SECTION 2—OPERATION
Part No 1148139
19
MA90 Series
Lock/Alarm Silence Button
1. Press
the
Lock/Alarm
Silence
button
(
)
to
select
one
of
the
following
modes:
• Lock
Mode
‐
Pressing
this
button
locks
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
mode
‐
Pressing
this
button
silences
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
the
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
MA90Z
mattress
retains
the
air
as
long
as
the
mattress
is
connected
to
the
control
unit.
Low Pressure LED
In
the
event
that
the
mattress
hose
disconnects,
an
alarm
sounds
and
Low
Pressure
LED
flashes
AMBER.
Once
the
low
pressure
problem
is
fixed,
the
control
unit
resumes
operation
in
the
previously
set
mode.
Displaying the Total Run Time (MA95Z)
Every
time
the
control
unit
is
plugged
in,
the
LCD
screen
displays
the
Run
Time
in
hours
and
minutes.
For
example,
2,584
hours
and
25
minutes
displays
as
002584
Hours
000025
Minutes.
To
display
the
Run
Time
during
use:
1. Ensure
the
control
unit
is
plugged
in
and
the
Standby
LED
is
On.
2. Press
and
hold
the
Soft
and
Firm
Buttons
at
the
same
time.
3. The
LCD
screen
displays
the
Run
Time
as
described
above.
Powering Up the System
NOTE:
For
this
procedure,
refer
to
FIGURE 2.4.
1. Turn
on
the
power
to
the
system
by
pressing
the
Power
button
on
the
control
unit.
NOTE:
Once
the
button
is
released,
a
GREEN
LED
illuminates
when
the
unit
is
on.
