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PR6423/018-010 CON021

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Emerson PR6423/018-010 CON021 combines an 8 mm non-contact eddy current sensor and signal converter for measuring shaft displacement, position, eccentricity, speed, and key signals in critical turbomachinery.
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Technical specifications for PR6423/018-010 CON021

  • Manufacturer:
    Emerson
  • Part Number:
    PR6423/018-010 CON021
  • Product Family:
    Epro
  • Product Type:
    8mm Eddy Current Sensor & Signal Converter Kit
  • Stock:
    1
  • Tip Diameter:
    8mm
  • Case Threads:
    M10x1
  • Armored Cable:
    Yes
  • Case Thread:
    105mm
  • Adapter Plug:
    With
  • Cable Length:
    5.0m
  • Cable End:
    Lemo
  • Sensor Linear Measurement Range:
    2 mm (80 mils)
  • Sensor Initial Air Gap:
    0.5 mm (20 mils)
  • Sensor Minimum Shaft Diameter:
    25 mm (0.79)
  • Sensor Target Material (Ferromagnetic Steel):
    42CrMo4 (AISI/SAE 4140) Standard Other (On Request)
  • Sensor Protection Class:
    IP66, IEC 60529
  • Sensor Operating Temperature Range:
    Sensor incl. 1m Cable: -35 to +180°C (-31 to 356°F); Cable & Connector: -35 to +150°C (-31 to 302°F).
  • Sensor Material:
    Sensor Tip (PEEK Polyether Ether Ketone), Case (Stainless Steel), Cable (PTFE Polytetrafluoroethylene), Connector (Brass, nickel-plated).
  • Converter Frequency Range (-3 dB):
    0 to 20000 Hz
  • Converter Rise Time:
    <15 µs
  • Converter Operating Temperature Range:
    -30 to 100°C (-22 to 212°F)
  • Converter Shock and Vibration:
    5g @ 60 Hz @ 25°C (77°F)
  • Converter Protection Class:
    IP20
  • Converter Supply Voltage Range:
    -23V to -32V (Output Range -4V to -20V); -21V to -32V (Output Range -2V to -18V).
  • Converter Housing Material:
    LMgSi 0.5 F22
  • Converter Mounting:
    4 Screws M5x20 (Included in Delivery)
  • Weight:
    0.76 kg
  • Estimated shipping dimensions:
    23x23x4cm
  • Tariff Code:
    9026801000
  • 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 Firmware Environmental Rating Application Scenarios

Features:

  • Captures radial and axial shaft displacement, position, eccentricity, speed, and key signals through non-contact eddy current measurement.
  • Combines a 20 kHz converter frequency range with a rise time below 15 µs for fast response to dynamic machinery conditions.
  • Provides an IP66 sensor, high-temperature cable construction, armored protection, and secure Lemo connectivity for demanding industrial installations.
Stable shaft monitoring plays an important role in protecting high-value rotating equipment from developing mechanical problems. Emerson PR6423/018-010 CON021 supplies continuous non-contact measurement without adding friction or loading to the rotating surface. Operators can use the resulting signals to observe shaft position and dynamic movement during normal operation. Early recognition of changing behavior supports more informed maintenance decisions and improved machinery availability.

Mechanical and electrical elements are coordinated as one measurement chain in Emerson PR6423/018-010 CON021. The 8 mm probe senses changes at the shaft surface, while the CON021 converts the sensor response into a usable output signal. Fast signal processing helps preserve information generated by rapidly changing shaft motion. Such performance benefits turbine, compressor, pump, gearbox, and fan monitoring systems requiring dependable dynamic measurements.

Installation flexibility strengthens the practical value of Emerson PR6423/018-010 CON021 in retrofit and maintenance projects. The M10 × 1 sensor case, 105 mm threaded section, armored 5.0 m cable, and self-locking Lemo connection support secure mechanical integration. Converter screw terminals accommodate power and output conductors up to 1.5 mm², while the supplied mounting screws simplify enclosure installation. Durable materials and broad operating-temperature limits make the kit suitable for demanding machinery environments.

The PR6423/018-010 CON021 Emerson 8mm Eddy Current Sensor & Signal Converter Kit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Emerson PR6423/018-010 CON021 8mm Eddy Current Sensor & Signal Converter Kit Manuals,Datasheets,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 PR6423/018-010 CON021 8mm Eddy Current Sensor & Signal Converter Kit Specs

