Invacare MA85 Owners Manual - Page 21

5.1.1 Power Button 1. To turn the control unit on or off, press and release the Power button A. 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. 5.1.2 Pulse Button (MA80 Power Unit) 1. Press the Pulse button B to turn on Pulse mode and select one of four Pulse Times - 1, 3, 5, or 10 minutes. 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. Usage 5.1.3 Alternating Pressure Button (MA85 Power Unit) 1. Press the Alternating Pressure button C to select between one of four alternating pressure times. 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. 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. 1148138-I 21