Maruson PRO-400A LCD User Manual

1

Inspection

Remove the UPS from its packaging and inspect it
for damage that may have occurred during shipping.
If any damage is discovered, repack the unit and
return it to the place of purchase.
2

Placement

Install the UPS unit in any protected environment
that provides adequate airflow around the unit, and
is free from excessive dust, corrosive fumes and
conductive contaminants. Do not operate your UPS
in an environment where the ambient temperature
or humidity is high. On the other hand, place the
UPS unit away from monitor at least 20cm to avoid
interference.
3

Charging

This unit is shipped from the factory with its internal
Battery fully charged. however, some energy may be
lost during shipping so the battery should be
recharged before using it. Plug the unit into an
appropriate power supply and allow the UPS to
charge fully by leaving it plugged in for 8 hours.
4

Computer Connection

Connect one computer-related device into each of
the power receptacles supplied on the back of the
UPS (maximum of three devices).
Front Panel—
1. LCD Back-Light
2. Power "ON/OFF" Switch
LONG 202-719-4978
5

Modem/Phoneline Connection

Plug incoming internet line into the "In" socket at the
back of the UPS. Use one more Internet line cable
and plug one end of the Internet line cable to the
"Out" socket at the back of the UPS. Plug the other
end to the modem input socket as shown.
6

Turn On/Off

To turn on the UPS unit, press the power switch lightly.
To turn off the UPS unit, press the power switch again
(When Swith ON，The LED lighting.).
7

LCD Display Specification

The LED will always turns on when UPS works,
including in off charging mode and fault mode.
When LCD start to work, it will display all information
for 3s
1).When in normal mode, it will display as below.
2).When in AVR mode, it will display as below. And the
mark will flicker every 1second.

UPS System Description

Back Panel—
1. USB Port
1
2. Modem/Phone Line Surge Protection
3. Battery Backup Outlets
2
4. Surge protected outlets
5. AC input
6. Circuit breakerz
*
3).When in battery mode, it will display as below.
And the mark
Note: If I/P-V<40V，input voltage will display "000"
4).When in off charging mode, it will display as below.
Note: the output voltage always is displayed as "000"
in off charging mode.
5).When in fault mode, it will display as below. "FAULT"
character and the reason of fault only.
Note: the fault code will be showed in fault mode.
6).Load level definition:
Load LEVEL
7).Battery capacity definition:
8).When over load, the mark
1second.
9).When battery low, the mark
1second.
2
3
IEC×3 for 220/230/240V
will flicker every 1second.
Load bar Indication
0%~25%
25%~50%
50%~75%
75%~100%
Battery voltage
≤11V
Battery voltage
11V≤ ≤11.5V
Battery voltage
11.5V≤ ≤12.5V
Battery voltage
≥12.5V
will flicker every
will flicker every
1
O U T N I
5
6
4