Emerson PR6423/000-131-CN CON031 Sensor Sensor Assembly
Manufacturer: Emerson
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Part Number: CON031+PR6423/000-131
Condition：New with Original Package
Product Type: Proximity Sensors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Emerson PR6423/000-131-CN CON031 Eddy Current Sensor System
The Emerson PR6423/000-131-CN CON031, also cataloged as the PR6423/000-131 Eddy Current Sensor System, operates as a dedicated hardware component for non-contact shaft displacement measurement within critical rotating machinery networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PR6423/000-131-CN CON031 |
| Brand | Emerson |
| Origin | USA |
| Weight | 0.22 kg |
| Dimensions | 4 cm x 16 cm x 16 cm |
| Operating Temp | -35 to +180 deg C (Sensor), -30 to +100 deg C (Converter) |
| Power Consumption | 0.80 W (Nominal system consumption at -24 VDC) |
| Sensor Head Diameter | 8 mm |
| Measuring Range | 0-2 mm (Extendable to ~3 mm via converter configuration) |
| Sensitivity | 8 V/mm (approx 203.2 mV/mil) |
| Frequency Response | 0-10 kHz (-3 dB for sensor), 0-20000 Hz (-3 dB for converter) |
| Nominal Air Gap | ~1.0 mm |
| Static Accuracy | Less than or equal to ±1.5% |
| Target Material | Ferromagnetic steel (42CrMo4 / AISI 4140 standard) |
| Max Shaft Surface Speed | 2500 m/s (approx 98425 ips) |
| Minimum Shaft Diameter | Higher than or equal to 20 mm |
| Short-Term Excursion | Up to 200 deg C (less than 4 hours) |
| Max Cable Temperature | 200 deg C |
| Pressure Resistance | 10000 hPa (145 psi) |
| Shock Resistance | 5 g @ 60 Hz |
| Converter Rise Time | Less than 15 us |
| Converter Linearity Error | Less than or equal to 1-4% depending on range |
| Converter Supply Voltage | -23 VDC to -32 VDC |
| Converter Output Voltage | -4 VDC to -20 VDC or -2 VDC to -18 VDC |
| Protection Class | IP20 (Converter), IP66 (Sensor and cable) |
| Structural Materials | Stainless steel case with PEEK/PPS tip (Sensor), ALMgSi alloy (Converter) |
| Certifications | CE, ATEX, IECEx, CSA (Intrinsic Safety Ex ia IIC T4/T6 Gb) |
Mechanical Monitoring & TSI Features
The transducer hardware executes high-precision eddy-current probe scaling protocols, transforming physical distance metrics between the 8 mm sensor tip and the target shaft into low-impedance analog voltage variations. Plant operators execute gap voltage validation (-10 VDC targets) during static mechanical centering setups to verify that the target surface resides safely within the defined 2 mm linear instrumentation envelope. This dynamic response enables real-time diagnostic captures of complex rotor dynamics, including critical oil film instabilities, shaft centerline positioning, and high-velocity radial vibrations. The internal circuitry within the CON031 driver implements cross-talk suppression balancing to isolate the inductive fields and prevent signal distortion when adjacent proximity sensors reside within dense multi-axial mounting patterns.
Frequently Asked Questions
Q: How does the chosen target material composition modify the transducer scaling output?
A: The factory pre-calibrated parameter curves assume a standard 42CrMo4 (AISI 4140) ferromagnetic steel target block. Utilizing the sensor assembly with non-magnetic metals or different alloy steel structures shifts the core eddy-current induction coefficients, requiring a recalibration of the CON031 converter loop.
Q: Is hot-swapping supported for the CON031 converter module when the instrumentation loops are active?
A: No. Disconnecting or reattaching the system components under live operating voltage compromises intrinsic safety validation parameters. Technicians must fully isolate the external negative DC power supply feed before conducting maintenance or replacement actions.
Q: What are the continuous operational limitations regarding the sensor cable installation environment?
A: The armored PTFE cabling handles continuous thermal exposure up to 150 deg C, with short-duration thermal excursions allowing limits up to 200 deg C for periods under 4 hours without degrading the signal insulation layer.
Field Installation Guidelines
- Probe Gap Positioning: Slide the threaded sensor housing into the mounting bracket, adjusting the position while checking voltmeter readouts until achieving the nominal target offset voltage, confirming the assembly occupies the true center of the linear calibration frame.
- Cable Shield Ground Grounding: Land the armored sensor shield directly at the central junction box bulkhead grounding terminal block, preserving electrical isolation down the remaining path to eliminate stray noise interference.
- Mechanical Clearance Zones: Maintain a minimum space configuration of 20 mm for the target face perimeter to avoid field contamination. Ensure all connecting cables avoid direct routing contacts along sharp structural surfaces.
- Junction Enclosure Mounting: Mount the IP20 rated CON031 converter housing onto an internal 35 mm DIN-rail inside an enclosure matching the relevant hazardous area classifications to secure the circuit boards from airborne dust.