Flowrate of tank filling or clearing

Determine the flowrate of filling or clearing the tank by a number between 0 and 10!

		Data	Current Value
		Flowrate	:="Flowrate":
		Tank Level	:="TankLevel":
		:="Alarm":
		Measurement	Unit
		Tank Level Overflow	:="TankLevelOverflow":
		Tank Level Maximum	:="TankLevelMaximum":
		Tank Level Midth	:="TankLevelMidth":
		Tank Level Minimum	:="TankLevelMinimum":
		Tank Level Lack	:="TankLevelLack":