Operating instructions

Page 9 of 34
POWER ON/OFF (All Sentry/ST Systems)
When the power cord is first inserted in the AC socket on the back cover,
the unit goes into Standby Mode and a green LED will blink every 3
seconds until the POWER ON/OFF button is pressed.
Press the POWER ON/OFF button to start system operation. The Main
Screen shown in Figure 2 will appear. However, the pressure reading will
vary from the figure below.
Figure 2: Main Screen
The second line shows three fields:
 The set pressure for Zones A and B
 The real-time pressure in Zone A
 The real-time pressure in Zone B.
Set pressure may be increased or decreased by pressing the Up or Down
keys, respectively.
MAXIMUM INFLATE (All Sentry/ST Systems)
This key activates or deactivates the MAXIMUM INFLATE mode. When
activated, the screen displays Max and all mattress cells are inflated to 50
mmHg to provide a firm, flat surface. This mode will last for approximately
20 minutes, unless turned off by pressing the MAX key again. The system
will then revert back to the previously set operating mode.
The mattress MAX pressure value is not adjustable.