Excellent PLC
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Product Introduction
The Epro PR6423/001-011-CN + CON021 is a high-precision eddy current proximity sensor system engineered for continuous non-contact monitoring of shaft vibration, axial displacement, and radial clearance in rotating machinery. Developed under the legacy of Epro GmbH, now integrated into Emerson Process Management, this sensor combination is designed to operate reliably in harsh environments and demanding industrial applications.
The system consists of the PR6423/001-011-CN probe (with 8mm diameter and specific mounting dimensions) and a CON021 signal converter that transmits and conditions the signal to be compatible with standard vibration monitoring systems, including API 670-compliant platforms. Its proven design is widely deployed in the energy, petrochemical, and heavy industrial sectors, where real-time machine condition monitoring is crucial for preventing failures and optimizing asset lifecycle.
Product Specifications
| Parameter | Specification |
|---|---|
| Sensor Model | PR6423/001-011-CN |
| Converter Module | CON021 |
| Sensor Type | Eddy Current Proximity Probe |
| Measuring Range | 0.25 mm to 2.0 mm (typical) |
| Sensor Head Diameter | 8 mm |
| Probe Length | 32 mm |
| Thread Size | M10 x 1 |
| Thread Length | 11 mm |
| Sensing Material | Ferromagnetic (e.g., steel, iron alloys) |
| Signal Output Type | -24 V to -12 V DC, depending on target distance |
| Frequency Response | DC to 10 kHz |
| Accuracy | ±0.05 mm within calibrated range |
| Temperature Range (Probe) | -35°C to +180°C |
| Temperature Range (CON021) | -35°C to +85°C |
| Protection Level | IP67 for the probe, IP65 for the connector |
| Connection Cable | 3-wire shielded system with extension (typically 5–9 meters) |
| Material (Sensor Housing) | Stainless Steel 1.4571 (AISI 316Ti) |
| Compliance Standards | API 670, CE, RoHS, ATEX (Zone 2) |
| Weight | 0.22 kg |
Product Applications
-
Steam and Gas Turbines
Ideal for radial and axial vibration monitoring of high-speed rotating shafts in critical turbine applications. -
Compressors and Pumps
Helps identify early signs of imbalance, misalignment, and bearing wear. -
Generators and Gear Units
Suitable for monitoring shaft positioning, thermal expansion, and gear mesh variations. -
Industrial Fans and Blowers
Used to detect mechanical looseness, unbalance, and cavitation-induced wear. -
Condition Monitoring Systems (CMS)
Fully compatible with machine monitoring systems such as MMS from Emerson. -
Oil & Gas Processing Plants
Ensures continuous, high-accuracy vibration data for safety-critical rotating machinery. -
Thermal and Nuclear Power Plants
Widely used in generator and turbine trains requiring non-contact displacement detection.
Product Advantages
-
Reliable in Harsh Conditions
Rugged stainless steel housing and high ingress protection allow operation in contaminated, high-temperature, and humid environments. -
Precision Engineering
Factory-calibrated to deliver highly linear output across the defined measurement range. -
Modular and Scalable
Easily integrated into new and existing condition monitoring architectures. -
API 670-Compliant
Developed to meet or exceed global standards for critical machinery protection. -
Extended Cable Options
Flexible system configurations with extension cables and signal converters. -
Excellent Signal Stability
Minimal signal drift and robust immunity to EMI ensure reliable long-term operation. -
Non-Contact Operation
Minimizes mechanical wear and maintenance, increasing asset monitoring uptime. -
Interchangeability
Compatible with a wide range of probes and monitoring systems within the PR6423 family. -
Cost-Effective Monitoring
Reduces maintenance downtime and catastrophic failure risks through early warning insights.
FAQ
-
What does the “CN” in the model code represent?
“CN” typically refers to the China region standard configuration, possibly indicating local calibration or packaging adaptation. -
What target materials are compatible with this sensor?
It is designed for use with ferromagnetic materials such as steel, nickel, and iron-based alloys. -
What is the typical installation distance (gap) for this probe?
The nominal installation gap is 2.0 mm, but it should be calibrated per system requirements. -
Does the sensor require recalibration over time?
Calibration should be verified periodically, especially after machinery overhauls or sensor replacement. -
Can this model be used for high-temperature turbines?
Yes, the sensor withstands temperatures up to 180°C, making it suitable for most turbine applications. -
Is the sensor intrinsically safe?
It supports installation in ATEX Zone 2 areas; for Zone 1/0, consult additional intrinsic safety options. -
What systems can this sensor integrate with?
Compatible with Epro MMS systems, as well as third-party condition monitoring units supporting standard eddy current signals. -
Can the CON021 be mounted remotely?
Yes, the converter can be installed remotely and connected via extension cables. -
What thread mounting is used for installation?
The sensor uses an M10 x 1 thread with an 11 mm thread length. -
What is the primary difference between this and PR6423/010 models?
The difference lies in the thread length, probe length, and mechanical fit; both use 8mm sensing tips.
Related Models from the Same PR6423 Series
| Model | Description | Probe Diameter | Length | Temp. Range | Thread |
|---|---|---|---|---|---|
| PR6423/000-000+CON021 | Standard 8mm eddy current sensor | 8 mm | 32 mm | -35°C to +180°C | M10x1 |
| PR6423/002-030+CON021 | High-temp long thread version | 8 mm | 50 mm | -35°C to +220°C | UNF 3/8-24 |
| PR6423/010-040+CON021 | 8mm probe with 40mm length and 4mm thread | 8 mm | 40 mm | -35°C to +180°C | M10x1 |
| PR6423/003-010+CON021 | 5mm probe for compact sensor spaces | 5 mm | 25 mm | -35°C to +180°C | M8x1 |
| PR6423/014-040+CON021 | Thick wall installation probe | 8 mm | 40 mm | -35°C to +180°C | M10x1 |
| PR6423/004-010+CON021 | Short sensor for axial proximity detection | 8 mm | 20 mm | -35°C to +180°C | M10x1 |
Popular Models from the Same Brand (Epro / Emerson)
| Model | Description | Category | Application | Output Interface |
|---|---|---|---|---|
| MMS3120/022-100 | Vibration signal processor | Monitoring Module | High-speed rotating machines | Analog / Relay |
| MMS6110 | 19″ Rack CMS for multi-channel monitoring | CMS Platform | Industrial machinery | Digital / Analog |
| CON011 | Converter unit for eddy current probes | Signal Conditioner | Probe integration | 3-wire Epro Probes |
| PR9268/301-000 | Velocity sensor for general vibration | Seismic Sensor | Pumps, motors, fans | Voltage |
| TQ403 | High-speed tachometer sensor | Speed Measurement Device | Rotating machinery | TTL / Analog |
| MMS3110/022-000 | Machine monitoring signal interface module | Interface Module | Turbines, compressors | Digital / Relay |
