Clary DT Series ET - Manual (Page 4)

T H E C O N T I N U O U S P O W E R C O M P A N Y
Page 4
TECHNICAL DESCRIPTION
he Digital Technology-Extreme Temperature
(DTR(ET) Series Continuous Power System
(CPS) is a revolutionary new concept in total power
protection and management. The DTR(ET) Series
is a microprocessor-based UPS that now allows the
user to set most of the control feature parameters.
By directly linking a personal computer to the
DTR(ET) Series RS232 port, frequency settings and
operation, alarm signals, load switching, fan
operation, etc. can all be programmed to meet
specific application requirements.
The DTR(ET) Series in a true on-line, continuous
power UPS. In the tradition of Clary products, the
DTR(ET) Series generates the same high quality
and proven reliability to provide the best power
protection available for today’s critical applications.
In keeping with state-of-the-art design, the power
electronics are completely governed by an on-board
microprocessor. Given the powerful memory
capability of today’s microcontrollers, this
microprocessor has evolved the UPS into an all-in-
one complete power distribution and monitoring
center. Not only is your critical load insured of the
most reliable and constant power available, but the
user may now continuously track status of the
supply components that keep the entire system
operational. Production downtime can now be
virtually eliminated by knowing exactly what patterns
the supply utility power maintains and by knowing
exactly the condition and life expectancy of the
battery reserve.
Reference the block diagram for a simplified
explanation of the system’s operation. The AC utility
source is connected to the power and micro
electronics when the input switch is closed. The
input line is filtered, power factor corrected and
rectified for enhanced performance without
disturbing other equipment that may share the same
utility circuit.
The microprocessor controls an Inverter Generator
that produces a low harmonic, AC sinewave for
continuous power applications.
When the input AC utility line fails, the battery circuit
within this system takes over to ensure continuous
power. Only until properly rated power is returned,
does the microprocessor reconnect the input source
back into the system.
The microprocessor is directly tied to an external
RS232 connector port. This allows the user to
monitor and even set some of the operating
parameters. With a simple link to a personal
computer using the DTR(ET) UPS software
program, you can actually view, on your monitor, the
event history of the power distribution system with
the
DTR(ET) Series unit as the central hub. More
sophisticated users may implement the optional
SNMP package to accomplish full Network Power
Management. T