Hach DR 2800, User Manual, Page: 21 / 96

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Section 5 Standard Operations
5.1 Getting Started
5.1.1 Tips for Using the Touch Screen
The entire screen is touch-activated. To make a selection, press the
screen with a fingernail, fingertip, pencil eraser, or a stylus. Do not
press the screen with a sharp object, such as the tip of a ball
point pen.
• Do not place anything on top of the screen, to prevent damage
or scratching on the screen.
• Press keys, words, or icons to select them.
• Use scroll bars to move up and down long lists very quickly.
Press and hold the scroll bar, then move up or down to move
through the list.
• Highlight an item from a list by pressing it once. When the item
has been successfully selected, it will be displayed as reversed
text (light text on a dark background).
5.1.2 Using the alphanumeric keypad
This display is used to enter letters, numbers, and symbols as
needed when programming the instrument. Unavailable options are
disabled (grayed out). The icons on the right and left of the screen
are described in
Table 1 .
The central keypad changes to reflect the chosen entry mode.
Continue to press a key until the desired character appears on the
screen. A space can be entered by using the underscore on
the
YZ_
key.
Table 1 Alphanumeric Keypad Functions
Icon Description Function
ABC Alphabetic
When entering alphabetic characters (e.g. user-entered units), toggles between upper and
lower case letters.
#% Symbols Punctuation, symbols, and numerical sub- and superscripts may be entered.
123 Numeric Enters regular numbers.
CE
Clear Entry Clears the entry.
LEFT ARROW
Backspace Moves back one position. Deletes the character previously entered in the new position.
RIGHT ARROW
Advance Moves to the next space in an entry when two adjacent characters occur on the same key.