■ Internal Pressure Explosion Proof Structure
■ Designed with constant voltage circuit for safe operation of overcurrent shutoff circuit detection sensor
■ Connects to an analog standard output (4~20mA) signal to DCS&PLC monitoring system
■ Detects flammable gas in real time through installation at industrial and explosion hazard area, Provides standard output of 4~20mA. DC and uses the device by connecting to various control units
ProductSpec (Model No) : QM-4700D(T),QM-4700D(O₂)
MeasuringGas : ToxicGas, Oxygen(O₂), CO, Cl₂, NH₃, SO₂, H₂S, NO, HF, NOX, SOX, etc
VOC, Benzene, Toluene, Xylene, etc.
MeasuringRange : 0~PPM – Toxic, 0~25%Vol – Oxygen (O₂), Adjustable Range
MeasuringMethod : Diffusion Type,Catalytic Combustion Cell Type, Semiconductor Type
MeasuringSignal : 4~20mA.DC
Response Time/Accuracy : Less than 20 seconds/ Less than ±3% / Full scale
OperatingPower : 24V.DC
ExplosionProof Permit (Approval) : Ex d II C T6 (KOSHA)
Sunghwa have over 20 years of original technology andhave developed our own brand and
manufactured products to meet global standards andtechnologies.
Sunghwa developed the first automatic sampling type sensor and monitoring system.
It is competitive enough abroad.
Sunghwa have developed a highly reliable gas system with a lot of know-how.
It has sensor-based technology, not mere assembly of manufacturing systems.