Application
Industrial scenarios such as medium and large gas turbines and steam turbines that require high-precision thermal expansion monitoring.
Key features
Principle: Based on the eddy current effect (non-contact, wear-free).
Signal output: 4-20 mA two-wire current transmission, full scale corresponds to full extension of the rod (20 mA).
Models: Available in two measuring ranges of 50 mm and 100 mm.
Protection rating: IP54 (dustproof and splashproof).
Integrated design: Built-in processing electronics, external power supply 20-32 VDC required.
Technical specifications
Electrical parameters
Power supply: 20-32 VDC, maximum load resistance 500Ω.
Current consumption: Nominal 60 mA (24 VDC), maximum 70 mA.
Output signal: Linear current signal (4 mA corresponds to fully inserted rod, 20 mA corresponds to fully extended).
Performance indicators
Accuracy: Linearity <1% FSD, resolution and repeatability <0.05% FSD.
Temperature drift: Zero point and sensitivity drift <150 ppm/°C.
Frequency response: Electrical 0-1000 Hz, mechanical 0-5 Hz.
Environmental adaptability
Temperature range: Operating 0-80°C, Storage 0-100°C.
Vibration resistance: Radial 100g, axial 300g (complying with IEC 60068-2-27).
Mechanical parameters
Weight: 4.0 kg for 50 mm model, 5.1 kg for 100 mm model.
Material: Aluminum alloy and stainless steel, flange mounting (M10 bolts).
Spring force:
50 mm model: Initial force 30 N (rod extended), maximum force 73 N (rod inserted).
100 mm model: Initial force 20 N, maximum force 74 N.
Model differences
50 mm model: Scaled from "50 to 0 mm", light weight, higher initial spring force.
100 mm model: Scaled from "100 to 0 mm", slightly higher weight, spring design better suited to longer travels.
EH 140 cable assembly for AE 119
