Title: Manual - Varmemåler Hydrocal M3 - På rør.PDF
8) Battery level indicator; 9) Faults indicator; 10) Heating system flowmeter index; 11) Wired M-Bus data index; 11+12) Wireless M-Bus data index (predisposition); 13) Historical data index; 14) Pulse value index (k); 15) Measurement unit index; T1) Level selection button; T2) scroll button within the selected level;Hydrocal M3 Manuale utente – User Manual - v1.437PROGRAMMING MENUThe programming menu is useful for the ordinary programming of the meter and for configured data verification.PROGRAMMING MENU ACCESSTo enter the programming menu, press the T1 button and select level 3. Then keep the T2 button pressed for more than 3 seconds.Once this is done, you will be prompted to enter a password for security reasons. Select the digit using the T2 button and change the single numbers with the T1 button.The password is communicated by the manufacturer to the installer only.After entering the password, it is possible to start the parameters configuration.