Product Core Brief
- Model: PR6426/000-010+CON021
- Brand: EMERSON (EPRO)
- Series: EPRO Machinery Protection & TSI System
- Core Function: Measures relative shaft vibration, displacement, and position for critical rotating machinery.
- Product Type: Eddy Current Sensor + Signal Conditioner Assembly
- Key Specs: ±4.0 mm Static Range | 2 V/mm Sensitivity | LEMO Connector | IP20 Protection
- Condition: New Original (New Surplus)
EMERSON PR6426/000-010+CON021
Product Introduction
EMERSON /000-010+ is a complete eddy current measurement system comprising a high-precision proximity probe (/000-010) and its dedicated signal conditioner (). This assembly is a cornerstone of Turbine Supervisory Instrumentation (TSI) systems, providing continuous monitoring of rotating equipment.
The sensor detects changes in the air gap between the probe and a conductive target (typically a steel shaft), while the conditioner processes this raw signal into standardized outputs. It is specifically engineered for measuring radial and axial shaft displacement, eccentricity, and vibration in steam turbines, gas turbines, compressors, and pumps. The system is designed for harsh industrial environments, offering excellent temperature stability and long-term reliability.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Assembly Type | Eddy Current Sensor + Signal Conditioner |
| Sensor Model | /000-010 |
| Conditioner Model | |
| Static Measurement Range | ±4.0 mm |
| Sensitivity | 2 V/mm |
| Nominal Air Gap | 5.5 mm (Center of Range) |
| Target Material | Conductive Steel (Cylindrical Shaft) |
| Max Surface Velocity | 2500 m/s |
| Operating Temp (Sensor) | -35 °C to +180 °C |
| Operating Temp (Conditioner) | -20 °C to +70 °C |
| Protection Rating () | IP20 |
| Sensor Connection | LEMO Plug |
| Compliance | API 670 |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage to the sensor tip, cable, or LEMO connector.
- Live Functional Test: The is powered on to verify basic operation. We monitor the output signal baseline for stability and check for internal noise.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity and shield integrity are strictly checked.
- Signal Calibration Test: Using a calibrated eddy current simulator, we verify the 2 V/mm sensitivity and linearity across the ±4.0 mm range to ensure accurate gap-to-voltage conversion.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.
EMERSON PR6426/000-010+CON021
Replacement Pitfall Guide
❗ Target Material Verification: The sensor is calibrated specifically for conductive steel targets. Using this assembly on non-standard target materials will result in severe scaling errors.
❗ Air Gap Setting: The nominal air gap for this sensor is 5.5 mm. During installation, you must set the gap to this value to ensure the sensor operates in the center of its linear range. Incorrect gapping will cause signal clipping or loss of measurement.
❗ Connector Type Mismatch: The /000-010 uses a LEMO plug to connect to the . Do not confuse this with the CON031 variant, which uses screw terminals for bare-wire sensors.
❗ Explosion Hazard: The signal conditioner has an IP20 rating and is not certified for use in explosive atmospheres. Never install this unit in hazardous areas without an approved safety barrier.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to the sensitive electronics in the .
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- /000-010+ → PR6423/010-010+ : Companion — Different Range/Sensitivity for Radial Vibration
- /000-010+ → CON031 : Needs Adaptation — LEMO Interface vs. Screw Terminal Interface
- /000-010+ → MMS 3000 Transmitter : Companion — Direct Integration via LEMO
- Signal Linearity: ≤ ±1.5% F.S.
- Long-Term Drift: Max 0.3%
Need matching extension cables or verifying your target shaft material and diameter? I can confirm the exact installation gap settings and calibration requirements for your turbine application.
