The DASH2 has five independantly configurable alarms, these are configured by clicking on the 'Set up alarms' icon on the DASH2 configuration software:
These alarms are independant from any values displayed on the screen, as such there is no requirement for the values which are used for alarms to be displayed on the screen.
For an alarm to trigger the monitored value must pass from a valid condition to an alarm condition. This will trigger the alarm which will be displayed for the selected length of time. The channel name and the value which has triggered the alarm (with the configured number of decimal places) will be shown for either the set length of time or until cleared by a button press.