Product Description

The VM23 has been developed, particularly, for the measurement and monitoring of vibrations on rotating machines. In addition is is a useful tool for machines which have the purpose of generating vibration, like vibration conveyors, vibrating screens and separators. Such measurements help to monitor the condition of the machine in order to avoid unscheduled shut-down. Furthermore vibration measurement is carried out prior to the distribution of new machinery and subsequently to repair with a view to quality control and the issuing of product guarantees. The basis for successful machine condition monitoring is the measurement of the vibration severity over a longer period of time.

Measurements are taken at regular intervals of time and recorded. The VM23 measures and records vibration velocity, also known as vibration severity. Its specification corresponds to the ISO 2954 regulations and is suitable for, among other things, the measurement of machine vibrations on machines with a nominal speed at or above 120 min-1, in accordance with ISO 10816. Additionally the VM23 can measure vibration displacement and main frequency. The VM23 includes different band filters for acceptance measurements according to various standards, like ISO 20816 or ISO 8528. An external piezoelectric accelerometer is used as the sensor, and is provided together with the instrument. The VM23 is fitted with an electronic measurement point detector (VMID) which enables it to take routine measurements of a large number of measurement points very effectively.

In the common hierarchy of condition monitoring the VM23 is equivalent to “Level 1”. This represents the long term monitoring of parameters with low technical and personnel requirements. For fault detection (“Level 2”), as a further step, spectral diagnostic measurements are taken, which require a large degree of expertise and sophisticated measurement technology. In the development of the VM23 value was placed on simple operation and maintenance requirements, which enable trained personnel to operate the instrument without the need of being specially qualified.