Description: Period of time from the commissioning of a plant, part of a plant, a component or a line system; Name: service life
Description: passed time period after comissioning of a system, sub-system, component or piping; Name: Operating time 
Description: interval time of a pump kick, if pump kick mode is operator specific. the time for the next pump kick results of the sum of pump kick time and pump kick time difference; Name: pump kick time difference