Specifications

DEVICES
Systems C.9 Devices 52-1002-5 9/01/2008
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
(H
2
S) electrochemical sensor. It will also accept any sensor/transmitter with a linear 4 to 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.
x Accepts 4-20 mA input from a variety of detection devices (PointWatch
®
, toxic sensors,
pressure, flow, etc.)
x One person non-intrusive calibration
x Alarm setpoints adjustable via network
x Alarm history stored in nonvolatile memory
x Calibration history stored in nonvolatile memory
x Active fault isolation
x Self diagnostics
x Detector can be close-coupled or separated
x 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
EQ300X
Controller
5 wire
5 wire
KEY:
= Required
= Choice Required
Model STB
Sensor
Termination and
Separation Box
=Option