Maruson SUR-1218UPS, User Manual

-9

This unit is shipped from the factory with its internal battery fully charged, however,
some charge may be lost during shipping and the battery should be recharged prior 
to use. Plug the unit into an appropriate power supply and allow the UPS to charge fully 
by leaving it plugged in for at least 10 hours.

2 beeps every
8 seconds

STATUS

YELLOW LED

GREEN LED

RED LED

BUZZER

Backup

Mode

Battery normal
Load normal

No load (For green mode 
function only)

Over load (will shut down 
at 120% of full load)

Over Temperature

O/P short circuit

Low battery 

Over battery voltage
(For external battery)

Inphase lock (AC good,
PLL working)

2 flashes every 
4 seconds

One flash every
4 seconds

2 flashes every 
4 seconds

32 flashes every 
other 2 seconds

32 flashes every 
other 2 seconds

4 flashes every 
second

8 flashes every 
second

OFF

4 flashes 
every second

One beep every
8 seconds

Continuous beep

Depending on
load situation

32 beeps every
other 2 seconds

4 beeps every
second

8 beeps every
second

STATUS

YELLOW LED

GREEN LED

RED LED

BUZZER

AC 

normal 

mode

Battery full

Battery charge 70%~90%

Battery charge 50%~70%

Battery charge 30%~50%

Battery charge 0%~30%

Over load(shut off at 120% of full load)

OFF

OFF

OFF

OFF

OFF

OFF

Continuous ON

One blink every 8 seconds

One blink every 4 seconds

One blink every 2 seconds

One blink every second

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Continuous
Beep

★

STATUS

YELLOW LED

GREEN LED

RED LED

BUZZER

OFF

mode

AC I/P disconnected 
(UPS OFF completely)

AC I/P normal (Batt. In charging)

UPS timer is set (Through RS232)

OFF

OFF

1 flash every
2 seconds

1 flash every
2 seconds

1 flash every 
2 seconds

OFF

OFF

OFF

Note” ”

:

The

buzzer

will

keep

continuous

beeping

until

the

control

button

is

pushed

for

one

second.

★

OFF

OFF

OFF

OFF

OFF

OFF

OFF

ON

OFF

OFF