Xylem System 5000 User Manual - Manual (Page 102)

System Settings
The System Settings screen provides
control over system-wide settings and
operations of the System 5000
™
.
GENERAL SETUP
100
Site ID
Identifies the current system and
should be a unique label when used
in conjunction with other data loggers.
The Site ID appears on the Main Menu
and is a part of every Log File header
section.
Default Error String
Used whenever a sensor is unable to be
measured or an error occurs while
performing measurements, calculations,
etc. Generally the error string is a number representation (such as -99.99 or -9999), however a
string or phrase could be used instead (such as ERROR).
Measurement History
Defines the number of values each Task stores in its volatile history. These values are primarily
used in computing averages, max/min values, etc over spans of time. The Preserve checkbox
moves these values from volatile to non-volatile memory, preserving the values across power
failures and reboots.
Switched 12V
Defines the mode of the SW’D +12V port on the front panel of the System 5000
™
. The Switched
+12 volt excitation is provided to power sensors, and by default, this port is always on. There are
sensors that only need to be powered when being measured. To save power consumption, this
port can be programmed to turn on only during scanning by selecting the On For Scan radio
button. A warmup delay may be defined that is initiated as the first action when the system awakes
for a scan. Once the warmup delay has passed, the running of Tasks will proceed. The port can
be turned off completely by choosing Off. For even finer control, the Task-Selected option can
be selected, allowing the Switched 12V Output to be available via the Add Output screen for
individual Tasks.
Restore System Defaults
It may become necessary or desirable to restore the System 5000
™
to a functional initial state.
Any files stored within the internal memory as well as any installed Basic programs will not be
removed, but all Tasks and system settings will be removed and reset when the Restore button is
pressed. The system will reboot as part of the process.