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PRODUCT > DA-800

PRODUCT

DA-800

DA-800

DA-800

Introduction
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 ≤ ±2%/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℃~60℃
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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