User guide

I-E67-84-1B February,2002 13-1
SECTION 13 - DIAGNOSTICS
INTRODUCTION
The TB84PH Advantage Series analyzer performs
a number of diagnostic checks on hardware,
software, and sensor functions. If a
nonconforming condition is detected, the user
is alerted to faults locally by a flashing
FAULT indicating icon and, if configured,
remotely by modulating Analog Output One
(i.e., Spike Output)and/or energizing a Relay
Output (i.e., Diagnostic Relay Output).
Diagnostic faults are interrogated using the
FAULT Info Smart Key. A short text string and
fault code are alternately shown in the
secondary display region. If multiple faults
exist, the FAULT Info Smart Key moves the user
to the next fault. Once all faults have been
interrogated, the analyzer returns to the
Measure Mode of Operation.
The following section describes the types of
fault conditions and their applicability to
the TB84PH Advantage Series functionality.
FAULT CODES
Fault conditions are grouped into two
categories based on severity. Conditions that
result in degradation of analyzer performance
are reported as Problem Codes (PC), while
conditions that render the analyzer inoperable
are reported as Error Codes (EC).
Fault codes are reported in the secondary
display region in a first in, first out order
(i.e., the first detected fault condition is
the first condition that is displayed upon
interrogation). All active fault conditions
can be viewed at any time while in the Measure
Mode using the FAULT Info Smart Key. A
flashing Fault icon indicates a new fault
condition that has not been interrogated. A
non-flashing Fault icon indicates all fault
conditions have been interrogated but not
resolved. When all fault conditions are
resolved, the Fault icon and FAULT Info Smart
Key are de-energized.
Problem Codes
Problem Codes result from fault conditions
that impact the performance of the TB84PH
Advantage Series analyzer. In most cases,
these conditions can be resolved by the user
using standard practices.