GE General Electric Oxygen Equipment PT878 User Manual
Chapter 2. Initial Setup
Transport® Model PT878 Portable Liquid Flowmeter User’s Manual
17
2.4.2 Keypad
The PT878 keypad has 25 keys. The functions for each key are as follows
(see Figure 7 on page 18):
(see Figure 7 on page 18):
•
3 function keys (
[F1]
,
[F2]
,
[F3]
) — enable you to select the special
functions which appear at the bottom of the screen.
•
12 numeric keys (including – and .) — enable you to enter numeric data.
•
4 arrow keys ([
W
], [
X
], [
S
], [
T
]) — enable you to move through the
menu options.
•
[?] Help key— enables you to access on-line help (discussed on
page 19).
page 19).
•
[MENU]
Menu key — enables you to access the Main Menu.
•
[ENTER]
— enables you to enter a particular menu, and enters selected
values into the PT878 memory.
•
[SEL] — enables you to move between data measurements on the screen.
•
[ESC]
— enables you to exit menus or menu options at any time; cancels
a numeric entry.
•
Red key [
] — turns the power on or off, and toggles the backlight on
or off.