Elcometer 331 H Operating Instructions Manual page 13

3.3 THE CONTROLS
All functions of the Half-Cell Meter can be controlled using the keypad. There are two types of keys on the
keypad; fixed function keys and 'soft' keys (Figure 2).
Scrolls up/down
through menus
and lists of values
Increases/
decreases
alphanumeric
values
Accesses menus
Escapes from
menus
Discards values
entered on
display
The function of these 'soft' keys
varies and is defined by symbols
and text on the screen
Figure 2. Half-Cell Meter keypad
Switches the
Half-Cell Meter
on or off
Selects menu
items
Toggles tick
boxes on/off
Confirms values
entered on
display
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