021

• Function: Signal conditioning for PR6426 probes, providing stable and linear output

• Frequency Range: 0–20,000 Hz (–3 dB)

• Rise Time: <15 μs

• Supply Voltage: –23 V to –32 V DC

• Output Voltage: –4 V to –20 V (configurable)

• Operating Temperature: –30 °C to +100 °C

• Protection Class: IP20

• Housing Material: LMgSi alloy

Applications

• Power Generation: Steam and gas turbine shaft vibration monitoring

• Petrochemical Industry: Compressor and pump axial displacement measurement

• Industrial Machinery: Gearbox vibration detection and fan rotor eccentricity monitoring

• Heavy Rotating Equipment: Ideal for larger shaft diameters where PR6426 outperforms PR6423/PR6424

FAQ

Q: Can the PR6426 sensor measure both vibration and axial displacement simultaneously?
A: Yes, the PR6426/000-010 supports radial vibration, axial displacement, eccentricity, and rotational speed detection concurrently.

Q: Is the sensor compatible with non-ferromagnetic shafts?
A: No, the PR6426 series is optimized for ferromagnetic steel targets (42CrMo4 / AISI 4140). For non-ferromagnetic materials, a different probe series is required.

Q: What is the maximum shaft diameter for optimal performance?
A: The sensor is designed for shafts with a minimum diameter of 35 mm and performs best with large industrial rotors.