This chart shows the hours of the day where there are more or less alarms. For the period selected, all alarms occurring between 00:00 and 01:00 are summed, divided by the number of days in the period and then divided by 6 to get the average number per 10 minutes. This can show how many alarms are generated by the process, as opposed to operator or maintenance activities. Often there are low counts during meal times or breaks.