48
e700 User Manual
8.3. Ambient Air Entrainment Filter
The e700 entrains ambient air through the internal Venturi system
for ventilation when the O
2
concentration is set at 60%. This provides
not only decreased oxygen concentration but also increases the
ventilator operating time on an oxygen cylinder.
WARNING
Avoid particulate and/or gaseous pollutants in the ambient air!
The entrainment of pollutants into the ventilator may cause the
ventilator to malfunction or cause danger to the patient.
CAUTION
The ambient temperature shall be between 0
o
C
and 35
o
C during battery charge.
CAUTION
Always keep the ambient air entrainment port clear of obstructions.
Always replace the fi lter after use.
2. Turn unit ON and observe battery level (section 1 of the screen),
Refer to 7.2 Battery Status Indicator for exact battery charging
status. The battery shall be fully charged
Note:
• The Battery pack can be charged during operation.
• The Battery pack may be charged using external power supply
supplied with the unit or the optional DC to DC power supply.
• The Battery pack should be replaced after 200 charge/discharge
cycles or if the battery pack will not fully charge (as indicated on
the battery display on the ventilator) or if the ventilator doesn’t
run for more than 5 hours on a single charge.