Material Of The Area The Sensor Faces; Sensor Positioning - CEMB TR-NC/8 Manual Del Usuario

4.6

Material of the area the sensor faces

Although the sensor can face any ferromagnetic material, it should however be considered that the sensitivity and
linearity of the measurement range very much depend on the chemical properties of the material.
Unless otherwise requested, the measuring system is calibrated in the CEMB laboratories using AISI 4140 stainless
steel (42CrMo4) as reference material, which is normally used in the construction of machine shafts.
4.7

Sensor positioning

The magnetic field generated by the sensor is propagated in all directions, therefore, if there are other electrically
conductive materials in this field (known as sensor reference cone), the measurement result will be affected.
For this reason, when installing the sensor in the machine, the following conditions need to be observed:
► Free space around the sensor
► Distance from the shaft shoulders
► Minimum shaft diameter ► Distance between sensors
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