Section 5 Standard Operations

5.1 Overview

5.1.1 Tips for the use of 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).

5.1.2Use of 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.

 

 

Press a key repeatedly until the desired character appears on the

 

 

screen. A space can be entered by using the underscore on the

 

 

YZ_ key.

 

 

Note: A USB keyboard (with US keyboard layout) or a USB Barcode

 

 

handset scanner can be used for input (see Section 9 on page 119).

 

 

Table 1 Alphanumeric keypad

 

 

 

Icon / key

Description

Function

 

 

 

ABC/abc

Alphabetic

When entering alphabetic characters (ex. user-entered units), this key allows to

toggle between upper and lower case letters.

 

 

 

 

 

# %

Symbols

Punctuation, symbols and numerical sub- and superscripts may be entered.

 

 

 

123

Numeric

For entering regular numbers.

 

 

 

CE

Clear Entry

Clear the entry.

 

 

 

Left Arrow

Backspace

Moves back one position. This 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.

 

 

25

Page 25
Image 25
Hach DR 2800 Standard Operations, Overview, Tips for the use of the touch screen, Use of the alphanumeric keypad