DUO II / DUO II Pro series UPS – Instruction Manual
2010/03/19
www.ever.eu
13
ADDITIONAL REMARKS
WARNING! Inside the UPS there are no elements to be serviced by
the end user.
CUT-OUT
The UPS is equipped with a resettable circuit breaker. While in normal operation
mode of the UPS the breaker’s button should be pressed in. Triggering the cut-out
causes the above-mentioned button to pop out. After removing the condition that
triggered the cut-out, wait a few minutes before pressing the button back in. If the
cut-out is triggered again after the UPS is switched on, please contact technical
support.
UPS AND POWER GENERATORS
By design, the UPS tolerates mains voltage variations in the range of 190 ÷ 259V, as well as
frequency variations of ±5 Hz with relation to the nominal frequency of 50 Hz. Power
generators are characterised by variable frequency of the output voltage, which depends on
the changes in the load values. If the variations of frequency of the output voltage exceed
the allowed tolerance thresholds (ie. ±5Hz), the UPS will consider the parameters of the
input voltage to be incorrect and it will switch to battery operation mode.
USING THE TELECOMMUNICATION FILTER
In order to protect the (analogue) telephone line and connected telecommunication
devices such as modems or landline telephones, the DUO II UPSs are equipped with
an anti-overvoltage filter which safeguards the devices connected against
overvoltages in the telephone line. In order to properly utilise the built-in filter it is
necessary to connect the device to the filter socket marked as OUT with a cable with
RJ11 terminators, and connect the existing telephone line with a cable of the same
type to the other socket of the filter marked as IN.
WARNING! DUO II / DUO II Pro UPSs are designated as class C2. In
domestic environment they may interfere with reception of radio
waves so the user may be forced to implement additional
preventive measures.
Summary of Contents for Duo II 1000
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