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PR6423/018-040 CON021

8mm Eddy Current Sensor

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Technical specifications for PR6423/018-040 CON021

  • Product Model
    PR6423/018-040 CON021
  • Product Parameters
    8mm Eddy Current Sensor
  • Tariff Code
    8537101190
  • Country of origin
    GERMANY
  • Place of shipment
    Xiamen, China
  • Estimated Shipping Size
    16x15x2cm
  • Manufacturer
    Epro
  • Weight
    0.15 kg
  • Static
    ±1.0 mm (.04 in)
  • Dynamic
    0 to 500μm (0 to 20 mil)
  • Measuring error after calibration
    < ±1% linearity error
  • Long term drift
    0.3% max
  • Influence of supply voltage
    < 20 mV/V
  • Thread of sensor
    M10x 1 or 3/8” – 24 – UNF – 2A
  • Maximum cable temperature
    +200˚ C (392˚ F)
  • Temperature range for storage
    -40 to +70˚ C (-40˚ to 158˚ F)
  • Operating temperature range
    -35 to +180˚ C (-31 to 356˚ F)

Description

PR6423/018-040 CON021
8mm Eddy Current Sensor 
Non-contact sensor 
Case thread, M10x1 or 3/8-24UNF

Information

Overview Manuals Technical notes Product Applications Mechanical Mounting & Positioning

Features:

  • Non-contact measurementof static and dynamic shaftdisplacement
  • Axial and radial shaftdisplacement (position)
  • Shaft eccentricity
  • Shaft vibration (motion)
  • Meets international standards,DIN 45670, ISO 10817-1 andAPI 670
The PR 6423 is a non-contact eddycurrent transducer with a ruggedconstruction and designed forextremely critical turbomachineryapplications such as steam,gas, compressor and hydroturbomachinery, blowers and fans.The purpose of a displacementprobe is to measure position orshaft movement without contactingthe measured surface – the rotor.In the case of sleeve bearingmachines, the shaft is separatedfrom the bearing material by athin film of oil. The oil acts asa dampener and therefore thevibration and position of the shaftare not transmitted through thebearing to the bearing case.

The PR6423/018-040 CON021 EPRO 8mm Eddy Current Sensor may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
EPRO PR6423/018-040 CON021 8mm Eddy Current Sensor 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.
The use of case vibration sensorsis discouraged for monitoringsleeve bearing machines since thevibration produced by shaft motionor position is greatly attenuatedthrough the bearing oil film.The ideal method of monitoringshaft position and motion is bymounting a non-contact eddysensor through the bearing, orinside the bearing, measuringthe shaft motion and positiondirectly. The PR 6423 is commonlyused to measure vibration ofmachine shafts, eccentricity, thrust(axial displacement), differentialexpansion, valve position, and airgaps.
  • Turbines: Steam, gas, and hydro turbines where high thermal stability is required
  • Compressors: Axial and centrifugal compressors susceptible to heavy structural loads
  • Industrial Gearboxes: Heavy-duty reduction and speed-increaser gearboxes
  • Pumps and Fans: Large-scale utility pumps, cooling tower fans, and blowers
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Initial Air Gap: Screw the sensor into the mounting bracket or bearing housing until the tip reaches an initial air gap of exactly 0.5 mm (20 mils) from the target shaft surface.
Tangential Offset: Align the probe body perpendicularly to the target shaft. Ensure the maximum tangential offset does not exceed the structural limits defined by the specific shaft diameter to avoid reading skew.

FAQs

  • What is the fundamental measuring principle of the PR6423/018-040?+
    The PR6423 series utilizes eddy-current technology. It measures the distance between the sensor tip and a conductive target (such as a rotating machine shaft) without physical contact. This provides highly accurate, real-time data on shaft displacement and vibration.
  • Can the sensor operate on its own?+
    No. The sensor, extension cable (like the 040), and an Eddy Current Signal Converter (such as the CON011, CON021, or CON041) form a calibrated measuring chain. The entire chain must be calibrated and connected together to ensure signal integrity and API 670 compliance
  • What is the measurement range of this sensor?+
    The standard linear measurement range is 2 mm (80 mils), with an optimal initial air gap setup of 0.5 mm (20 mils).
  • What is its target sensitivity?+
    Its Incremental Scale Factor (ISF) is 8 V/mm (203.2 mV/mil) when calibrated against standard ferromagnetic steel target material.
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