General

  • Manufacturer Emerson
  • Model PR6423/018-010 CON021
  • Condition New Original ready stock
  • Product Family PR6423/011-010 CON021,PR6423/010-140 CON021,PR6423/00R-131 CON041
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.
  • Built-in Tuning Firmware: The preamplifier CON021 incorporates dedicated tuning firmware specifically designed for the high-frequency excitation characteristics of the 8mm probe, ensuring stable signal gain within the 2.0mm standard linear range.
  • Linearization Algorithm: The firmware is pre-programmed with a standard ferromagnetic steel (42CrMo4) response curve algorithm, enabling high-precision, delay-free digital linearization of micron-level gap variations.
  • Dynamic Characteristic Optimization: The firmware algorithm optimizes amplitude-frequency characteristics across the 0 to 20,000 Hz frequency range, minimizing phase distortion during high-frequency vibration signal transmission.
  • Zero-Point Temperature Drift Compensation: The firmware incorporates specific temperature coefficient compensation logic, which, in conjunction with the probe hardware, strictly limits temperature errors to an extremely low range compliant with API 670 standards.
  • Probe Operating Temperature: The PR6423 8mm probe and cable feature an IP68 anti-permeability design, enabling long-term stable operation in extreme high and low temperature cycles ranging from -35°C to +150°C.
  • Converter Protection Rating: The CON021 pre-signal converter housing has an IP20 protection rating, suitable for installation in control cabinets, instrument boxes, or industrial indoor environments with basic dust protection.
  • Pressure-Resistant and Corrosion-Resistant Housing: The probe's metal sheath is made of high-grade stainless steel, with excellent resistance to industrial oil corrosion and the ability to withstand internal bearing housing pressures up to 10,000 hPa (approximately 145 psi).
  • Vibration and Shock Resistance: The entire assembly (probe and converter) has passed a 5g @ 60Hz (at 25°C) mechanical vibration test, adapting to high-vibration industrial environments.
  • Small and Medium-Sized Rotor Vibration: Due to its small 8mm diameter head design, lateral clearance is minimal, making it ideal for radial vibration measurement of large and medium-sized or small and medium-sized rotating machinery with shaft diameters between 50mm and 80mm.
  • Steam Turbine Keyphase Trigger: Commonly used as a keyphasor sensor, it captures pulses from keyways or protrusions on the main shaft, providing accurate speed and phase references for DCS systems.
  • Multistage Pump Axial Displacement: Widely used in high-speed equipment such as power plant feedwater pumps and chemical multistage centrifugal pumps, it monitors the axial movement of thrust bearings in real time to prevent serious accidents caused by friction between moving and stationary parts.
  • Space-Confined Bearing Housings: Compared to the 16mm large probe, this 8mm kit is easier to wire and mount within the compact structure and extremely limited internal installation space of small industrial turbine or fan bearing housings.
Description
Emerson PR6423/018-010 CON021 is a complete eddy current measurement kit for monitoring radial and axial shaft behavior without physical contact. The assembly is suitable for steam, gas, and hydro turbines, as well as compressors, gearboxes, pumps, and fans. A 2 mm linear measurement range and 0.5 mm initial air gap support precise observation of dynamic displacement, shaft position, eccentricity, speed, and key signals. The sensor is intended for shafts with a minimum diameter of 25 mm.

The PR6423 sensor supplied with Emerson PR6423/018-010 CON021 has an 8 mm PEEK tip, an M10 × 1 threaded stainless-steel case, and a 105 mm case thread length. A 5.0 m armored PTFE cable terminates in a self-locking Lemo connector, while the included adapter plug simplifies connection to the converter. Standard calibration applies to ferromagnetic 42CrMo4 steel, equivalent to AISI/SAE 4140, with other target materials available on request.

Environmental durability allows Emerson PR6423/018-010 CON021 to operate around demanding rotating machinery. The IP66 sensor complies with IEC 60529 and protects the sensing assembly against industrial contaminants. The sensor and first 1 m of cable tolerate temperatures from -35°C to +180°C, while the remaining cable and connector operate from -35°C to +150°C. Construction materials include PEEK at the sensing tip, stainless steel for the case, PTFE for the cable, and nickel-plated brass for the connector.

The CON021 converter in Emerson PR6423/018-010 CON021 processes sensor signals across a frequency range of 0 to 20,000 Hz at the -3 dB point. A rise time below 15 µs enables rapid response to dynamic shaft movement. The converter operates from -30°C to +100°C and withstands shock and vibration of 5 g at 60 Hz and 25°C. An IP20 LMgSi 0.5 F22 housing provides a robust enclosure for protected cabinet or machinery-panel installation.

Power and output characteristics of Emerson PR6423/018-010 CON021 depend on the selected operating range. A supply of -23 V to -32 V supports an output range of -4 V to -20 V, while a supply of -21 V to -32 V supports an output range of -2 V to -18 V. The converter connects to the transducer through a self-locking Lemo plug and uses screw terminals for supply and output wiring up to 1.5 mm². Four M5 × 20 mounting screws are included for secure installation.
Alternative Names
PR6423/O18-010 CON021 PR6423/O18-O1O CONO21 PR6423/018-0I0 CON02I PR6423/13R-030 CON021 PR6423/10R-141 CON031 PR6423/013-130 CON021 PR6423/105-141 CON041
Technical notes
Optimized for confined rotating machinery, the Emerson PR6423/018-010 CON021 8mm eddy current sensor & signal converter kit utilizes a compact 8mm tip diameter to capture precise shaft displacements. This non-contact measurement system provides high-fidelity, real-time vibration tracking where installation space is tightly restricted.
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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.
Can Emerson PR6423/018-010 CON021 operate near high-temperature turbomachinery?
Yes. The sensor and first 1 m of cable operate from -35°C to +180°C, and the remaining cable and connector operate from -35°C to +150°C.
Does Emerson PR6423/018-010 CON021 include an armored sensor cable?
An armored 5.0 m PTFE cable with a Lemo cable end and adapter plug forms part of the supplied sensor configuration.
Which shaft material suits the standard calibration of Emerson PR6423/018-010 CON021?
Standard calibration uses ferromagnetic 42CrMo4 steel, equivalent to AISI/SAE 4140. Calibration for other target materials is available on request.
What machinery can use Emerson PR6423/018-010 CON021?
Emerson PR6423/018-010 CON021 supports shaft monitoring on steam, gas, and hydro turbines, compressors, gearboxes, pumps, and fans.