K-WANG



Core positioning and scope of application of the product
Core positioning: A multifunctional gas detection equipment designed specifically for industrial hazardous environments, capable of simultaneously covering the detection needs of flammable, toxic gases, and oxygen, while also accommodating new installation and renovation projects.
Applicable scenarios: Widely used in petrochemical (refineries, drilling platforms), power (boiler areas of power plants), environmental protection (sewage treatment plants), industrial manufacturing (chemical plants, food and beverage production), as well as hospital laboratories, boiler rooms, and other scenarios.
Core configuration and functional features
Specific parameters/functions of configuration category
Display function: Three color backlit LCD display screen, including numbers, bar charts, and icons; Green constant light=normal, yellow flashing=fault/warning, red flashing=alarm
Output and communication industry standard 4-20mA output (source/drain optional); MODBUS communication, supporting remote diagnosis and configuration
Two programmable alarm relays and one programmable fault relay
Operation method: Non invasive magnetic switch, can be configured without opening the cover (range, alarm point, electronic tag, etc.)
Automatically suppress output during security feature maintenance to avoid false alarms at the control end; IP66 protection level, including rain cover, suitable for harsh outdoor environments

Sensor technology and detection specifications
Sensor Classification and Technology
Catalytic combustion sensor: used for combustible gas detection, with anti poisoning characteristics, measuring range of 20.0-100.0% LEL, supporting 1 * -8 * star gas detection (default methane 0-100% LEL);
Infrared sensor: used for detecting hydrocarbon gases (0-100% LEL/% Vol) and CO ₂ (0-2% Vol), immune toxicity, and long lifespan;
Electrochemical Sensor (Surecell) ™ Technology: Used for toxic gas detection, covering H ₂ S, CO, H ₂;
Oxygen sensor: Fixed range 0-25% Vol, default calibration point 20.9% Vol.
Core Testing Specification Table
|Gas type | Sensor technology | Optional range | Default range | Calibration point range | Default calibration point|
|Combustible gas | Catalytic combustion | 20.0-100.0% LEL | 100% LEL | 25-75% FSD | 50% LEL|
|Methane | Infrared | 20.0-100.0% LEL | 100% LEL | 30-70% FSD | 50% LEL|
|CO ₂ | Infrared | - | 2% Vol | 30-70% FSD | 1% Vol|
|H ₂ S | Electrochemistry | 10.0-1000ppm | 50.0ppm | 30-70% FSD | 10ppm|
|CO | Electrochemistry | 100-1000ppm | 300ppm | 30-70% FSD | 100ppm|
|H ₂ | Electrochemistry | - | 1000ppm | 30-70% FSD | 500ppm|
|Oxygen | Dedicated Sensor | - | 25.0% Vol | - | 20.9% Vol|
Installation and Accessories
Installation method: Supports wall mounted installation (with built-in integrated installation board), pipeline installation (optional pipeline installation bracket required), compatible with horizontal or vertical pipelines.
Interface specifications: Provide 2 cable/conduit entrances, with specifications of M20 or three-quarters "NPT (determined by certification type).
core components
Standard configuration: rain cover, blank plug;
Optional: sunshade and shower cover, duct installation kit, air collection cone, remote sensor installation kit, calibration airflow housing, etc.
Product advantages
Reliability: Adopting anti poisoning/immune poisoning sensor technology, plug-in design facilitates quick replacement and reduces downtime;
Usability: Non invasive operation does not require a hot work permit, the three color display screen intuitively shows the status, and the output is automatically suppressed during maintenance to avoid false alarms;
Compatibility: Unified transmitter platform, supports automatic recognition of multiple types of sensors, adapts to different wiring topologies (source/drain output);
Cost effectiveness: Reduce spare parts inventory, lower training demand, MODBUS multi-point connection saves wiring costs.
KONG JIANG
Add: Jimei North Road, Jimei District, Xiamen, Fujian, China
Tell:+86-15305925923