I have similar questions, but the fluctuations are 0.3mbar/min to -0.3mbar/min, stabilizing near 0.0 to 0.1mbar/min.
The pressure is dropping over time although very slowly.
What are the criteria for a proper seal?
I've noticed the Shield Alarm values ranging from 50ml/h to 150ml/h.
Are these values representative indicators in terms of initial airtight seal?