Application Scenarios
At a combined-cycle power plant in Texas, repeated bearing failures in a 40 MW steam turbine were traced to undetected axial thrust shifts during startup transients. Engineers installed EMERSON PR6423002-001-CN probes on both thrust collar sides, leveraging their reverse-mount design to fit within the cramped bearing housing. The probes fed real-time shaft position data to a 3500 monitoring system, which triggered automatic ramp-rate adjustments when thrust approached limits. Within six months, bearing life increased by 300%, and unplanned outages dropped to zero. In this case, the PR6423002-001-CN wasn’t just a sensor—it was the early-warning sentinel that saved millions in repair costs and lost generation.
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Technical Principles and Innovative Values
Innovation Point 1: Reverse-Mount Design for Space-Constrained Installations
Unlike standard forward-mount probes, the PR6423002-001-CN features threads at the rear, allowing installation in recessed bores where front access is blocked—common in legacy turbines or compact gearboxes. This eliminates the need for custom adapters or machine modifications.
Innovation Point 2: Extended Temperature & Chemical Resistance
The Tefzel® cable jacket and stainless steel tip withstand oil mist, steam, ammonia, and high ambient heat—critical in refineries, chemical plants, and geothermal facilities where standard PVC-jacketed probes degrade rapidly.
Innovation Point 3: Seamless Integration with Predictive Maintenance Ecosystems
When paired with Emerson’s AMS Suite, the PR6423002-001-CN enables continuous machinery health trending, automated alarm escalation, and integration with enterprise asset management (EAM) systems—turning raw displacement data into actionable reliability insights.
Application Cases and Industry Value
In a LNG compression train in Qatar, axial shaft movement during cooldown cycles caused seal wear and gas leaks. Maintenance teams installed PR6423002-001-CN probes on all three compressor stages. The 2 mm range captured full thermal growth profiles, while the API 670-compliant signal integrity ensured reliable trip logic in the 3500 rack. Over 18 months, seal replacements decreased by 70%, and the site passed its first API audit with zero non-conformances on machinery monitoring. For the operator, the PR6423002-001-CN became a cornerstone of operational excellence and safety compliance.
Related Product Combination Solutions
Emerson 3300 XL 8 mm Extension Cable (e.g., 330901-00-02-05-02-00) – extends total cable length to 5 or 9 meters when needed.
Emerson 3300 XL Proximitor® Sensor (e.g., 330180-51-00) – conditioner that converts probe impedance to -2 to -18 VDC output.
Emerson 3500/42M Monitor – accepts PR6423002 signals for vibration, position, and differential expansion.
Emerson AMS Machinery Health Manager – software platform for diagnostics, trending, and alarm management.
Emerson PR6424/010-001 – 11 mm probe variant for larger machines requiring greater range.
Emerson 330103-00-05-05-02-00 – forward-mount 8 mm probe alternative for standard installations.
Emerson 330930-040-01-00 – high-temperature extension cable rated to 260°C for extreme environments.
Installation, Maintenance, and Full-Cycle Support
Proper installation of the PR6423002-001-CN requires:
Clean, non-magnetic mounting surface (stainless steel or Inconel recommended).
Torque to 2.7 N·m (24 in-lb) using the provided wrench flats.
Gap setting at mid-range (～1.0 mm) using a feeler gauge during cold alignment.
Shielded cable routing away from power conductors to avoid noise.
Maintenance is minimal—no calibration needed—but periodic visual inspection for cable abrasion or oil saturation is advised. All PR6423002-001-CN units we supply are factory-tested for sensitivity, linearity, and insulation resistance, and include original Emerson certificates.
We offer a 12-month warranty, technical support for system integration, and compatibility verification with existing 3300/3500 racks. Whether you’re protecting a hydro generator, a refinery recycle gas compressor, or a wind turbine main bearing, the EMERSON PR6423002-001-CN delivers precision, durability, and peace of mind.
Contact us for engineering support, bulk pricing, or assistance with complete machinery monitoring system design.
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