USER MANUAL
www.qoltec.com
Inverter Pure Sine Wave
MODEL: 53880, 53881, 53882, 53883, 53884, 53885
Preface
Thanks for choosing our device.
Please read this manual for details before operation.
Product features
Inverter, UPS, AVR and charger function;
Toroidal transformer design, high efficiency low static loss, much more energy-saving than
old square transformer type design;
32-bit high speed CPU controlled, swift response speed, more accurate detection;
Colorful LEDs, friendly operation interface, display clearly shows device’s working status,
input and output voltage, loading status, battery status, etc;
Pure sine wave output, suitable for almost all of appliance;
High charging current;
Short switchover time, guarantees the connected appliances uninterruptible usage;
Ventilation fan is intelligent controlled and fan operation is based on the setting temperature
and working status.
Safety precautions
This series of product is designed for computer and internet devices and home appliance usage.
Not recommended in life support system and other special important equipment;
Avoid overloading, do not use the device beyond its maximum power capacity;
It will be a danger of high voltage in the device even all the switches are turned off, any
operation to move or open the device should be performed by authorized professional
personnel;
In case of fire, use dry powder type fire extinguisher, do not use liquid type fire extinguisher;
If the device works unusually, please switch off both power sources immediately, because any power
source can cause danger, and please contact with the distributor for professional advices.
Display, control and warning details
Normal working interface
Detail display
Buzzer working status description
Working status Description
When network voltage is abnormal, switch to the battery mode Beeping one time
Battery working is low, voltage or output overload Beeping every second
Protection or output abnormal Beeping hurriedly
Network voltage input is normal, AVR supply in output
Network voltage input is abnormal, battery through inverter supplies AC output
Temperature is too high, device cuts off output
Battery over voltage, short circuit, high MOSFET’s temperature
Network voltage input is over voltage
Network voltage input has low voltage
Loading exceeds device’s rated power
Loading bar is showing the loading situation
Battery bar is showing the battery capacity, while charging the bar will be flashing
Input voltage indication
Output voltage and frequency indication
Operational description
Name Component drawing Description
Output switch Pushing it for more than 2 seconds, switch on/off
the inverter or output
AC input cord
or terminal
Plug it or connect it to wall socket or network
voltage when battery charges or supply the output
through AVR
Mains switch
or
Connect to network voltage and when power is
normal, turn on this switch, device will work on
mains mode, charging the battery;
Turn off this switch, device will switch over to
battery mode
Output socket
or terminal
or
Appliance connects to this socket or terminal for
output
Note: The max. power for single socket is 2000W
If your appliances power is more than 2000W,
please connect to terminal
Ventilation fan
In the battery mode or while charging, when the
power transistor temperature is higher than 45oC,
fan will start working
Battery input pole
Red battery input cable for positive pole, black
battery input cable for negative pole; pay attention
to the battery voltage, it must follow the device
marking
Installation and operation
1. Installation
1.1 If you open the package and notice damage, please contact distributor immediately;
1.2 Do not install the device upside-down; do not exposed to direct sunlight or heat source; keep out
of reach from children; keep away from water, moisture, oil or grease and any flammable
substance;
1.3 For better ventilation, fan outlet and device ventilation hole should have at least 10 cm distance
from the wall or from the other adjacent equipment which does not produce the heat;
1.4 Make sure that network voltage and frequency match the device rating;
1.5 The device should be placed in the well-grounded conditions to ensure the safety;
2. Battery connection: Connect the red cable to the battery “+” pole and connect the black cable to the
battery “-“ pole, because device cannot work at the wrong connection.
or
Technical parameter table
Rated power 300W 500W 700W
Rated capacity 500VA 800VA 1000VA
Display status Working & loading & battery
Input voltage 140~275Vac
Input frequency 45-65 Hz
Output voltage 230Vac ± 1% for inverter; 230Vac ± 8% for regulator
Output frequency 50/60 Hz ± 0.5 Hz
Wave form Pure sine wave
Wave distortion ≤ 3%
Protection: overload, high temperature,
output high/low voltage, battery low voltage,
short circuit
Yes
Transfer time ≤ 4ms
Battery voltage 12V DC
Charge voltage 13.7V ± 0.5V
Low battery voltage limit 11V ± 0.5V
Battery low voltage protection 10.5V ± 0.5V
Charge current 10A
Cooling system Yes
Operating temperature 0-40oC
Relative humidity 10%~90%
Storage temperature -15 – 45oC
Size (mm) 230x145x180 230x145x180 337x145x180
Producer: ntec
Ul. Chorzowska 44B
44-100 Gliwice
Poland
www.qoltec.com
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