Phone: (714) 970-2304 Fax: (714) 970-6171
Service: (714) 970-2304 (m-f, 8:00 – 5:00), after hours (951) 840-0811
Web Page:
www.DSPManufacturing.com
Email:
6
SECTION 1- OPERATION
1-1 INTRODUCTION
The ETERNALIGHT UPS (uninterruptible power system) from DSPM provides an
exceptional level of load protection and monitoring capabilities. The critical load is
provided with conditioned, regulated, computer- grade power at all times. Both the
voltage level and frequency are controlled at all times to the load.
When the input power is lost to the UPS, such as during a power outage, the UPS
automatically draws power from its internal battery supply. The critical load receives
only clean sine wave power at all times. There are no disturbances or power
interruptions on the output when the UPS transfers to battery operation. Transfers to
and from battery operations are “No Break” transfers. The internal maintenance-free
batteries provide a few minutes to hours (depending upon model) of backup power.
Upon restoration of input power, the UPS automatically resumes normal operation. Also
the UPS immediately begins to recharge the batteries.
The ETERNALIGHT 1 is a dual conversion single phase UPS available in output ratings
of 2 to 80 kVA. The UPS is U.L. listed under UL1778 and/or UL924. The UPS is
available with input voltages of 120, 208, 240 and 277 VAC; and output voltages of 277,
240, 208, and 120 VAC. This information is provided on the nameplate located on the
inside of the front door.
