1, according to the use of classification 1 portable hazardous gas detection alarm instrument The sensor, measuring circuit, display, alarm, rechargeable batteries, air pump, etc. assembled in a shell, become a one-piece instrument, compact and lightweight, easy to carry, pump suction Samples can be detected anytime, anywhere.
• Pocket instruments are a type of portable instrument. Generally, there is no suction pump diffusion sampling, dry battery power supply, and active volume.
2 Fixed harmful gas detection and alarm instrument This type of instrument is fixed on the site, continuously detects the corresponding harmful gas (vapor), automatic alarm of harmful gas overrun, and some can automatically control the exhaust fan. Fixed instruments are divided into two kinds of integrated and split.
• Integrated fixed hazardous gas detection and alarm instrument: same as portable instruments, the difference is installed on site, 220V AC power supply, continuous automatic detection alarm, mostly diffuse sampling.
• Separate fixed hazardous gas detection and alarm instrument: The sensor and signal transmission circuit are assembled in an explosion-proof housing, commonly known as the probe, installed at the site (dangerous place); the second part includes data processing, secondary display, alarm control and power supply. Assembled into a controller, commonly known as secondary instrument, installed in the control room (safety place). Probe diffusion sampling detection, secondary instrument display alarm.
2, according to the measured object and the principle of the sensor classification 1 combustible gas detection alarm (referred to as explosion tester, an instrument to detect a variety of combustible gases)
• Catalytically combustible gas detection alarms to detect various combustible gases or vapors.
• Infrared flammable gas detection alarm detector detects various combustible gases (according to filter technology).
• Semiconductor type combustible gas detection alarm device detects a variety of combustible gases.
• Thermal conductivity type flammable gas detection alarm device to detect hydrogen gas with large difference between thermal conductivity and air.
2 Toxic gas detection alarm (abbreviated as drug meter, an instrument to detect a toxic gas)
• Electrochemical toxic gas detection alarm system for detecting CO, H2S, NO, NO2, CL2, HCN, NH3, PH3 and various toxic organic compounds.
• Photoionization toxic gas detection alarm system for detecting organic and inorganic compounds with ionization potentials less than 11.7 eV.
• Infrared toxic gas detection alarm, detecting CO, CO2, etc.
• Semiconductor toxic gas detection alarms, detection of CO, etc.
• Pocket instruments are a type of portable instrument. Generally, there is no suction pump diffusion sampling, dry battery power supply, and active volume.
2 Fixed harmful gas detection and alarm instrument This type of instrument is fixed on the site, continuously detects the corresponding harmful gas (vapor), automatic alarm of harmful gas overrun, and some can automatically control the exhaust fan. Fixed instruments are divided into two kinds of integrated and split.
• Integrated fixed hazardous gas detection and alarm instrument: same as portable instruments, the difference is installed on site, 220V AC power supply, continuous automatic detection alarm, mostly diffuse sampling.
• Separate fixed hazardous gas detection and alarm instrument: The sensor and signal transmission circuit are assembled in an explosion-proof housing, commonly known as the probe, installed at the site (dangerous place); the second part includes data processing, secondary display, alarm control and power supply. Assembled into a controller, commonly known as secondary instrument, installed in the control room (safety place). Probe diffusion sampling detection, secondary instrument display alarm.
2, according to the measured object and the principle of the sensor classification 1 combustible gas detection alarm (referred to as explosion tester, an instrument to detect a variety of combustible gases)
• Catalytically combustible gas detection alarms to detect various combustible gases or vapors.
• Infrared flammable gas detection alarm detector detects various combustible gases (according to filter technology).
• Semiconductor type combustible gas detection alarm device detects a variety of combustible gases.
• Thermal conductivity type flammable gas detection alarm device to detect hydrogen gas with large difference between thermal conductivity and air.
2 Toxic gas detection alarm (abbreviated as drug meter, an instrument to detect a toxic gas)
• Electrochemical toxic gas detection alarm system for detecting CO, H2S, NO, NO2, CL2, HCN, NH3, PH3 and various toxic organic compounds.
• Photoionization toxic gas detection alarm system for detecting organic and inorganic compounds with ionization potentials less than 11.7 eV.
• Infrared toxic gas detection alarm, detecting CO, CO2, etc.
• Semiconductor toxic gas detection alarms, detection of CO, etc.
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