The price of an accident is increasing. Important is not only the price of a repair, but also the downtime of a technological line. Many machines have not been diagnosed till these days and maintenance teams do not know in which technical condition the machine really is. It concerns engines, transmissions, fans, pumps or cylinders of paper machines.
It is possible to monitor the condition of these devices by the system ifm® octavis for the price of patrol diagnostics. It is a modern vibration monitoring on-line system which reduces the amount of transmitted data. The assessment is performed very close to the measured spot, directly on the machine. Octavis has got permanently connected sensors of vibrations – accelerometers. They are made by semiconductor technology and are called MEMS (Micro-Electro-Mechanical Systems). These sensors use a capacity principle of measurement. With a help of high-performance electronics with a signal processor, the signal from vibration sensors is processed, using FFT transformation. The results are frequency spectrums, a status of particular diagnostic parameters and a decision-making semaphore (green, yellow, red).
Only measuring the temperatures is not sufficient (as it was before) to find out the condition of the machine. It is possible to measure vibrations of the bearing status in selected frequency areas. Then it is necessary to know the status of technological quantities and operational revolutions of the machine. From one measuring point on the machine you can obtain more parameters for a decision about the diagnosis.
On the data server, there is the octavis software running for setting of evaluation units and OPC server. It saves measured data to the SQL database. From here, the data are read by OPC client and are displayed in SCADA visualization Promotic which were developed by Microsys®. Dif® carries out regular remote assessments of measured data. The service of the device is essential. If necessary, the team will come on site, will carry out an additional measurement and corrections – detailed diagnostics, balancing of the machine or an alignment. It is advantageous to perform the assessment regularly once a month.
Picture 1 Box with electronics ifm octavis
Picture 2 Installation on the machine – engine transmission
Picture 3 Output with status beacons for each machine
Picture 4 Screen with detailed parameters