15
If the battery is stored for a long period and it has been discharged, it needs a
extended period to be charged.
2.5 Gas supply
There are two kinds of gas supply: Air and oxygen
（
O
2
）
. It can be connected to the central
supply system, and the required rated pressure range is 0.28
～
0.6Mpa. There is a filter
and an one-way valve installed in each pipeline. The pressure is released to the rated
pressure range 0.28
～
0.6Mpa by the pressure regulator. When using cylinder for gas
supply, the output pressure will be regulated to 0.28
～
0.6Mpa by the pressure regulator.
The ventilator system will monitor the pressure of the gas supply automatically, when the
pressure reduces to affect the ventilation, it will generate an alarm to notify the users.
2.6 System switch
The ventilator has a specially designed system switch protective shield, which can avoid
touching or impacting the switch accidentally to turn off the ventilator.
2.7 User screen
Refer to the
Chapter 5 Operations and settings
.
2.8 Modes of ventilation
The ventilator offers varieties ventilation modes and assist-control modes, and it meets
the patients’ demand and brings you great convenience.
2.8.1 VCV mode
VCV (Volume control ventilation). In the VCV mode, during the breathing period, the
ventilator provides the mandatory ventilation for the patients with constant flowrate and
pre-set tidal volume. At the same time, in expiration phase, it monitors the pressure status
or the flowrate in the airway (Pressure trigger or Flow trigger), when the trigger condition
meets, it will provide the patient with a mandatory ventilation of the same settings.
