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SECTION 2—OPERATION
Part No 1148136 17 MA50 Series
Mode Button (Max Inflate/Low Air Loss)
NOTE: The Mode button is on the MA55 system only.
1. Press the Mode button ( ) to select the Max Inflate mode or the Low Air Loss
mode.
• Max Inflate Mode - In this mode, the mattress inflates rapidly to maximum
firmness (pressurized to 35 ± 6 mmHg). A series of beeps sound every three
minutes as a reminder that the Max Inflate mode is active. After 45 minutes, the
Max Inflate mode deactivates and the control unit defaults to the previous setting.
NOTE: It takes 20-45 minutes for the mattress to inflate fully (inflation time depends on size
of mattress).
NOTE: It is recommended that Max Inflate setting be used during patient ingress/egress,
patient wound care, patient turning or patient cleaning.
• Low Air Loss Mode - In this mode, the mattress goes into on-demand low air loss
relief mode.
2. Press the Mode button to manually disengage Max Inflate or Low Air Loss mode.
NOTE: This will deactivate the Max Inflate and Low Air Loss LEDs.
Lock Button
1. Press the Lock button ( ) to lock out all control unit functions, including the On
button, to prevent any tampering with the settings. Press the button for approximately
3-5 seconds for the Lock LED to activate.
NOTE: The Lock LED illuminates when in this mode.
Alarm Silence Button
1. Press the Alarm Silence button ( ) to silence the alarm that sounds in the event
of power failure or when the hose is disconnected from the control unit.
NOTE: The Alarm LED illuminates when in this mode.
Power Fail LED
In the event of power outage, an alarm sounds and Power Fail LED flashes AMBER. The
control unit has internal memory and retains the previous settings during the power
outage.
NOTE: During a power outage, the mattress retains the air as long as the mattress is connected to
the control unit.