Vibration monitoring

Measurement of casing vibration is in accordance with the ISO Standard 10816. The two actual measured values are shown in the display, as well as their percentage values with respect to the set limit. A violation of the preset limit values is signalled visually (LED) as well as through the built-in relays for Alert and Danger alarms.

Rolling-element bearing condition monitoring

For acquiring the rolling-element bearing condition, a DFT of the sensor signal in the range 500 to 5000 cycles per second is performed, and the sum of the largest RMS value of vibration acceleration is formed. A comparison of the measured values with the bearing values taken prior to use is shown as the “Bearing Condition Value”.

Trend measurement

The VC-1500 has a trend measurement function for the casing vibration, rolling-element bearing condition and temperature over a selectable period between 10 days and 10 months.