Newport HT50 - Page 39

SECTION 3
SERHT50NA A0808 3-15
▲ Paw (High Pressure) Alarm
(user adjustable)
Audible Alarm: Intermittent beep
Visual Alarm: ▲Paw indicator blinks red
Message Window: HIGH PRESSURE
The High ▲Paw Alarm is activated when airway pressure (Paw)
reaches the ▲Paw alarm limit setting. Any breath in progress
immediately cycles to e
xhalation. The alarm violation is cancelled
when Paw falls below the Paw alarm limit setting and at least one
second has elapsed since the alarm was activated.
▼ Paw (Low Pressure) Alarm
(user adjustable)
Audible Alarm: Intermittent beep
Visual Alarm: ▼Paw indicator blinks red
Message Window: LOW PRESSURE
The Low ▼Paw Alarm is activated when airwa
y pressure remains
below the ▼
Paw alarm limit setting for two consecutive mandatory
breaths. The alarm violation is cancelled when one mandatory
breath is delivered without a ▼Pa
w alarm violation.
NOTE: The Low ▼Paw Alarm does not function in SPONT mode.
The ▼Paw alarm limit does not apply to spontaneous breaths in
SIMV mode.
High ▲ V
•
I
and Low ▼ V
•
I
Alarm Control and Display
(inspiratory minute volume)
Range: V
•
I
0 to 99.0 L/min
High ▲ V
•
I
Alarm 1.1 to 50.0 L/min
Low ▼
V
•
I
Alarm 0.1 to 49.0 L/min
This window displays the inspiratory minute volume (in liters) and
is automatically updated every 10 seconds. The V
•
I
window always
displays the delivered minute volume, except when the user is in
the process of setting either the High or Low V
•
I
alarm limit.
To adjust the High or Low V
•
I
alarm limit, press the ▲or ▼ V
•
I
button. The value in the adjacent display window will blink. Use
the ▲Up/▼Down controls to adjust the displayed alarm limit
v
alue. The new limit can be retained by (1) pressing the selected
button again to accept the alarm setting, (2) selecting another
parameter for adjustment, or (3) allowing five seconds to elapse
without adjustment.
NOTE: The high inspiratory minute volume alarm limit is limited
to 1 > the low alar
m limit setting. The low alarm limit is limited to 1
< the high alarm limit setting.