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PRODUCT > DA-800-CO

DA-800-CO

DA-800

DA-800-CO

Introduction
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DA-800 detects various combustible, toxic and VOC gases leaked from industrial areas and display its density for gas producers, gas users, gas reservoirs, gas by-producers, and so on.
It is an indicator and transmitter type gas detector which converts detection signal into a standard current signal and transmit output to external devices.
Transmitter of DA-800 displays sensor¡¯s current and voltage signal by gas density on LCD, still converts into 4-20mA standard current output signal and transmit to external side.
4-20mA standard current output signal can be transmitted to various controller such as Gas leakage alarm system (GMS1000, GMS2000) PLC, DDC, MMR to build a integrated or individual gas monitoring system.
Features
Built-in micro processor realizes various artificial intelligent functions which result in more convenient, more accurate, and more efficient gas detection environment.
Built-in HD(high dissolution) A/D converter for accurate output signal.
LOW/HIGH 2 step relay contacts (AL1/AL2) enable to interlock with a various external devices like FAN.
4-20mA output enables stable and long distance (maximum 2.5km) signal transmission.
User programmable Menu offers to set user¡¯s own operating functions.
Specification
Specification
Gas sampling Suction type
Density display LCD Display - PPM, %LEL, % vol (set by user)
Input power DC 20 ~ 30V
Explosion proof Ex d IIB+H2 T6- Korea Gas Safety Corporation (KGS)
Target gas Combustible gas, Toxic gas, O2, VOC.
Detection principle NDIR (Nondispersive infrared)
Suction flow rate 0.2 l/min ~ 2.5 l/min
Suction distance Within 100m
Measurement range Please refer to the target gas list (page 16)
Accuracy ¡Â ¡¾2%/Full Scale
Response time Within 10 seconds, 90%/Full Scale
Sensor calibration AUTO-CALIBRATION with Magnetic Switch
User programming Calibration density & Measurement range
Wiring CVVS & CVVSB 1.5sq*3wire
External Output 4mA~20mA / Full scale - 2.5Km Transmission
Alarm output 2 Step (HIGH/LOW) Alarm RELAY CONTACT
Operation Temperature -20¡É~60¡É
Operation humidity 5 ~ 95%RH (Non-Condensing)
Wire conduit 1/2¡± or 3/4¡± PF,NPT
Housing material Cast Aluminum Alloy
Mounting Wall or Pipe Station
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