Operating Data
Gas supply
Supply gas O2, medical air, or mixtures
O2 concentration ±3 % of set value when
operated with blender
84 12 411
Requirements for the medical grade from wall
supply gas pipeline, from cylinders, or
from air compressors
Supply pressure 38 to 84 psi (2.7 to 6.0 bar)
at 80 L/min.
Max press. difference
between O2 and Air when
operated with blender: 20 psi (1.2 bar)
Gas connections
pursuant ISO 5359, Annex A
(DISS)
Gas consumption
Ventilator for internal pneumatic
control circuits
approximately 1.0 L/min
about 2.5 L/min base flow in
any ventilation mode (TI:TE 1:1)
Blender approximately 12 L/min
O2-Air mixture
Nebulizer port approximately 3 L/min
at 72 psi (5 bar) supply
pressure
Typical times of operation
with minute ventilation
of 10 L/min without blender:
E-cylinder approximately 46 minutes
WARNING !
Always use medical grade oxygen or air that is
dry and free from dust and oil. Contaminated gas
may cause ventilator malfunction.
WARNING !
MicroVent is not intended to be used with gas
mixtures of nitrous oxide
Alarms
Supply press. low Alarm is activated when
supply pressure falls below
approx. 22 psi (1.5 bar).
Paw high Adjusted with knob »Pmax«,
alarm is activated when set
value of Pmax is reached.
Paw low Alarm is activated when no air-
way pressure difference of at
least 5 cmH2O has been
reached within two ventilator
breaths in CMV or SIMV or if
pressure falls below 3 cmH2O in
CPAP mode.
PEEP high Alarm is activated when airway
pressure don´t falls below
22 cmH2O during expiration.
Leakage Alarm is activated when the ex-
piratory minute ventilation is less
than 60 % of inspiratory minute
ventilation. The »Leakage« alarm
is not functional in CPAP mode.
Apnea Only functional in CPAP mode.
Alarm is activated when no
breaths have been detected for
15 seconds.
Check settings Alarm is activated when an in-
spiratory flow outside the range
of 10 to 80 L/min would result
from the set combination of VT,
Rate, and Tinsp. It is not a mes-
sage about an operator error
and does not need to be reset.
Alarms are generated as visual and audi-
ble alarms.The audible portion
of an alarm is muted after a con-
dition has been corrected. The
message displayed must be re-
set (to acknowledge).
Self test automatically in fixed time intervals
during operation and standby.
Audible alarm loudness 75 dB (A) in 1 m distance
high rate Alarm is activated when the
breathing rate exeeds 30/min
during 3 minutes.
This alarm can switched
ON/OFF in the Customer
Service Mode.
Alarms
Operating Data
Technical Data
57
Operating Instructions MicroVent
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