idle_buffer_loss

Measure gas flow from Tk1000 tank during idle time.

Idle is defined as a period of time without tower activity and when VFD_800x and XV_801x_OUT sensors are close to 0.

formula

idle_buffer_loss = 6 * (first(tk_1000_scf) - last(tk_1000_scf)) / number_of_data_points

This is calculated over 20 minute time window. So first is t-10 minutes and last is t+10 minutes. Only the records from the idle time are taken into account.

The output is SCFM as records are spaced at 10 second interval.