The sensitivity of a material can be determined by means of a material specimen with the help of a Brüel & Kjær Vibro calibration unit AC-126. The displacement sensor is calibrated for material no.: 1.7225 (42CrMo4) in accordance with DIN 17 200, corresponding to AISI/SAE 4140.įurther materials and their sensitivities are listed in the table below. 5 m with pig-tails Connectionģ = COM Sensitivity of the displacement sensor More ever, the sensor can be replaced without recalibration. The output voltage of the sensor is proportional to the distance between the probe tip and the measuring surface, within the displacement measuring range.Įxtraneous disturbances, such as earth loops, temperature influences and dielectric influences like oil and gas can be neglected.ĭirect connection of signal cables with a length up to 1000 m, is possible. A prerequisite for measurement is a metallic measuring surface, preferably made o 42CrMo4. The non-contacting displacement sensors are used to measure relative shaft vibration, relative shaft displacement, rotor speeds ect. Any unauthorized modification excludes Brüel & Kjær Vibro’s liability for resulting damages. System and accessories must not be changed either in construction or safety technology without the express consent of Brüel & Kjær Vibro. Prohibition of Unauthorized Modifications If the system is integrated into a machine or designed to be assembled, commissioning must not take place until the machine the system is to be integrated in conforms to the EC directives. If the use of the system in conjunction with machines or plant sections can produce risks outside of Brüel & Kjær Vibro’s responsibility, the user is expected to prepare and distribute safety technical instructions or warnings and to ensure that the person concerned has received and understood the same. machine parts), systems, sensors and cables can adopt dangerous temperatures, whereby burning, among other things, can occur in the event of contact.
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