The GIR-3000 infrared Gas detector has been developed to prevent accidents beforehand by detecting various
leaked gases generated in industry fields such as plants producing or using combustible gas, carbon monoxide,
carbon dioxide, gas storage place, manufacturing processes, etc.
The GIR-3000 infrared Gas detector is installed in areas with a risk of gas leakage to display measured values
with LCD, OLED installed in the detector by continuous detection of gas leakage, providing DC 4~20mA standard
output, Isolation RS-485 communication signal, HART communication, and Relay contact signal of gas Alarm. Also,
DC 4~20mA standard output can connect up to the maximum of 500m (upon using CVVS or CVVSB 1.5sq↑ Shield
Cable) in transmission distance of output signals of Gas detector and receiving unit while RS-485 communication
signal can be transmitted up to1,000m (upon using RS-485 exclusive line).
The GIR-3000’s body is made of aluminum alloy material in a structure of complete pressure-resistant explosion-
proof type(Ex d IIC T6), can be installed in the areas with a risk of leakage and explosion of all combustible gases,
displaying leakage situation of gas at the installed field by embedding LCD, OLED in the Gas detector. Inside structure
is comprised of liquid crystal unit displaying measured values, connector unit outputting measured values (DC
4~20mA) or Isolation RS-485 communication (Option) Signal, HART
communication signal, and Alarm Signal to outside, and 2 PCB Boards. Outside structure is comprised of Sensor
unit for detection of gas leakage and Cable lead-in unit (2ea). Calibration operation can be conducted outside of Gas
detector body by using Magnet-bar, making maintenance and repair operation convenient.
[Figure 1. GIR-3000 Overview]
Infrared Gas
Sensor Module
(GSA920)
Main Board
(Transmitter)
+24V DC
4-20mA Analog
Signal Output
Display Board
(User Interface)
Transmitter enclosure
Safety Power Supply Unit
(24VDC)
Safety Controller
(PLC or DCS)
GIR-3000 Gas Detector
Hazardous Area (Filed) Safe Area
2. Structure
1. Overview
GIR-3000
Instruction Manual
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