EPRO CON021/916-200+PR6426/000-130 Eddy Current Shaft Monitoring System

Overview

The EPRO CON021/916-200 signal converter paired with the PR6426/000-130 eddy current probe forms a complete non-contact shaft monitoring solution. Engineered for high-precision measurement in turbomachinery, this system captures displacement, position, eccentricity, and vibration in steam, gas, and hydro turbines, compressors, pumps, and industrial fans. The combination ensures accurate dynamic response, long-term stability, and seamless integration with rack-based monitoring systems.

System Components

EPRO CON021/916-200 Signal Converter

• Function: Converts signals from eddy current probes for shaft position, eccentricity, displacement, and key monitoring

• Supported Probes: PR6422, PR6423, PR6424, PR6425, PR6426, PR6453

• Frequency Response: 0–20 kHz (-3 dB)

• Rise Time: < 15 μs

• Output Signals: Standardized analog outputs configurable per application

• Supply Voltage: -23V to -32V (Output -4V to -20V); -21V to -32V (Output -2V to -18V)

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

• Shock & Vibration: 5 g @ 60 Hz at 25°C

• Protection Class: IP20

• Mounting: Rack-based (MMS 6000 / IMR 6000), hot-swappable

EPRO PR6426/000-130 Eddy Current Probe

• Sensor Type: Eddy current displacement/vibration probe

• Sensor Head Diameter: 32 mm

• Sensitivity: 2 V/mm (~50.8 mV/mil)

• Linear Measuring Range: ±4.0 mm (0.157”)

• Nominal Air Gap: ~5.5 mm (0.22”)

• Accuracy: ≤ ±1.5% long-term drift

• Operating Temperature: -35°C to +180°C (short excursions up to +200°C)

• Cable Rating: Up to +200°C

• Connector: LEMO

• Weight: 0.8 kg

Key Features

• Complete monitoring chain: Probe + converter ensures reliable signal acquisition and processing

• High-precision dynamic measurement with rise time under 15 μs

• Non-contact design reduces mechanical wear and improves reliability

• Industrial-grade durability suitable for high-temperature, pressure, and vibration environments

• Seamless integration with MMS 6000 and IMR 6000 racks; supports hot-swappable operation

• Broad sensor compatibility across EPRO eddy current probes

Applications

• Shaft displacement and vibration monitoring in turbines, compressors, pumps, and industrial fans

• Condition monitoring for predictive maintenance

• Integration with plant monitoring systems (MMS 6000 / IMR 6000)

FAQ

Q: Can the CON021/916-200 work with other EPRO probes?
A: Yes, it is compatible with PR6422, PR6423, PR6424, PR6425, PR6426, and PR6453 probes.

Q: What is the maximum operating temperature for the PR6426/000-130 probe?
A: Continuous operation is up to +180°C, with short-term excursions up to +200°C.

Q: Is installation compatible with hot-swap operations?
A: Yes, the CON021/916-200 supports hot-swappable installation in MMS 6000 and IMR 6000 racks.