PART THREE - OPERATION
SECTION 1 - USER INTERFACE
Rev. 6-501
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
33
display the top-level menu screen for a desired main
branch (CALIBRATE, CONFIGURE or TEST/MAINT), use
the
Ø
Ø
and
×
×
keys
to select the corresponding line, and
press the
ENTER key
. (Pressing the
MENU key
also
“aborts” the procedure to change values or selections.
2.
ENTER key:
Pressing this key does two things: it dis-
plays submenu and edit/selection screens, and it enters
(saves) configuration values/selections.
3.
ESC key:
Pressing this key always takes the display up
one level in the menu tree. (Example: With the “MAIN
MENU” branch selection screen displayed, pressing the
ESC key
once takes the display up one level to the
MEASURE screen.) This key can also “abort” the proce-
dure to change a value or selection.)
4.
Õ
Õ
and
Ö
Ö
keys:
Depending on the type of displayed
screen, these keys do the following:
•
MEASURE/Menu Screens: These keys are non-functional.
•
Edit/Selection Screens: “Coarse” adjusts the
displayed numerical value/choice.
5.
×
×
and
Ø
Ø
keys:
Depending on the type of displayed
screen, these keys do the following:
•
MEASURE Screen: Changes the bottom auxiliary dis-
play line, shown in reverse video, between measured
temperature, and Output 1 or Output 2 mA value.
•
Menu Screens: Moves reverse video cursor up or
down respectively to select a displayed line item.
•
Edit/Selection Screens: “Fine” adjusts numerical
value, enclosed by parenthesis, up or down respec-
tively or moves up or down respectively between
choices enclosed by parenthesis.
FIGURE 3-1 Analyzer Keypad