Troubleshooting
XST
USERS
MANUAL
Page
8
Xtreme
Power
Conversion®
(XPC)
Corporation
Condition
Visual
Indicator
Alarm
No
LED
display
on
the
front
UPS
panel
Low
battery
Charge
the
UPS
at
least
8
hours
Battery
fault
Replace
the
battery
with
the
same
type
of
battery
The
UPS
is
not
turned
on
Press
the
Power
Switch
on
the
front
of
the
UPS
Alarm
continuously
sounds
when
the
AC
input
is
normal
The
UPS
is
overloaded
Remove
some
of
the
load
from
the
output
of
the
UPS
UPS
fault
Return
the
unit
for
service
Alarm
sounds
every
2
seconds
when
the
AC
input
is
normal
Battery
defect
Replace
the
battery
with
the
same
type
of
battery
Charging
circuit
is
damaged
Return
the
unit
for
service
The
UPS
is
overloaded
Remove
some
of
the
load
from
the
output
of
the
UPS
Battery
voltage
is
too
low
Charge
the
UPS
at
least
8
hours
Battery
defect
Replace
the
battery
with
the
same
type
of
battery
The
AC
input
is
normal
but
the
blue
LED
is
flashing
Power
cord
is
loose
Reconnect
the
input
power
cord
properly
When
power
fails,
backup
time
is
shorter
than
expected
Specifications
Xtreme
Power
Conversion®
(XPC)
Corporation
Page
9
XST
USERS
MANUAL
Model
XST
‐
400
XST
‐
600
XST
‐
800
Capacity
400VA/240W
600VA/360W
800VA/480W
Input
Voltage
120
VAC
Range
90
‐
145
VAC
Frequency
60
Hz
Output
Voltage
(AC
mode)
same
as
input
Voltage
(bat
mode)
120
VAC
±
10%
Transfer
Time
2
‐
6
ms
(typical)
Waveform
Simulated
Sine
Wave
Battery
Type
&
Qty
(1)
12V/4.5AH
(1)
12V/7AH
(1)
12V/9AH
Charging
Time
8
hours
to
90%
capacity
Protection
Overcharge,
discharge,
short
circuit,
and
thermal
Physical
W
x
D
x
H
Dimensions
3.2
x
8.9
x
8.1
in
(in
vertical
stand
position)
Weight
4.8
lbs
5.9
lbs
6.8
lbs
Input
Cord
5
ft
5
‐
15P
Environmental
Humidity
0
‐
90%
Temperature
0
‐
40
C
(32
‐
104
F)
Altitude
11,500
ft
(3500
m)
above
sea
level
Warranty
Two
years
on
electronics
&
battery
Runtime
Up
to
38
min
Up
to
68
min
Up
to
87
min
