AirSep MN171-1 User Manual
Page 18
 
MN171-1 Rev. A 02/14
4.1 Start-Up
A one-second, audible alarm sounds to indicate start-up. The green and red LED’s on the control 
panel will alternate on/off for (10) seconds. During this (10) seconds both feed and waste valves 
are open. After the (10) second start up is complete the green LED will be illuminated indicating 
that the Focus is ready to be used. 
4.2 Battery Status
To check the level of charge of the battery, press the button on
Focus battery keypad. The battery gauge / indicator(s) LEDs next
the button illuminate from 25-100% to indicate the level (capacity) 
of the internal battery. At less than 25% capacity, the 25% LED blinks. 
4.3 Low Battery
Focus unit indicators: As the battery power approaches a low level, the amber light on the 
Focus unit will flash on for ½ second with a 5-second pause and simultaneously, a ½ second 
alarm sounds with a 5-second pause. Following the battery warning indicators, if action is not 
taken, the unit will shut down. This will be indicated when the amber light flashes 2 times with a 
5-second pause and simultaneously, a ½ second alarm sounds 2 times with a 5 second pause.
Battery indicator: The green light indicator on the battery gauge light
flashes.
When this occurs, the patient is instructed to, connect Focus to a DC power outlet or to an AC 
power outlet, or change to another source of oxygen
immediately.
The level of battery charge is
indicated by the battery gauge/indicator(s). You can also check the SOC (state of charge) at any 
time by depressing the button. 
When the unit is connected to AC or DC power outlet, you may simultaneously charge the Focus 
battery supplied with the unit while running the unit 
4.4 Discharged Battery
§
Battery shutdown indicator on Focus control panel: When the battery is fully discharged, the
unit shuts down. Before this occurs the amber light flashes
2 times with a 5-second pause and
simultaneously, a ½ second alarm sounds 2 times with a 5 second pause.
§
Battery indicator: The green light indicator on the battery gauge light
flashes.
When this occurs, the patient is instructed to, connect Focus to a DC power outlet or to an 
AC power outlet, or change to another source of oxygen
immediately.
The level of
battery charge is indicated by the battery gauge/indicator(s). You can also check the SOC 
(state of charge) at any time by depressing the button. 
When the unit is connected to AC or DC power outlet, you may simultaneously charge 
the Focus battery supplied with the unit while running the unit 
4.5 Cannula Disconnect (No inspiration detected)
When Focus is operating but does not sense breathing for 15 consecutive minutes, a constant 
alarm sounds, and the amber alarm light illuminates simultaneously. If this occurs, check the 
connection from the cannula to the Focus unit, make sure that the nasal cannula is positioned 
properly on your face, and ensure that you are breathing through your nose. (Your physician may 
recommend the use of a chin strap if needed.) If the alarm condition continues, change to another 
source of oxygen as available, and contact your Equipment Provider