ATI
PQ45P pH System
Part 5
– Operation
26
O&M Manual
Rev-B (7/15)
Faults are not stored; therefore, they are immediately removed if power
is cycled. If the problem causing the faults still exists, however, faults will
be displayed again after power is re-applied and a period of time elapses
during which the diagnostic system re-detects them.
The exception
to this rule is the calibration failure. When a calibration fails, no corrupt
data is stored. Therefore, the system continues to function normally on
the data that was present before the calibration was attempted.
After 30 minutes or if power to the transmitter is cycled, the failure for
calibration will be cleared until calibration is attempted again. If the
problem still exists, the calibration failure will re-occur. Press ENTER to
initiate view of the highest priority failure. The display will automatically
return to normal after a few seconds.
Sim Out
The Sim Out function allows the user to simulate the pH level of the
instrument to check the output settings. The user enters a pH value
directly onto the screen, and the output responds as if it were actually
receiving the signal from the sensor.
This allows the user to check the function of attached monitoring
equipment during set-up or troubleshooting. Escaping this screen
returns the unit to normal operation. Press ENTER to initiate the user
entry mode, and the right-most digit of the value will flash. Use arrow
keys to modify desired value.
The starting display value will be the last read value of the input. The
output will be under control of the SIM screen until the ESC key is
pressed.
Glass Diags
This function allows the user to shut off the glass breakage/leak
diagnostics. It does not affect the state of the remaining system
diagnostics. This capability is provided to eliminate nuisance trips in
electrically noisy applications, such as some plating operations.
Set Default
The Set Default function allows the user to return the instrument back to
factory default data for all user settings or for just the calibration default.
It is intended to be used as a last resort troubleshooting procedure. All
user settings or the calibration settings are returned to the original factory
values. Hidden factory calibration data remains unchanged. Press
ENTER to initiate user entry mode and select either
CAL
or
ALL
with the
UP arrow key. The default CAL routine will reset the zero offset to 0.0
nA and reset the slope to 100%. The default ALL routine will reset all
program variables to factory default and should be used with care since it
will change any user settings that were programmed in the field.
