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In this video we simply explain how to start your Predictive Maintenance, how to choose measurement point location and what the basic vibration measuring equipment looks like.
You need to consider which machines are critical for your factory’s production. These critical machines should have the greatest priority over the other machinery and you should also consider how much time you can spend on measuring them regularly. It is ideal to measure the machines every week, but we are not living in an ideal world. Despite that, try to schedule measurement of those particular machines at least once per month.
Let’s explain what the basic vibration measuring equipment looks like. It consists of the following parts: vibration meter or analyzer, cable, acceleration (or vibration) sensor with a magnetic base.
You place the acceleration sensor on the measuring point, this converts the vibrations into electronic signals, the signals are transmitted via the cable to the vibration meter or analyzer and the signal is processed into the vibration values which you can read on the device screen.
The measurement point is the place on the machine, usually a bearing housing, where you place the vibration sensor and where you take your vibration measurement. The measurement point location must enable you to take repeatable measurements under the same conditions every time. Measurement repeatability is very important!
To obtain quality and repeatable measurements you should prepare your measuring point on the bearing housing. The best way to do this is to fit all measurement points with measurement pads. A measurement pad has flat ground surface, made of magnetic stainless steel and it is connected to the machine with a special glue which has metallic properties when dry. This ensures good vibration transmission. An acceleration sensor is usually supplied with a strong neodymium magnetic base, which ensures good transfer of machine vibrations to the sensor.
The direction of the measurement point, this means radial and axial according to shaft rotation, is important as well. In an ideal world, you would measure in a vertical-radial direction and a horizontal-radial direction on each part of the machine.
00:00 - 01:09 How to start Predictive Maintenance
01:09 - 01:50 Vibration Measuring Equipment
01:50 - 05:54 Measuring Point location and preparation
