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        Emerson PR 6426/000-121 CON 031
        Emerson PR 6426/000-121 CON 031
        Emerson PR 6426/000-121 CON 031
        Emerson PR 6426/000-121 CON 031
        Emerson PR 6426/000-121 CON 031
        Emerson PR 6426/000-121 CON 031
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        PR 6426/000-121 CON 031

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        1001 reviews ｜ Need a Specific Revision?
        Emerson PR 6426/000-121 CON 031 is a 32 mm eddy current sensor designed for precise static and dynamic distance measurements. It operates within an eddy current measuring chain system for rotating machinery monitoring.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
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        Technical specifications for PR 6426/000-121 CON 031

        • Manufacturer:
          Emerson
        • Part Number:
          PR 6426/000-121 CON 031
        • Product Family:
          Epro
        • Product Type:
          32mm Eddy Current Sensor
        • Sensitivity:
          2 V/mm (50.8 mV/mil) ≤ ±1.5% max
        • Air Gap (Center):
          Approx. 5.5 mm (0.22”) Nominal
        • Long Term Drift:
          < 0.3%
        • Range Static:
          ±4.0 mm (0.157”)
        • Target/Surface Material:
          Ferromagnetic Steel (42 Cr Mo 4 Standard)
        • Maximum Surface Speed:
          2,500 m/s (98,425 ips)
        • Shaft Diameter:
          ≥200 mm (7.87”)
        • Operating Temperature Range:
          -35 to 175°C (-31 to 347°F)
        • Temperature Excursions <4 Hours:
          200°C (392°F)
        • Maximum Cable Temperature:
          200°C (392°F)
        • Temperature Error (at +23 to 100°C):
          -0.3%/100°K Zero Point, <0.15%/10°K Sensitivity
        • Pressure Resistance To Sensor Head:
          6,500 hpa (94 psi)
        • Shock and Vibration:
          5g (49.05 m/s2) @ 60Hz @ 25°C (77°F)
        • Material:
          Sleeve – Stainless Steel, Cable – PTFE
        • Sleeve Thread:
          0=NO THREAD
        • Armored Cable:
          0=WITHOUT
        • Total Sensor Length:
          0=Mounting Plate
        • Adaptor Plug:
          1=WITHOUT
        • Total Cable Length:
          2(6 m)
        • Cable End:
          1=OPEN
        • Weight:
          0.45 kg
        • Estimated shipping dimensions:
          28x24x4cm
        • Tariff Code:
          5401102000
        • 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 Protection Application Compatibility

        Features:

        • High-precision eddy current sensing for static and dynamic distance measurement
        • Wide temperature and mechanical tolerance range for demanding industrial conditions
        • Integrated compatibility with CON 011 converter for calibrated measurement chains
        Emerson PR 6426/000-121 CON 031 is an eddy current sensor designed for use in measurement chains with CON 011 signal converters. It supports static and dynamic distance measurement in rotating machinery applications. The system configuration allows monitoring of axial displacement, radial vibration, and speed-related signals. It is calibrated as part of a complete sensor-converter set to ensure measurement consistency.

        The sensing characteristics of Emerson PR 6426/000-121 CON 031 include a defined sensitivity of 2 V/mm and a measurement range of ±4.0 mm. The air gap is approximately 5.5 mm, supporting standardized positioning. Long-term drift is maintained below 0.3%, ensuring stable signal behavior. These parameters define the measurement response within the eddy current system.

        In terms of construction, Emerson PR 6426/000-121 CON 031 uses stainless steel sleeve material and PTFE cable construction. It is designed for ferromagnetic steel targets and supports high surface speed conditions up to 2,500 m/s. The sensor operates across a wide temperature range and connects via LEMOSA interface to the signal converter. The system maintains structured integration within calibrated measurement chains.

        The PR 6426/000-121 CON 031 Emerson 32mm Eddy Current Sensor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Emerson PR 6426/000-121 CON 031 32mm Eddy Current Sensor 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 PR 6426/000-121 CON 031 32mm Eddy Current Sensor Specs

