Det-Tronics Eagle Quantum EQ2200DCU User Manual

APPLICATION
The Eagle 2000 Digital Communication Unit (DCU)
offers a convenient and economical means of obtain-
ing addressable 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
Eagle communication gateway. All circuitry is housed
in a single explosion-proof/watertight 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 Eagle DCU is available for use with Det-Tronics’
combustible gas, oxygen and toxic gas sensor/trans-
mitters. The DCU can also be used with a wide vari-
ety of “third party” 4 to 20 ma analog instruments.
FEATURES
• Field addressable
• Unique patented fault isolation
• Utilizes state-of-the-art communication technology
• Pass through communication circuitry on power loss
• Ten bit signal resolution capability
• Two alarm setpoints
• Non-volatile memory for logging of alarm and cali-
bration events
• Non-intrusive one person calibration
• LED for calibration, fault and alarm status annuncia-
tion
• EMI hardened
• Screw terminal connectors.
SPECIFICATIONS
INPUT VOLTAGE—
24 vdc. Operating range is 18 to 32 vdc.
INPUTS—
4 to 20 ma analog signal, with an input impedance of
200 ohms, 10 bit resolution.
OUTPUTS—
Digital communication, transformer isolated (78.5
kbaud). Calibrated 0 to 4095 digital corresponds to 0
to full scale.
POWER CONSUMPTION—
DCU with toxic gas sensor/transmitter:
95 ma maximum.
DCU with transmitter and combustible gas sensor:
180 ma maximum during normal operation, 500 ma
during startup.
TEMPERATURE RANGE—
Operating: –40°F to +167°F (–40°C to +75°C).
Storage: –67°F to +185°F (–55°C to +85°C).
SPECIFICATION DATA
Eagle Quantum
™
Digital Communication Unit
EQ2200DCU
©Detector Electronics Corporation 2001 10/01 90-1118-01
DET-TRONICS
®

Det-Tronics Eagle Quantum EQ2200DCU Specifications

General

Brand	Det-Tronics
Model	Eagle Quantum EQ2200DCU
Category	Conference System
Language	English

Summary

APPLICATION

FEATURES

SPECIFICATIONS

Input Voltage Specifications

Details the acceptable input voltage range for the DCU.

Input Signal Specifications

Specifies the analog input signal, impedance, and resolution.

Output Signal Specifications

Describes the digital communication output and calibration.

Power Consumption Details

Outlines the maximum power draw for different sensor configurations.

Temperature Range Limits

Specifies the operating and storage temperature limits.

CERTIFICATION

FM Certification Details

Details FM approval classes and groups for hazardous locations.

CSA Certification Details

Details CSA approval classes and hazardous location ratings.

CENELEC Certification Details

Details CENELEC hazardous area certifications including EEx ratings.

CE Compliance

Indicates conformity to relevant European Union norms.

PRODUCT DESCRIPTION

Detector Enclosure Design

Describes the NEMA 4X explosion-proof aluminum enclosure for hazardous areas.

Status Indicator LEDs

Explains the function of the green, red, and amber status indicator LEDs.

Event Logging Capability

Details the logging of the last eight alarms and calibration events.

CALIBRATION LOGGING

Calibration Data Recording

Records sensor calibration levels, time, and date in FIFO format.

FAULT TOLERANT NETWORKING

Network Fault Isolation

Explains the patented fault isolation technique and automatic network reconfiguration.

DEVICE ADDRESSABILITY

Setting Node Addresses

Describes setting unique device addresses using DIP switches on the circuit board.

REED SWITCH FOR CALIBRATION

Non-Intrusive Calibration Method

Enables sensor calibration without opening the enclosure using a magnetic reed switch.

INSTALLATION AND WIRING

Digital Highway Wiring

Details wiring requirements for the digital communication loop and power.

H2S/O2 SENSOR CONFIGURATION

Optimal Mounting Locations

Guidance on selecting optimal detector mounting locations for accessibility.

DCU Component Assembly

Procedure for attaching terminal wiring and communication modules to the DCU.

POINTWATCH INTEGRATION

PointWatch Wiring Color Code

Explains the wiring color code for connecting PointWatch IR gas detectors.

Sensor Separation for PointWatch

Guidelines for separating PointWatch sensors from the DCU using shielded cable.

COMBUSTIBLE GAS SENSOR CONFIGURATION

Combustible Gas Sensor Mounting

Guidance on orienting junction boxes with the sensor pointing down.

DCUEX Transmitter Board Orientation

Importance of correct transmitter board orientation for LON communication.

DCUEX ASSEMBLY AND SENSOR SEPARATION

DCUEX Wiring Procedure

Procedure for connecting external wiring to the DCUEX terminal wiring board.

Combustible Gas Separation Methods

Details two methods for separating combustible gas sensors from the DCUEX.

ORDERING AND SUPPORT

DCU Ordering Specifications

Details required specifications like enclosure material and certification for ordering.

Technical Support Contact

Provides contact information for sales, customer service, and technical assistance.