Specifications

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DevicesC.17Systems 8/01/201152-1002-8.1
EQ2200DCU Series Digital Communication Unit
EQ2200DCU Series Digital Communication Unit (Spec Sheet: 90-1118) is approved for
use with a variety of Det-Tronics’ sensors including PointWatch IR gas detector and hydrogen
sulfide (H2S) electrochemical sensor (C706x Series). It will also accept any sensor/transmitter
with a linear 4-20 mA output signal and allows for one person non-intrusive calibration. The
DCU digitizes the analog signal and transmits the value to the controller.
• Compliance to ANSI/ISA-12.13.01 and CSA 22.2 #154, for combustible gas
• Accepts 4-20 mA input from a variety of detection devices (PointWatch, toxic sensors, pressure,
flow, etc.)
• One person non-intrusive calibration
• Alarm setpoints adjustable via network
• Alarm history stored in nonvolatile memory
• Calibration history stored in nonvolatile memory
• Active fault isolation
• Self diagnostics
• Detector can be close-coupled or separated
• Supports sensor separation
DETECTORS
CONTROLLERS
Model PIRTB
Sensor
Termination and
Separation Box
2 or 3 wire
4-20 mA
Analog Device
EQ22XXDCU
Digital
Communication
Unit
PIR9400
PointWatch
Infrared
Hydrocarbon
Detector
EQ30XX
Controller
5 wire
5 wire
KEY:
= Required
= Choice Required
Model STB
Sensor
Termination and
Separation Box
=Option