PR6423/13R-040 CON021 Emerson 8mm Eddy Current Non-Contact Displacement Sensor
The Epro PR6423/13R-040 CON021 is an industrial-grade, non-contact 8mm eddy current displacement sensor system designed for continuous condition monitoring of critical rotating machinery like turbines, compressors, and pumps. This assembly pairs a PR6423/13R-040 probe (featuring a reverse-mount 3/8"-24 UNF threaded body and a 4.0-meter armored cable) with a CON021 driver/converter to measure minute electromagnetic impedance changes. Operating across a 0 to 20,000 Hz frequency range, it delivers highly accurate (linearity error <±1%) measurements of static and dynamic shaft displacement, radial vibration, axial thrust position, eccentricity, and rotational speed within a 2.0 mm linear range.
Global Distribution Network
Amikon supplies industrial automation spare parts, including PLC, DCS, and TSI systems, to more than 160 countries worldwide.
- North America: Steady demand from the United States and Canada, primarily serving oil & gas plants and automotive production sites
- Europe: Significant operations in Germany and the UK, with regular orders from chemical plants and heavy equipment manufacturing lines
- Middle East and Africa: Supporting refinery projects and mining operations in UAE, Saudi Arabia, South Africa, and remote field installations
- Asia-Pacific: Broad regional coverage including China, Singapore, Australia, and India, serving semiconductor fabrication, power stations, and metallurgy plants
- South America: Stable operations in Brazil, Chile, and Argentina, primarily supporting mining, copper operations, and hydropower projects

Service Benefits
- 100% Original Parts - Vetted industrial automation & DCS/PLC spares
- Massive Inventory - 30,000+ items ready for immediate shipment
- 12-Month Warranty - Fully covered by a 1-year quality guarantee
- Fast Global Shipping - Secure express delivery to 160+ countries
- 24/7 Rapid Response - Dedicated 1-on-1 customer service
Technical Specifications & FAQs
What is the primary function of the PR6423/13R-040 CON021 assembly in machinery protection?
The Epro PR6423/13R-040 CON021 is an industrial-grade, non-contact eddy current measurement system designed for critical turbomachinery protection systems. The assembly consists of the PR6423/13R-040 8mm proximity probe and the CON021 signal converter/driver. It functions by measuring minute electromagnetic impedance changes to provide high-precision monitoring of radial shaft vibration, axial thrust position, shaft eccentricity, and rotational speed in sleeve-bearing rotating machinery.
What do the specific suffixes in the model number PR6423/13R-040 CON021 represent?
The complete model designation
PR6423/13R-040 CON021 breaks down into precise mechanical and electrical specifications:
- PR6423: Represents the core 8mm eddy current sensor probe series
- 13R: Specifies a 3/8"-24 UNF threaded body configured for reverse-mount installation
- 040: Indicates a built-in stainless steel armored cable variant with a total length of 4.0 meters
- CON021: Denotes the matching signal converter/driver module that translates raw impedance into standard voltage signals
Which machinery monitoring systems are natively compatible with the PR6423/13R-040 CON021?
The PR6423/13R-040 CON021 sensor system is fully integrated into the MMS6000 and AMS 6500 machinery protection systems. It connects directly to specific rack-based monitoring cards, such as the MMS 6110 dual-channel radial vibration module and the MMS 6410 dual-channel shaft displacement monitor, serving as an essential power plant instrumentation spare part.
Can the PR6423/13R-040 CON021 be used as an alternative to Bently Nevada proximity systems?
Yes, the PR6423/13R-040 CON021 is a widely recognized, high-reliability alternative to the Bently Nevada 3300 XL 8mm proximity transducer system. When configured correctly within an API 670 compliant system, the PR6423/13R-040 CON021 provides equivalent non-contact displacement measurement accuracy (linearity error <±1%) and can be engineered into critical asset protection loops.
What are the key environmental and installation precautions for the PR6423/13R-040 CON021?
For optimal safety and performance, the PR6423/13R-040 CON021 must be installed according to hazardous area guidelines. The PR6423/13R-040 probe tip operates in temperatures ranging from -30°C to 100°C within the machine casing, while its armored cable protects against harsh lubricants. The CON021 driver features an IP20 protection class and should be mounted inside an appropriately rated enclosure near the machine to minimize signal attenuation across its 0 to 20 kHz frequency range.
Compatible Parts & Models
| Model Number | Compatible Part |
| CON041 PR6423/000-131 | KJ3221X1-BA1 12P2531X102 |
| CON041 PR6424/000-121 | KJ3222X1-BA1 12P2532X072 |
| 1X01046H01L | KJ2003X1-BB1 12P3439X012 |
| PR6423/015-111 CON041 | KJ3241X1-BA1 12P2506X042 VE4006P2 |
| KJ4001X1-NB1 12P3368X012 | KJ4001X1-BE1 12P0818X072 |
| PR6423/010-000 CON021 | PR6423/010-010 CON021 |
| A6312/08 | PR6423/013-020 CON021 |
| PR6423/000-010 CON021 | KJ3203X1-BA2 13P0085X012 |
| PR9268/200-000 | KJ3221X1-BA2 13P0125X012 |
| PR6424/000-030 CON021 | KJ3201X1-BA1 12P2535X052 VE4001S2T2B2 |
| PR6423/00R-101 CON031 | KJ2201X1-BA1 12P3162X122 SLS1508 |
| KJ3222X1-BA1 12P2532X122 VE4033S2B1 | KJ3203X1-BA2 13P0085X012 VE4001S2T2B4 |
| KJ3241X1-BA1 12P2506X042 | KJ3223X1-BA1 12P2871X022 VE4003S2B6 |
| KJ4001X1-CA1 12P0623X062 | KJ3001X1-BG1 12P0557X162 VE4002S1T1B1 |
| KJ3002X1-BG2 12P1731X082 | KJ2003X1-BA2 12P2093X112 VE3005 |
| KJ3221X1-BA1 12P2531X082 VE4003S2B2 | PR9268/301-000 |
| MMS6110 | A6740-10 |
| KJ2201X1-HA1 12P3322X022 | MMS6210 |
| PR6423/002-030 CON021 | KJ2101X1-BA 12P2690X012 |
| PR6423/00R-010 CON021 | 12P0631X012 |