32 Chapter 3: Description of device
Symbol Meaning
Menu lock active
The home and escape keys are deactivated and the MFK functions are restricted.
It is not possible to access the menu.
Internal battery charging
100%
Power level of the internal battery
75%
green: about 60% ... 100%
45%
yellow: about 0% ... 20%
15%
red: about 20% ... 60%
Please note: If no percentage is shown, the battery requires maintenance (see
page 83).
Replace internal battery
• Defective battery or
• Battery capacity too low or
• Battery incompatible
Mains operation active
1
Explanation of symbols on the pressure bar
Symbol Meaning
Trigger lock “On” setting
Trigger lock triggered
Spontaneous breathing detected
The device has detected spontaneous breathing by the patient. This triggered
the inspiration trigger. The symbol will remain visible during inspiration and will
shut off with the beginning of the expiration.
Safety cycle active
The device is operating in PSV mode. The patient is not breathing spontaneously
and is ventilated at the set frequency.
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