Linear Range: The 25mm eddy current sensor can achieve a measuring range of 12mm (470mil) for measuring rotor expansion. The TM0120 is an integrated probe, with probe and extension cable in one piece, and together with the TM0122 preamplifier, forms a 25mm eddy current probe system. The TM0120 sensor cable is available in standard lengths of 1m, 5m, and 9m (2-core shielded cable), and custom lengths are available. Non-standard lengths can be customized.

System Parameters

Electrical Parameters

Power supply: 22-30VDC@50mA , current isolated

Linear range: 12mm (470mils) from probe surface approx. 2mm (80mils) (AISI4140 steel)

Sensitivity: 0.8 mV/μm (20mV/mil) ± 4

Temperature sensitivity: The probe and the supplied 5-meter cable are within ±5% FS of each other at operating temperature.

Linearity error (deviation from a straight line): within ±0.25mm (±10 mil) of a straight line

Frequency Response (±3db): 0 – 2.0 KHz

Minimum Diameter: 67mm (2.6″)

Environmental Indicators

Temperature: Operating temperature: -35℃ ～ +85℃

Storage temperature: -50℃ ～ +100℃

Humidity:

100% non-condensing