[UT] PZ Cal 1.3

Utility profile - PZ Calibration

Setup:

• Turn off Brew/Temperature Delta; save
• Turn off BT Scales, HW Scales, turn on Forced Predictive; save
• Optional: set PZ Cal to the startup profile so boiler doesn't heat on boot
• Reboot (otherwise Brew Delta stays on)
• Wait for temp <25 C
• Run the first 5 seconds of the profile to clear pressure
• Run the first 5 seconds of the profile and verify pressure stays ≤0.1 bar. If necessary, backflush, clean, and remove shower screen for the test.

Test:

• Tare a cup on a scale
• Start PZ Cal without placing the cup
• After initial 3 seconds of flow, wipe shower screen, drip tray, and then place the cup. The flow test will start at 20 sec.
• Weigh cup + water after the shot. Target is 100 g; adjust PZ up if weight is over and down if weight is under
• Repeat test steps as needed

Reset:

• Reset Brew/Temperature Delta; save
• Turn on desired Scales option, turn off others; save
• Reset startup profile if changed
• Reboot