Xylem iRIS 150 GPRS DATALOGGERS - Manual (Page 23)

17 – IRIS 150 V1.11 User Guide
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5.3.5 Alarm Cfg (Level 5)
The alarm set-up menu is the place to configure each sensor alarm.
* Alarm 1 Cfg
0 Exit
1 Enable [No]
2 Trigger [ 0.00]
3 Reset [ 0.00]
4 Duration [0min]
>
Option 0
Select this option to return to the Alarm Selection menu.
Option 1
When this option is selected you will be prompted to enable/disable the alarm.
> Enable (0:No 1:Yes)=
Enter a value of 0 to disable the alarm. Enter a value of 1 to enable it.
Option 2
When this option is selected you will be prompted to enter a trigger level for the alarm.
> Trigger=
Enter a value in engineering units that you want to use as the trigger point for the alarm. When the scaled
value exceeds this limit the alarm will become active.
Option 3
When this option is selected you will be prompted to enter a reset level for the alarm.
> Reset=
Enter a value in engineering units that you want to use as the reset point for the alarm. When the scaled
value falls below this limit the alarm will be deactivated. If the reset level is set to a value greater than the
trigger level then the alarm is reverse acting. This mode is normally used for low voltage or low water level
type alarms.
Option 4
When this option is selected you will be prompted to enter a time in seconds to delay alarm activation. This
can be used to implement hysteresis for analogue data sources. If the data source is one of the internal
counters then this time is used to totalise individual sample values. If the total over the given alarm duration
is above the trigger level then an alarm is generated. Typically this feature is used for rainfall alarms.
> Duration (min)=
5.3.6 Date/Time Cfg (Level 2)
The Date/Time Cfg menu is where the various time functions are configured. These include date, time of
day, date format, time zone offset and clock trim.
* Date / Time 1 Cfg
0 Exit
1 Date [04 Jun 2008]
2 Time [14:23:49]
3 Date Format [0: dd Mmm yyyy]