4. Operation:
CAUTION:
Use a suitably rated plug and lead of the input power specification, and ensure a proper
connection to Earth at all times. Ensure the ac Input power is off before working with the unit.
First connect the standby battery to the leads provided (Red=Positive). If the unit does not maintain power,
the battery voltage is below usable threshold and should be replaced. When the battery power is connected,
the ‘Charge’ and ‘DC 12V’ lights indicators should illuminate. Close up the unit and switch on the ac input.
The M8561 will supply a constant voltage to the Output contacts as specified. In the event of a short circuit
to the output, the unit will drop the voltage until the fault is corrected, and immediately reset the voltage
thereafter. The same applies when exceeding the current specification.
The standby battery is monitored for a low voltage. The battery is disconnected by the unit in the event of
the voltage being below 10.8Vdc, and reconnected with the presence of the ac input power, which provides
the power needed to recharge the battery and keep it charged.
To test the working of the unit, switch off the ac input voltage and observe that it runs correctly from the
standby battery. Restore the ac input afterwards. When ac power is present the red ‘Power’ light illuminates.
5. Specifications:
Input power: ..................................................100-240Vac @ 50-60Hz
Output power:....................................................12Vdc 15% tolerance
Output current:................................................................5A Maximum
Standby battery:....................................................................12V 7AH
Current protection:...............................................................6A +/- 5%
Noise: ....................................................................................
≤
100mV
Efficiency: ..................................................................................
≥
85%
Charge voltage: ......................................................................13.8Vdc
Charge current: ...............................................................................1A
Battery undervoltage protection: ...............................................10Vdc
Enclosure dimensions: ..........................................265 x 195 x 75mm
Weight:........................................................................................1.5kg
