SECTION 3
SERHT50NA A0808 3-11
Manual Inflation
Range: 0 to 3.0 sec
Pressing this button delivers an operator initiated Manual Inflation.
Pressing the Manual Inflation button will not initiate an inflation if
the patient is currently in the inspiratory phase of a breath or if
airway pressure is > 5 cmH
2
O (mbar) above the set PEEP/CPAP
level. Manual Inflation delivers the set flow rate (in Volume
Control) or the set target pressure (in Pressure Control), but
inspiratory time is controlled by the user.
During Manual Inflation, the breath is terminated if (1) the Manual
Inflation button is released, or (2) the ▲Paw (High Pressure)
alar
m is violated or (3) three seconds have elapsed.
NOTE: Manual Inflation is only available in A/CMV and SIMV modes.
NOTE: Manual Inflation may be prematurely cycled off in the first
se
veral breaths in Pressure Control when the initial flow has not yet
been optimized.
Humidifier On Button
(HT50-H, HT50-HB only)
Range: 19ºC to 39ºC
This touch button activates the b
uilt-in humidifier. Pressing this button
displays the set target temperature in the adjacent window. While the
display is blinking, use the ▲Up/▼Down controls to adjust the
target temper
ature. When temperature adjustment is complete
and (1) five seconds have elapsed without touching the control,
(2) the Humidifier On button is pressed again, or (3) another
parameter is selected for adjustment, the display stops blinking
and the measured temperature is displayed. While the humidifier is
On, the target temperature can be readjusted at any time by
pressing the Humidifier On button and using the ▲Up/▼Down
controls
.
NOTE: Preheating the humidifier for 30 minutes prior to beginning
v
entilation will improve the heating performance of the humidifier.
During ventilation (On condition) the displayed temperature is the
measured temperature at the patient connector. In the Setting
condition, the displayed temperature is the measured temperature
at the humidifier bottle outlet.
To turn the humidifier Off, press and hold the Humidifier On button
for three seconds. See pg 5-11 for more details.
NOTE: The measured proximal temperature may be different
from the set target temperature due to the environmental
temper
ature, minute volume, patient temperature, etc.
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