Invacare MA85 - Manual (Page 20)

4 OPERATION
Invacare®MA80 Series Mattresses 20 Part No 1148138
Power Button
1. To turn the control unit on or off, press and release the Power button ( ).
Pulse Button (MA80 Power Unit)
1. Press the Pulse button ( ) to turn on Pulse mode and select one of four Pulse Times - 1, 3, 5 or 10 minutes.
Alternating Pressure Button (MA85 Power Unit)
1. Press the Alternating Pressure button ( ) to select one of four alternating pressure modes.
 Once the unit is plugged in, an AMBER LED on the control unit is lit indicating that the system is in STAND BY mode. Once
the Power button is pressed and released, a GREEN LED illuminates indicating that the control unit is on.
If the power comes on after a power outage, the control unit will go through its system initialization routine for a few
seconds and then resume the desired function.
 The pulse times are 1, 3, 5 or 10 minutes. The pulse times indicate the time between each low pulse. For example, if 5
minutes is selected, all the air cushions in the mattress will inflate for 5 minutes (the selected time) to the selected comfort
setting and then drop 20% pressure for 20 seconds.
 The alternating pressure times indicate the frequency of deflation or inflation of half of the air cushions (even or odd
numbered). For example, 10 minutes is selected. For example, 10 minutes is selected. In this example, the even numbered
air cushions in the mattress will deflate, while the odd numbered cushions remain at constant pressure. When 10 minutes
has elapsed, the even numbered air cushions will inflate while the odd numbered cushions remain at constant pressure.
When 10 minutes has elapsed again, the odd numbered air cushions deflate while the even numbered cushions remain at
constant pressure. The air cushions continue to inflate or deflate like this as long as an alternating pressure time has been
selected. At all times, half of the air cushions remain at a constant pressure when an alternating pressure time has been
selected.