Instruction Manual PUC 28135 Setting the parametersSetting the PUC 28 parameters is menu-driven. The main menu is called using the “Menu”key. This is followed by a request to enter the password. As delivered, the password is set to“0000”. The password may be changed in the menu item “New password”. You may exit themenu at any time using the Menu key. If no key is pressed for about 2 minutes, the PUC 28automatically returns to the display mode. If you exit the menu and call it again within 2minutes, the password is not requested again. In the following sections, the individual menuitems are explained in detail in the context of the menu tree (also see section 12 entitled“Menu tree”).The function of the keys changes depending upon the active menu item.Key Name Function EffectMenu Call or exit the menu for setting the parametersScroll upNavigate Selecting a submenu (moving the arrow)Set a parameter Increasing the number at the cursor orchanging propertiesScroll rightNavigate SelectionSet a parameter Scroll the cursor to the right (e.g., selection ofthe number of a parameter to be changed)Enter Menu selection Open the marked submenuSet a parameter Confirm the value of a parameterTable 4: Functions of the keysExample: Changing the password from 0000 to 2600current display Key(s) RemarkIn the following sections on menu description, it is assumed that the passwordhas already been entered and confirmed and the main menu has already beendisplayed.Call the menu to set parametersThe default setting of the password is 0000and can now be confirmed using “Enter”Scroll up twice to mark the submenu[ SETTINGS ]Open the marked “Settings” submenu using“Enter”PASSWORD0000VALUESSETTINGS7,2 Pa21,8 °C75,6 %rH2 x