Clary SP1250 LE - Manual (Page 10)

Page 10
OPERATION
nce the system has been properly installed, it is ready to operate. The following procedures will explain
how to start-up the system while plugged into rated electrical power and also how to start-up with no AC
power available.
Normal Operation on AC Start-Up:
•
Verify that the unit is plugged into properly rated electrical power.
•
Plug in External Batteries to DC input.(if used as an UPS)
• Position the System Switch to the ON position.
The system will quickly beep three times.
AC Input LED will be Green.
Battery LED should be on Green if batteries are connected.
You will now have 120VAC available at the AC outlet.
• To turn off the load, press and hold the Load Button until the AC Out LED turns off. Approx. 2 seconds.
Battery Operation after AC Start-Up:
•
Unplug the unit from the standard wall outlet.
The AC IN LED will turn Red.
An Audible beep will sound.
The Alarm LED will flash Red after approx. 10 seconds.
•
To silence the Audible alarm, quickly press and release either the Cold Start or Load button.
If the unit is allowed to operate further, it will time out and shut off completely. If power were to return, the unit will
automatically restart and return to the condition it was in at the moment it went into Battery Mode.
DC Start Operation (Cold Start)
If no utility power is available at the time backup power is required, the unit may be started to accomplish
abbreviated tasks. The limitations of the battery prevent extended operations at full load.
•
Position the System Switch to the ON position.
• Push and hold in the COLD START switch.
You now will have 120VAC available at the AC outlet.
Loading the System
The system can be loaded up to full rated load. If too much load is applied, the audible alarm will sound. If this
increased load is not removed within a few seconds, the unit will discontinue output operation and latch into an
alarm condition. The audible alarm will continue to sound and the ALARM LED will light. Reducing the load and
cycling the System Power Switch OFF then ON can reset the system.
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