LTH Electronics HPT63, Operation Manual

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4 User Interface
14
The four keys - , , and - allow the user to control and configure the
unit. The keys are used for changing display options, navigating around the menu
system and for changing unit parameter values. To operate a key, press it until the
display responds (about half a second). If you hold a key down, the display will cycle
through the available options at a rate of about one per second.
4.2 The Menu System
The fold-out sheet at the end of the manual shows the menu system. Each column
constitutes a menu. Use the (Page) key to move from one menu column to the
head of the next. When you select the next menu, the display shows the menu title
e.g. Parameters. Pressing with moves backwards through the menus.
Use the and keys to move up and down the menu options in each column.
Depending on the current settings, some menu options may not be present. For
example, if Set Point 1 is disabled, the screen displaying Set Point 1 will not appear.
When the instrument is switched on, it shows the main display screen. You can use
the and keys to select various display options, depending on the
configuration of the unit. However, on pressing the (page) key to reach the
configuration menus, the first screen encountered is the Access Code screen. To
proceed beyond this screen you must enter an access code as detailed in
Section 18
Menu Access.
Note: When in the menu structure, if none of the buttons are pressed for two
minutes, the unit will time out and return to the main display. The Access
Code display will be reset to 0000, 30 seconds after returning to the main
display.