Clary Corporation DT1000R, Owner'S Manual

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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