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ENGLISH
4.4 Lock Phase Function
In AC mode, the UPS system automatically tracks AC phase and ensures that the
output wave form of the inverter is the same with AC voltage wave form. In this way, it
reduces the peak pulse and surge voltage to minimizes the interference and damage
to the equipment.
4.5 The Function of the Self-set Frequency
When the UPS is turned on for the first time, the acquiescence frequency is 50/60Hz;
when it is connected to AC, the frequency is automatically set to 50Hz or 60Hz in
accordance with AC.
5.0 Specifications
MODEL
EW3940 EW3941
650VA
720VA
EW3942
1000VA
EW3943
1200VA
Battery
12V/7 Ah x 1
12V/8 Ah x 1
12V/7 Ah x 2
Type of load
Computer, Display
Input voltage
100/110/120/220/230/240 V ± 25%
Input freq.
50/60 Hz ± 10%
Output voltage
100/110/120/220/230/240 V ± 10%
Output freq.
50/60 Hz ± 0,5-1% (in battery mode)
Backup time
8
ࡱ
20 mins (rated computer as load)
Transfer time
6 ms (650VA :
10 ms)
Short-circuit protection
Fuse in AC mode, limited output current in inverter
mode
Efficiency of power
> 80% in inverter mode
Temperature
0 °C
ࡱ
40 °C
Humiduty
10%
ࡱ
90%
Display
LED display: AC, charging, inverting
Summary of Contents for EW3940
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Page 13: ...EW3940 41 42 43 Interakt v Vonali UPS AVR funkci val...
Page 26: ...EW3940 41 42 43 Line Interactive UPS met AVR...
Page 39: ...EW3940 41 42 43 Line Interactive UPS con AVR...
Page 52: ...EW3940 41 42 43 Sai Interactivo con AVR...
Page 65: ...EW3940 41 42 43 UPS de linha interactive com AVR...
Page 77: ...EW3940 4142 43 Onduleur Interactif avec AVR...
Page 84: ...8 FRAN AIS 6 0 DEL UPS hors ligne Model EW3940 Model EW3941 EW3942 EW3943...
Page 91: ...EW3940 41 42 43 Line Interactive USV mit automatischem Spannungsregler...
Page 104: ...EW3940 41 42 43 Zasilacz UPS typu line interactive 650 VA z wtyczk Schuko...
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