Non-contact eddy current sensor for radial and axial shaft displacement, position, eccentricity and motion.
MATCHED CHAIN
CON041
Signal converter paired with the PR6426 family to produce the conditioned measurement output.
The PR6426 is designed for critical rotating machinery including steam, gas and hydro turbines, compressors, pumps and fans. Its 32 mm sensing tip and ±4.0 mm static range suit large shafts and wide position measurements.
Verified Performance Envelope
Sensor type
32 mm eddy current sensor
Static measurement range
±4.0 mm (±0.157 in)
Sensitivity
2 V/mm (50.8 mV/mil), maximum deviation ±1.5%
Nominal center air gap
Approximately 5.5 mm (0.22 in)
Target material
Ferromagnetic steel, calibrated to 42CrMo4 standard target
Minimum shaft diameter
200 mm (7.87 in)
Maximum surface speed
2,500 m/s
Operating temperature
-35 to 175°C (-31 to 347°F)
Sensor construction
Stainless-steel sleeve with PTFE cable
The Calibrated Signal Path
SHAFT Ferromagnetic target
›
PR6426 Gap sensing
›
CON041 Signal conditioning
›
MONITOR Protection input
Chain integrity matters: sensor, cable and converter are calibrated as a measurement chain. Cable length, target material and converter pairing affect the transfer characteristic; replacing only one element without confirming the chain can shift zero and sensitivity.
AMIKON SUPPLY SERVICE
Critical Measurement Spares Without Delay
AMIKON supports maintenance teams with exact-part procurement, responsive quotation and worldwide delivery. We handle requests around complete chain identity, cable configuration, operating condition and outage timing.
12-Month Warranty Notify us within 7 days if a concern is found. Eligible returns must remain in original condition and include a clear reason. Return or replacement follows inspection; return shipping remains the buyer's responsibility.
Can the sensor be replaced without the converter? Only after confirming the installed calibration and cable configuration. The PR6426 and CON041 operate as a matched chain; an unmatched element can alter zero and sensitivity.
Why must target material be confirmed? Eddy-current response changes with electrical and magnetic properties. Standard performance is based on 42CrMo4; another alloy can require a different adjustment.
What installation dimensions affect accuracy? Air gap, target diameter, clear area around the tip, cable routing and minimum bend radius all influence a stable measurement.
Is PR6426 suitable for a small shaft? The stated shaft diameter is at least 200 mm. A smaller shaft can change linearity and should not be accepted without application-specific confirmation.
What should be recorded before shutdown? Record the complete sensor and converter markings, overall cable length, armored or non-armored construction, target alloy, running gap, output polarity and monitor channel setup.
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Quote the Complete Measurement Chain
Send sensor, converter and cable markings together with target material and required length.