The ALARM DELAY determines the length of time the alarm is
delayed after an alarm condition has been detected. This delay
affects the visual alarm, audible alarm, and relay outputs. An
ALARM DELAY prevents nuisance alarms from staff opening
and closing doors, etc.
The MUTE TIMEOUT determines the length of time the audible
alarm is silenced after the MUTE key is pressed. This delay
temporarily mutes the audible alarm.
NOTE: If the PresSura controller is in alarm when MUTE
TIMEOUT expires, the audible alarm turns on. When
the PresSura controller returns to the safe range, the
MUTE TIMEOUT is canceled. If the room goes back
into an alarm condition, the MUTE key must be
pressed again to mute the audible alarm.
The ACCESS CODE item selects whether an access code
(pass code) is required to enter the menu. The ACCESS CODE
item prevents unauthorized access to a menu. If the ACCESS
CODE is ON a code is required before the menu can be
entered. Conversely if the ACCESS CODE is OFF no code is
required to enter the menu.
The END OF MENU item informs you that the end of a menu
has been reached. You can either scroll back up the menu to
make changes, or press the SELECT or MENU key to exit out
of the menu.
ALARM CONSTRAINTS
There are a number of constraints built into the software that prevent users from programming conflicting alarm information. These are as
follows:
1. Room mode. The positive pressure alarms are only active when positive pressure is enabled. Negative pressure alarms
are only active when negative pressure is enabled. In no isolation mode all alarms are turned off.
2. The PresSura controller is programmed not to allow the pressure alarms to be programmed within 40 ft/min (±0.00028 “
H
2
O at 0.001 “H
2
O) of each other.
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