Hamilton G5 - Page 310

10-28 624074/07
10 Responding to alarms
Oxygen +
air supplies
failed
High priority.
Input pressures of both
oxygen and air < 1.9 bar
(190 kPa/27 psi), or the input
flow dropped below 40 l/min.
The device continues to ventilate
as long as there is sufficient reser-
voir pressure to maintain gas
flow. If the reservoir pressure
drops below 150 cmH
2
O, the
ventilator enters the ambient
state. This alarm cannot be
silenced.
Provide alternative ventila-
tion.
Check air and oxygen sup-
plies, or provide alternative
compressed air or oxygen
sources to the ventilator
(VENTILAIR
II
medical air
compressor or oxygen cylin-
der).
Oxygen +
heliox sup-
plies failed
High priority.
Input pressures of both oxygen
and heliox < 1.9 bar (190 kPa/
27 psi), or the input flow
dropped below 40 l/min. The
device continues to ventilate as
long as there is sufficient reser-
voir pressure to maintain gas
flow. If the reservoir pressure
drops below 150 cmH2O, the
ventilator enters the ambient
state. This alarm cannot be
silenced.
Provide alternative ventila-
tion. Check heliox and oxy-
gen supplies, or provide
alternative compressed air
or oxygen sources to the
ventilator (VENTILAIRII med-
ical air compressor or oxy-
gen cylinder).
Oxygen
supply
failed
High priority.
Input pressure of oxygen
< 1.9 bar (190 kPa/28 psi), or the
input flow dropped below 40 l/
min. The ventilator continues to
function at an oxygen concentra-
tion of 21% if the internal pres-
sure can be maintained. Under
these conditions, the low Oxygen
concentration alarm is disabled.
Observe the patient.
Inspect the oxygen supply.
Provide an alternative
source of oxygen, if neces-
sary.
Table 10-2. Alarms and other messages
Alarm Definition Complete these actions