        General

        • Manufacturer Emerson
        • Model PR 6426/000-121 CON 031
        • Condition New Original ready stock
        • Product Family PR6426/000-110 CON021,PR6423/003-130 CON021,PR6423/01C-010 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.
        • Automatic Interlock Shutdown: When shaft vibration or displacement exceeds a preset safety threshold, the sensor signal triggers a protective relay, immediately forcing a shutdown to prevent catastrophic mechanical damage.
        • Critical Speed ​​Limit Exceedance: When large rotating equipment passes through the critical speed range, the displacement amplitude is monitored in real time to ensure that the mechanical amplitude remains within the structurally permissible safety range, preventing resonance damage.
        • Thrust Bearing Protection: Axial displacement is monitored to prevent direct metal-to-metal contact or friction between the rotor and stator, issuing an emergency action signal before the bearing oil film fails.
        • Process Loop Integrity: The sensor has a self-monitoring function, capable of identifying open or short circuits in real time, preventing malfunctions or failures of the protection system due to signal loss.
        • Gearbox High-Speed ​​Shaft Monitoring: Installed in heavy-duty gearboxes, it monitors the dynamic runout of high-speed rotating gear shafts in real time, assessing gear meshing conditions and bearing wear.
        • Refinery Turbine Drives: Deployed at the turbine drive end of critical power pumps to prevent unit damage caused by rotor axial movement due to sudden load changes.
        • Steel Plant Blower Units: In high-temperature and high-dust environments, utilizing the non-contact characteristics of sensors, it accurately captures the running trajectory and center position of large blower main shafts.
        • Marine Propulsion System Monitoring: Installed at the main bearing position of large ship propellers to monitor axial load displacement caused by wave impact during ship navigation.
        • Multi-vendor Interface Integration: The signal output standard is unified, allowing seamless integration with analog input modules of distributed control systems (DCS) or programmable logic controllers (PLCs) from different brands.
        • Universal Preamplifier Adaptation: The CON 031 signal converter can be matched with sensor extension cables of various lengths, ensuring impedance matching and signal linearity are maintained at different physical installation distances.
        • System Replacement Capability: Fully compliant with the industrial API 670 standard, it can serve as a high-performance replacement for the sensor end of existing large-scale monitoring systems (such as the Bently Nevada system).
        • Digital Protocol Collaboration: Through standard current loop or voltage output, it can achieve data communication with various digital vibration analysis software and asset management platforms without the need for additional converters.
        Description
        Emerson PR 6426/000-121 CON 031 is an eddy current sensor developed for use in combination with CON 011 signal converter systems to form complete measuring chains. It is designed for static and dynamic distance measurement on rotating machinery, supporting both axial displacement and radial vibration detection. The sensor system also enables speed measurement and key pulse generation when used with pulse wheels or shaft key marks. The configuration ensures compatibility with standardized converter-sensor calibration. The model Emerson PR 6426/000-121 CON 031 is used as part of a matched measurement chain system.

        The sensing performance of Emerson PR 6426/000-121 CON 031 includes a sensitivity of 2 V/mm (50.8 mV/mil) with a maximum deviation of ±1.5%. It provides a static measurement range of ±4.0 mm and maintains a long-term drift of less than 0.3%. The air gap at center is approximately 5.5 mm nominal. These parameters define the measurement characteristics of the sensor. The model Emerson PR 6426/000-121 CON 031 is calibrated for consistent eddy current response.

        The mechanical and material design of Emerson PR 6426/000-121 CON 031 includes stainless steel sleeve construction and PTFE cable material. It is designed for use on ferromagnetic steel targets, specifically 42 Cr Mo 4 standard material. The sensor supports a minimum shaft diameter of 200 mm and a maximum surface speed of 2,500 m/s. Pressure resistance at the sensor head reaches 6,500 hPa. The model Emerson PR 6426/000-121 CON 031 is structured for high mechanical stability.

        The temperature performance of Emerson PR 6426/000-121 CON 031 covers an operating range from -35°C to 175°C and short-term excursions up to 200°C for less than 4 hours. The maximum cable temperature is also rated at 200°C. Temperature error behavior includes -0.3%/100°K zero point drift and less than 0.15%/10°K sensitivity deviation at +23°C to 100°C. These parameters define thermal stability behavior. The model Emerson PR 6426/000-121 CON 031 is designed for controlled thermal variation environments.

        The installation and system integration of Emerson PR 6426/000-121 CON 031 includes adjustment of sensor-to-target distance via mounting flange positioning. It uses a linear guided support structure for precise alignment during installation. The sensor connects to CON 011 signal converters through a LEMOSA connector system. The converter provides a nominal supply voltage of -24 V DC and selectable output ranges of -4 to -20 V or -2 to -18 V. The model Emerson PR 6426/000-121 CON 031 is part of a calibrated measurement chain system.
        Alternative Names
        PR6423/10R-141 CON031 PR6426/000-121 CON031 PR6424/000-030-CN CON021 PR6423/015-000-CN CON021 PR6423/002-040 CON041 PR6423/00C-031-CN CON041 PR6423/011-010 CON021 PR6424/000-040 CON021 PR6423/010-140 CON021 PR6423/014-110 CON021 PR6426000-121
        Technical notes
        Emerson PR 6426/000-121 CON 031 32 mm eddy current sensor, sensitivity 2 V/mm (50.8 mV/mil) ≤ ±1.5%, air gap approx. 5.5 mm nominal, static range ±4.0 mm, long-term drift <0.3%, target material 42 Cr Mo 4 ferromagnetic steel, maximum surface speed 2,500 m/s, shaft diameter ≥200 mm, operating temperature -35°C to 175°C, short excursion 200°C (<4 hours), cable temperature max 200°C, temperature error -0.3%/100°K zero point and <0.15%/10°K sensitivity, pressure resistance 6,500 hPa, stainless steel sleeve with PTFE cable, 6 m total cable length, open cable end, compatible with CON 011 signal converter, -24 V DC nominal supply, output range -4 to -20 V or -2 to -18 V, LEMOSA connector interface.
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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.
        VIEW ALL FAQS
        What material is used for the target surface?
        Ferromagnetic steel (42 Cr Mo 4 standard material).
        What temperature conditions can the PR 6426/000-121 CON 031 sensor withstand?
        It operates from -35°C to 175°C with short excursions up to 200°C.
        What is the primary function of Emerson PR 6426/000-121 CON 031?
        It is used for static and dynamic distance measurements in eddy current systems.
        How is the measuring distance adjusted during installation?
        By shifting the mounting flange until the required output signal is reached.

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