Digital Communication Unit0 pages

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SPECIFICATION DATA Eagle Quantum

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PremierDigital Communication UnitEQ2200DCU

APPLICATION

The Digital Communication Unit (DCU) offers a conve-nient and economical means of obtaining address-
able gas detection. The DCU digitizes a 4 to 20 ma
analog signal from a sensor/transmitter and transmits
the value as a process variable to the controller. All
circuitry is housed in a single explosion-proof/water-
tight enclosure for location at the area of detection.The DCU is provided in various configurations,depending on the type of gas to be detected. All
DCUs contain a communication module and a termi-
nal wiring board. DCUs for detecting combustible
gas also contain a transmitter board. The DCU is available for use with Det-Tronics com-bustible gas, oxygen and toxic gas sensor/transmit-
ters. The DCU can also be used with a wide variety
of ғthird party 4 to 20 ma analog instruments. >

SPECIFICATIONS

24 vdc. Operating range is 18 to 32 vdc. INPUT VOLTAGEԗ INPUTS 4 to 20 ma analog signal, with an input impedance of
200 ohms, 10 bit resolution. >

FEATURES

OUTPUTSח Digital communication, transformer isolated (78.5
kbaud). Calibrated 0 to 4095 digital corresponds to 0
to full scale. POWER CONSUMPTIONDCU with toxic gas sensor/transmitter: 95 ma maximum. וField addressableUnique patented fault isolation
ՕUtilizes state-of-the-art communication technology
Pass through communication circuitry on power loss
ՕTen bit signal resolution capability
Two alarm setpoints
ՕNon-volatile memory for logging of alarm and cali-bration eventsNon-intrusive one person calibration
ՕLED for calibration, fault and alarm status annuncia-tionEMI hardened
ՕPluggable screw terminal connectors
Compatible with Eagle Quantum Premier and EagleQuantum systems. DCU with transmitter and catalytic combustible gassensor: 180 ma maximum during normal operation, 500 ma
during startup. TEMPERATURE RANGE՗ Operating:40ְF to +167F (Ж40C to +75аC).
Storage:67ְF to +185F (Ж55C to +85аC). >
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Detector Electronics Corporation 2003 8/0390-1118 size="-1">