prezes As the pressure is equal in all parts of a system that is sealed, which the brew circuit is at the inlet end….the pressure differences can only be due to either the:
- Software PID fluctuations that the system reads but the gauge doesn’t react to
- Software PID fluctuations that the system doesn’t respond to, but the gauge does read
- gauge reading incorrectly
- pressure transducer reading incorrectly
As the gauge is a mechanical device, using a coiled bourdon tube, it’s never likely to be that accurate, or consistent across the range of readings e.g. it might be accurate at 5 bar, over/under read at 2 bar and 10 bar? They can also become less accurate over time.
What happens if you try it on a blind filter with the machine set to a constant 9 bar…
