Figure 3-3: Example of Unacknowledged Alarm
Each screen contains:
• The name of the parameter responsible for the alarm.
• The value of this parameter.
• The date and time at which the alarm condition was detected.
The unacknowledged alarm screens are always displayed in priority. When an
alarm condition occurs, the Main Display mode is immediately replaced by the
Unacknowledged Alarms mode.
An alarm is acknowledged by pressing the Ackn. context key while the
corresponding message is displayed. When acknowledged, the message is removed.
The Hydran M2-X returns to the Main Display mode when all alarms have been
acknowledged.
Acknowledged alarms that are still active are shown in a screen of the Main
Display mode (see Section 3.1.2.3). When an alarm condition disappears, the
corresponding message is removed from the Main Display mode screen.
3.1.2.2 Menu Navigation Mode
In the Menu Navigation mode, the keypad is used to access the Main Menu’s
options, parameters and commands. The Main Menu gives access to all Hydran M2-
X’s parameters and commands To access the Main Menu (from the Main Display
mode), press the Main Menu context key.
Each option of the Main Menu is described in detail in Section 3.3 to Section 3.6.
Note: The Hydran M2-X automatically returns to the Main Display mode if the keypad
is not used for five minutes.
3.1.2.3 Main Display Mode
This mode is displayed automatically if there are no unacknowledged alarms and
the keypad is unused for more than five minutes. To select this mode manually from
the Main Menu, press the Esc key until screen 1 (described below) of the Main Display
mode is reached.
In the Main Display mode, the Hydran M2-X displays four screens of messages:
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