User guide

I-E67-84-1B February,2002 4-1
SECTION 4 - OPERATING PROCEDURES
INTRODUCTION
The TB84PH Advantage Series analyzer has seven
main operating modes: Measure, Calibration,
Output/Hold, Configuration, Security,
secondary Display, and Setpoint/Tune. Within
each mode, several programming states
containing functions specific to the related
mode are available.
The TB84PH Advantage Series analyzer is
equipped with a built-in user interface
through which all analyzer functions are
programmed or monitored. In order to maximize
the viewing area and minimize the space needed
for the keypad, the interface is based on a
custom LCD that contains a group of two or
more icons for each button on the four button
keypad. Each icon represent a key function
that is energized when that function is
required (patent-pending).
Two display regions in the custom LCD handle
the majority of instrument functions. These
regions include a primary display area for the
process variable (e.g., pH) and a secondary
display area for programming text prompts or
auxiliary information.
In addition to the user-friendly interface,
the TB84PH Advantage Series analyzer is
equipped with a group of icons that alerts the
user to an existing FAULT condition,
diagnostic SPIKE output, output HOLD
condition, or activated RELAY. These icons
are located at the top of the LCD and are only
energized when the specified condition is
detected. FAULT conditions are shown in the
secondary display using the FAULT INFO key
when the instrument is in the Measure Mode of
Operation.