SAMUN system

gas_detector_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.

Specification

Gas samplingSuction type
Density displayLCD Display - PPM, %LEL, % vol (set by user)
Input powerDC 20 ~ 30V
Explosion proofEx d IIB+H2 T6- Korea Gas Safety Corporation (KGS)
Target gasCombustible gas, Toxic gas, O2, VOC.
Detection principleNDIR (Nondispersive infrared)
Suction flow rate0.2 l/min ~ 2.5 l/min
Suction distanceWithin 100m
Measurment rangePlease refer to the target gas list
Accuracy≤ ±2%/Full Scale
Response timeWithin 10 seconds, 90%/Full Scale
Sensor calibrationAUTO-CALIBRATION with Magnetic Switch
User programmingCalibration density & Measurement range
WiringCVVS & CVVSB 1.5sq*3wire
External Output4mA~20mA / Full scale - 2.5Km Transmission
Alarm output2 Step (HIGH/LOW) Alarm RELAY CONTACT
Operation Temperature-20℃~60℃
Operation humidity5 ~ 95%RH (Non-Condensing)
Wire conduit1/2” or 3/4” PF,NPT
Housing materialCast Aluminum Alloy
MountingWall or Pipe Station

Downlaod

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