DH Instruments PPC4, Operation And Maintenance Manual

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PPC4™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 90
5.3 Keypad Layout and Protocol
The PPC4 has a keypad and navigation knob for local operator access to on screen menus and for data
entry in addition to direct pressure control keys.

Numeric keypad (black characters on white keys)

Navigation controls – navigation keys and knob for selecting
and entering menus and fields in the graphic display (white
characters on blue keys)

Direct pressure control keys to manually control pressure,
enter a target pressure or toggle the vent sequence. (white
characters on grey and black keys)

Vent indicator LED
Figure 13. Keypad layout
5.4 Conventions for the Advanced Interface
5.4.1 Navigation Controls and Keypad
Menu navigation and selection with the graphical display is described in the text as follows:
•
[xxx] indicates buttons, (i.e. [Tools] )
•
<xxx> indicates tabs (i.e. <Control> )
•
xxx indicates other fields (i.e. Unit )
Buttons, tabs and fields used in sequence are shown on one line, separated by commas, for
example:
[Settings], <Pressure>, Unit
Front panel keys are shown as individual keys, (i.e.

)
Note
For dedicated front panel keys, such as

,

,

, and

, any time a
key is shown in the manual, it should be interpreted to mean “press this
key”. For example:

to return to the Main Run Screen means “Press the

button to return to the Main Run Screen”.
The numeric keypad is used for data entry and editing. Pressing

changes the numerical
sign when editing.