Epro PR6423/004-120-CN CON021
Epro PR6423/004-120-CN CON021
Epro PR6423/004-120-CN CON021
Epro PR6423/004-120-CN CON021
Epro PR6423/004-120-CN CON021
Epro PR6423/004-120-CN CON021
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PR6423/004-120-CN CON021

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The PR6423/004-120-CN CON021 is an eddy current signal converter designed for critical turbomachinery applications, with frequency response from 0 to 20,000 Hz, operating temperature range -30 to 100°C.
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Technical specifications for PR6423/004-120-CN CON021

  • Manufacturer:
    Emerson
  • Part Number:
    PR6423/004-120-CN CON021
  • Product Family:
    Epro
  • Product Type:
    Eddy Current Signal Converter
  • Frequency Range (-3 dB):
    0 to 20000 Hz
  • Rise Time:
    <15 µs
  • Operating Temperature:
    -30 to 100°C (-22 to 212°F)
  • Shock and Vibration:
    5g @ 60 Hz @ 25°C
  • Protection Class:
    IP20
  • Supply Voltage Range:
    -23V to -32V (Output -4V to -20V); -21V to -32V (Output -2V to -18V)
  • Housing Material:
    LMgSi 0.5 F22
  • Mounting:
    4 Screws M5x20
  • Key Benefit:
    Solves the pain point of high-frequency shaft monitoring in critical turbomachinery with 20 kHz frequency response, <15 µs rise time, and multiple hazardous area approvals for global deployment in power generation, oil and gas, and industrial processing.
  • Weight:
    0.4 kg
  • Estimated shipping dimensions:
    20x20x4cm
  • Tariff Code:
    8483409090
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Connection Safety and Compliance

Features:

  • Wide frequency response from 0 to 20,000 Hz with <15 µs rise time enables high-speed monitoring of radial and axial shaft displacement, position, eccentricity, and speed on critical turbomachinery.
  • Multiple hazardous area approvals including ATEX Ex ia IIC T4, IECEx, and CSA Class I Division 1/2 allow deployment in explosive environments worldwide with intrinsic safety or non-sparking configurations.
  • Robust environmental specifications with operating temperature -30 to 100°C, 5g shock and vibration resistance.
The PR6423/004-120-CN CON021 delivers exceptional dynamic performance with a frequency range extending from DC to 20,000 Hz and a rise time of less than 15 microseconds. This wide bandwidth captures both static shaft position and high-frequency vibration components essential for diagnosing developing faults in high-speed rotating equipment. For steam and gas turbines operating at speeds exceeding 10,000 RPM, the converter’s rapid response ensures that critical events such as rubs, instabilities, and transient vibrations are detected and recorded before they escalate into catastrophic failures.

The PR6423/004-120-CN CON021 carries multiple hazardous area certifications that enable deployment in classified locations across North America, Europe, and international markets. Its intrinsic safety (ia) rating—ATEX II 2 G Ex ia IIC T4 Gb, IECEx Ex ia IIC T4 Gb, and CSA Class I Division 1—allows direct installation in Zone 0, 1, or Division 1 areas when used with appropriate safety barriers. For less demanding environments, non-sparking (nA) approvals cover Zone 2 and Division 2 applications.

Built to withstand the most demanding industrial conditions, the PR6423/004-120-CN CON021 operates reliably across a wide temperature range of -30 to 100°C, making it suitable for both Arctic outdoor installations and turbine casings where heat is a constant factor. Its ability to withstand 5g shock and vibration at 60 Hz ensures continued accuracy even on equipment with significant mechanical excitation. The IP20-rated housing, constructed from LMgSi 0.5 F22 aluminum alloy, provides protection against dust and incidental contact while maintaining lightweight characteristics at just 120 grams.

The PR6423/004-120-CN CON021 Emerson Epro Eddy Current Signal Converter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Emerson Epro PR6423/004-120-CN CON021 Eddy Current Signal Converter Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Emerson Epro PR6423/004-120-CN CON021 Eddy Current Signal Converter Specs

General

  • Manufacturer Emerson Epro
  • Model PR6423/004-120-CN CON021
  • Condition New Original ready stock
  • Product Family PR6422/000-000-CN CON021,PR6424/000-000-CN CON021,PR6425/000-000-CN CON021
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Key Power Equipment: Widely used in steam turbines, gas turbines, and water turbines.
  • Heavy-duty Industrial Compressors: Used for monitoring the operating status of centrifugal and axial flow compressors.
  • Environmental Adaptability: The PR6423 sensor features a stainless steel enclosure, IP67 protection rating, and can withstand harsh industrial environments ranging from -40°C to 85°C.
  • Measurement Principle: Utilizing the non-contact eddy current principle, changes in distance between the sensor probe and the rotating shaft surface are converted into voltage or current signals.
  • Signal Output:Typically, the output is a voltage signal proportional to the displacement (e.g., 8 V/mm).
  • Physical Connection: The sensor is connected to CON021 via a dedicated cable (typically a 4-core shielded wire).
  • Certification: The product has the CE mark and is ISO quality certified.
  • Explosion-proof Safety: The "-CN" suffix for the Chinese market typically indicates compliance with Chinese national explosion-proof standards (GB standards) or relevant regulations, making it suitable for explosive gas environments.
  • Material Compliance: The sensor chain is pre-calibrated for commonly used materials in turbine machinery (such as 42CrMo4/SAE 4140 steel) to ensure measurement accuracy meets industry standards.
Description
The PR6423/004-120-CN CON021 is a precision eddy current signal converter engineered for critical rotating machinery such as steam, gas, and hydro turbines, compressors, pumps, and fans. It measures radial and axial shaft displacement, position, eccentricity, and speed/key phasor with a frequency response from 0 to 20,000 Hz and rise time of less than 15 µs. 

With an operating temperature range of -30 to 100°C and shock and vibration resistance of 5g at 60 Hz, the PR6423/004-120-CN CON021 is built for demanding industrial environments. Its IP20 protection class housing weighs approximately 120 grams and mounts with four M5x20 screws included in delivery. 

The PR6423/004-120-CN CON021 carries multiple hazardous area approvals including ATEX II 2 G Ex ia IIC T4 Gb for intrinsic safety, IECEx Ex ia IIC T4 Gb, and CSA Class I Division 1 for use with current limiting safety barriers. Non-sparking (nA) approvals include CSA Class I Division 2 Ex nA II T3..T4. 

This signal converter solves the pain point of reliable, high-frequency shaft monitoring in critical turbomachinery by providing precise eddy current signal conditioning with fast response time and wide frequency range. 
Alternative Names
PR6422/000-000-CN CON021 PR6424/000-000-CN CON021 PR6425/000-000-CN CON021 PR6426/000-000-CN CON021
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What probes are compatible with the PR6423/004-120-CN CON021?
It is designed for PR6422, PR6423, PR6424, PR6425, PR6426, and PR6453 proximity probes. PR6425 requires the extended range version (CON021/91x-xxx).
What hazardous area approvals does this converter carry?
ATEX II 2 G Ex ia IIC T4 Gb for intrinsic safety, IECEx Ex ia IIC T4 Gb, CSA Class I Division 1 (with safety barrier), and CSA Class I Division 2 for non-sparking (nA) applications.
What is the frequency response of the PR6423/004-120-CN CON021?
It provides a frequency range from 0 to 20,000 Hz (-3 dB) with rise time less than 15 µs, suitable for high-speed turbomachinery monitoring.
What is the operating temperature range for this converter?
It operates from -30 to 100°C (-22 to 212°F), with intrinsic safety (ia) versions rated for -20 to 80°C when used with current limiting safety barriers.