PR6426/010-010 EPRO Eddy Current Sensor Technical Datasheet
Manufacturer: Emerson
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Part Number: PR6426/010-010
Condition：New with Original Package
Product Type: Proximity Sensors
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Country of Origin: Germany
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
EPRO PR6426/010-010 Eddy Current Sensor with CON021 Converter
The EPRO PR6426/010-010, also cataloged as the PR6426 Eddy Current Proximity Sensor, operates as a dedicated hardware component for non-contact displacement and vibration monitoring within machine supervisory networks. The transducer generates a high-frequency electromagnetic field at its sensor tip to measure micro-displacement variations induced by a moving conductive target shaft. Operating in combination with the CON021 signal conditioning driver, the system translates relative structural micro-variations into linear electrical outputs, transmitting immediate shaft dynamics directly to external monitoring machinery.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PR6426/010-010 + CON021 |
| Brand | EPRO (Emerson Line) |
| Origin | Germany |
| Weight | 0.20 kg |
| Dimensions | M10 x 1 mounting thread with integrated 1 m cable length |
| Operating Temp | -35 to 180 deg C sensor tip threshold (Storage: -40 to 200 deg C) |
| Power Consumption | Driven by supply voltage via external controller monitor rails |
| Transducer Type | Non-contact eddy current displacement sensor |
| Signal Conditioning | CON021 external proximitor matching assembly |
| Linearity Variance | Plus or minus 1% of full scale calibrated span |
| Frequency Response | Up to 10 kHz signal tracking velocity |
| Physical Envelope | Stainless steel housing with sealed internal cable junctions |
| Pressure Resistance | Up to 10 bar static pressure exposure limits |
| Termination Interface | EPRO standard coaxial connector assembly |
| Certifications | CE, IEC 60068, ATEX, IECEx hazardous area rated |
Eddy-Current Probe Scaling and Rotor Dynamics
The calibration matrix of the PR6426/010-010 relies on precise eddy-current probe scaling to convert structural micro-gaps into clear voltage signals via the CON021 conditioning driver. To guarantee signal stability within highly dynamic systems, field technicians execute gap voltage validation, adjusting mechanical depth until achieving a specific baseline (such as standard -10 VDC targets) within the center of the sensor's linear measurement track. This precise mapping isolates fast-moving rotor dynamics, including synchronous shaft unbalance and oil whip frequencies. Cross-talk suppression logic is enforced by using distinct driver oscillation frequencies across close-proximity paths, blocking external high-frequency fields from corrupting the continuous measurement data.
Frequently Asked Questions
Q: Can the integrated 1 m coaxial cable be shortened or spliced to simplify field installation routing?
A: No. The physical length and electrical properties of the 1 m cable are factory-matched to the tuning parameters of the transducer's internal LC tank circuit. Modifying the cable length alters the core electrical parameters, destabilizing the pre-set eddy-current probe scaling coefficients and invalidating system measurement metrics.
Q: How does the sensor maintain measurement calibration if the target material changes from standard steel?
A: The linear voltage output depends directly on the electrical conductivity and magnetic permeability of the target surface. If the shaft target deviates from standard reference alloys, the CON021 conditioning unit must be recalibrated to account for the specific eddy-current probe scaling behavior of the new material.
Q: What structural issues manifest if the gap voltage validation falls outside the recommended limits?
A: Operating outside the calibrated midpoint compromises the sensor's linear measurement limits. Setting a gap too narrow can lead to severe saturation anomalies during heavy shaft displacement spikes, whereas an excessive gap can push the signal into nonlinear tracking zones.
Field Installation Guidelines
- Thread the M10 x 1 stainless steel sensor body into the machine housing, verifying alignment visually before tightening the mounting hardware to avoid cross-threading.
- Adjust the physical proximity gap relative to the target shaft until the external CON021 driver indicates that the standard target voltage has been achieved.
- Secure the 1 m integrated coaxial line along the internal structural frames with insulated routing clamps, maintaining a minimum bend radius of 30 mm to prevent shield degradation.
- Isolate all transducer signals inside grounded steel conduit systems, keeping the runs separated from parallel three-phase AC motor conductors by at least 300 mm.