LS-3517 Portable vibration pen

LS-3517 Portable vibration pen

Use

Vibration pen is a kind of ultra-small vibration measuring instrument, it can measure vibration acceleration, velocity and displacement three parameters, can measure the machine vibration caused by imbalance, misalignment, loose or bearing gear fault.LS-3517 is small and light, easy to carry, with all-metal shell, excellent anti-interference performance, is an ideal tool for equipment condition monitoring.

LS-3517 measuring vibration pen has the function of high and low frequency dividing, which makes it possible to judge the fault of rolling bearing and gearbox.The high frequency value (HI) and low frequency value (LO) of vibration acceleration were measured respectively and compared. When the high frequency value was less than the low frequency value, it indicated that the vibration was mainly caused by the low frequency. It should be judged according to the speed standard.When the high frequency value is more than 5 times of the low frequency value, it indicates that the vibration is mainly caused by the high frequency. Bearing and gear faults, such as rolling bearing wear and gear tooth breakage, can be considered.

The vibration sources of all kinds of mechanical vibration mainly come from structural design, manufacture, installation, debugging and environment itself.The existence of vibration will inevitably cause structural fatigue damage, parts wear and impact damage and other faults.For low-frequency vibration, the destructive displacement damage of fatigue strength should be considered.For high-frequency vibration above 1KHz, the impact force and resonance failure should be mainly considered.It is proved theoretically that the fatigue of vibration components is proportional to the vibration velocity, the energy produced by vibration is proportional to the square of vibration velocity, and the energy transfer results in wear and other defects.Therefore, no matter from fatigue damage or wear and tear, the speed standard is the most appropriate criterion for judging vibration.

By measuring the vibration speed of the rotating machinery and comparing it with the vibration intensity criterion (10Hz ~ 1kHz) -iso2372 standard, the running state of the equipment can be known.

LS-3517 Portable vibration pen

 Standard configuration：

LS-3517 Portable vibration pen

ISO2372 Machine vibration grading table：