EPRO PR6426/010-140 Eddy Current Displacement Sensor
EPRO PR6426/010-140 Eddy Current Displacement Sensor
Origin: Germany
Brand: EPRO
Based on the eddy current effect, high-frequency oscillating current in the preamplifier flows into the probe coil through the cable, generating an alternating magnetic field. When the measured metal body approaches, induced current, i.e. eddy current, is generated on the metal surface. This eddy current flow field generates an alternating magnetic field in the opposite direction to the probe coil, which in turn changes the amplitude and phase of the high-frequency current in the probe coil. The preamplifier converts this change into a direct current voltage output proportional to the distance, thereby achieving displacement measurement.
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Product Introduction
technical parameter
Sensitivity: 2V/mm (50.8mV/mil) ± 1.5% max
Air gap (center): approximately 5.5mm (0.22 ")
Long term drift:< 0.3%
Static measurement range: ± 4.0mm (0.157 ")
Tested material: Ferromagnetic steel (42CrMo4 standard)
Maximum surface velocity: 2500m/s (98425ips)
Shaft diameter: ≥ 200mm（7.87”）
Working temperature range: -35 ℃ to 180 ℃ (-31 ℉ to 356 ℉)
Temperature offset (<4 hours): 200 ℃ (392 ℉)
Maximum cable temperature: 200 ℃ (392 ℉)
Temperature error (+23 to 100 ℃): Zero point -0.3%/100 ° K, sensitivity<0.15%/10 ° K
Probe pressure resistance: 6500hPa (94psi)
Vibration and impact resistance (25 ℃): 5g at 60Hz
Product Features
Non contact measurement: using the principle of eddy current response, it does not require direct contact with the object being measured, avoiding wear and interference on the surface of the object being measured, and can measure high-precision and high-speed moving objects.
High precision and high reliability: Advanced design and manufacturing processes ensure high precision and stability of measurements, enabling reliable operation in complex industrial environments and providing accurate data support for the safe operation of equipment.
Multiple installation methods: With installation threads or rectangular installation flanges, it is convenient to install on various equipment and can adapt to different equipment structures and installation space requirements.
Strong adaptability of cables: self-locking waterproof joints or bare wire methods can be selected for cable ends, armored or unarmored cables can be selected, and 1m cables can be selected with or without joints.
Application areas: Mainly used in key turbine machinery equipment such as steam turbines, gas turbines, water turbines, compressors, pumps, fans, etc., used to measure radial and axial displacement, position, eccentricity, and motion parameters of shafts, monitor equipment status and diagnose faults, and ensure safe and stable operation of equipment.
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