increase pressure under the buttocks). Press the therapy adjust button at the left end of the row to cycle between the settings. The selected therapy mode setting's indicator will illuminate.

Front panel fourth row

Panel lock button: The panel lock protects the panel set- tings from accidental change. Press to lock; press for three seconds to unlock. When the panel remains untouched for three minutes, it locks automatically. When the panel is locked, the panel lock indicator will illuminate.

Power button (ON/OFF): The power button turns power to the mattress system ON or OFF. Press to turn ON; press to turn OFF. When power is on, the power (ON/OFF) indicator will illuminate. When power is turned OFF, mattress system will slowly deflate. Note: Main power switch on side of pump must be ON in order for the panel power button to function.

Alarm mute button: The alarm mute button temporarily suspends the LED indicator and buzzer when either the low-pressure alarm or power failure alarm is activated.

Should the problem not be resolved within five minutes, the alarm will resume.

Low pressure indicator: The low pressure indicator illumi- nates, and the alarm sounds, when pressure level is lower than the selected pressure. If the low pressure indicator persistently illuminates inappropriately:

1.Check to ensure all connections are properly and se- curely connected per installation instructions.

2.Check for any leakage (tubes or connecting hoses). If necessary, contact your Graham-Field equipment pro- vider to replace any damaged tubes or hoses.

3.If problem persists, contact your Graham-Field equip- ment provider.

Power failure indicator: The power failure indicator illu- minates, and the alarm sounds, when there is a power failure. Depress the alarm mute button to disable both alarm and LED.

760000-INS-LAB-RevA08

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Graham Field 760000-INS-LAB-RevA08 user manual Front panel fourth row