ATI
Q45S/87 Portable Wet H
2
S Monitoring System
Part 5
– Operation
29
O&M Manual
– Rev-C
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
Hydrogen Sulfide level of the instrument in the user selected
display range. The user enters a ppm 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.
Note:
If the HOLD function is engaged before the Sim Output
function is engaged, the simulated output will remain the
same even when the ESC key is pressed. Disengage the
HOLD function to return to normal output. Also the Sim
function on Out#2 will only work if Out#2 is set to PPM.