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8
3. C
ONFIGURING
& O
PERATING
THE
F
LOWMETER
3.1
The Keypad & Display
The keypad provides access to the microprocessor for flowmeter configuration. During operation, the
instrument’s 40-character LCD indicates flow rate and totalizer values.
3.1.1 Components
Components
#
Description
1
LCD
2
Numeric keys:
0
through
9
and decimal (
.
).
3
Arrow keys: For scrolling up, down, left, right.
4
ENTER
key: Operates like the Return (Enter)
key on a computer.
5
ERASE
key: Deletes last value entered. In most
setup and diagnostic menus, accesses main
menu. Accesses Menu 00 (flow rate and net
totalizer display) if pressed twice.
6
MENU
key: Provides access to setup and
diagnostic menus.
F
IGURE
3: K
EYPAD
& D
ISPLAY
F
EATURES
3.1.2 Display Contrast & Backlight
The display is backlit for ease of viewing in low-light conditions. In order to save battery life, the backlight
shuts off automatically after several minutes have passed without a keypad entry. The display has a
variable contrast setting, and you may need to adjust the contrast on the display as ambient temperature
changes:
1.
Press
MENU
followed by the
±
(plus/minus) key.
2.
LCD CONTRAST
appears on the display with a bar indicating current contrast setting.
3.
Press
LEFT
or
RIGHT ARROW
keys to adjust the contrast.
4.
Press
ENTER
when complete.
3.2
Direct Menu Access
The unique 2-digit address (reference
Table 2, page 9
) for each setup and diagnostic menu allows the
user to directly access the desired menu:
1.
Press
MENU
, and the letter
M
appears in the lower right corner of the display.
2.
Enter the desired menu’s 2-digit address.