Intelligent gas alarm controller: QD6000 typeMulti point monitoring combustible gas detection alarm controllerUsed to detect the content of flammable gases or liquid vapors within the lower explosive limit in the air, it can be equipped with multiple detection probes and centrally controlled at multiple points. This system uses a microprocessor as the control unit and high-performance catalytic gas sensors as the detection sensors, with high sensitivity and fast response speed. When the concentration of flammable gases in the environment reaches or exceeds the preset alarm value, the controller immediately issues an audible and visual alarm and drives exhaust or other peripheral devices to prevent explosions and fire accidents, thereby ensuring life. This system can be widely used in factories, oil depots, liquefied gas stations, gas stations, gas stations, paint spraying rooms and other places that require fire and explosion prevention for safety detection and alarm.
Measurement range:% LEL,% VOL, PPM
Accuracy: ± 3% F.S
Sensor signal: 4-20mA or RS3082
◆ Alarm point: two-level alarm, can be freely set by the user
◆ Preset value: (EX) Low report: 20% LEL High report: 50% LEL
◆ Indication method: LCD displays concentration data, LED indicates alarm or fault status
Output mode: switch quantity MAX 3.0A
◆ Working method: on-site fixed installation, wall mounted
◆ Networking capacity: 4 channels, 8 channels, and 16 channels
◆ Natural diffusion, continuous operation
Working environment: Temperature -20-50 ℃, humidity<95% RH
Working voltage: AC220V ± 10% 50HZ
Power: Monitor Max 6W Sensor Max 1W
Requirements for the connection line between the system and external (gas) detectors:
Standard bus 2-wire connection method, with 2 single core wires with a diameter of ≥ 2.5mm and a length of ≤ 1000m
Standard 3-wire split connection method, with 3 single core wires with a diameter of ≥ 1.5mm and a length of ≤ 1000m
Standard bus 4-wire connection method, with 4 single core wires with a diameter of ≥ 1.5mm and a length of ≤ 1000m.
◆ Appearance size: (320 × 250 × 90) mm
◆ Whole machine weight: 3.2kg
|
Tested gas
|
measurement range
|
Optional range
|
resolution
|
response time
|
|
Flammable EX
|
0-100%LEL
|
0-100% VOL (infrared)
|
1%LEL/1%vol
|
≤ 15 seconds
|
|
Carbon monoxide CO
|
0-1000PPm
|
0-500/2000/5000PPm
|
0.1/1PPm
|
≤ 15 seconds
|
|
TVOC
|
0-100PPM
|
0-100PPM
|
0.1PPm/1PPM
|
≤ 20 seconds
|
|
hydrogen
|
0-100%LEL
|
0-1000PPM
|
1%LEL/1PPM
|
≤ 20 seconds
|
|
natural gas
|
0-100%LEL
|
0-100%LEL
|
1%LEL
|
≤ 15 seconds
|
|
Oxygen O2
|
0-30%VOL
|
0-30%、0-100%VOL
|
0.1%vol
|
≤ 15 seconds
|
|
Ozone O3
|
0-10PPm
|
0-20、100PPm
|
0.01PPm/0.1PPM
|
≤ 20 seconds
|
|
Hydrogen sulfide H2S
|
0-100PPm
|
0-50、200、1000PPm
|
1/0.1PPm
|
≤ 15 seconds
|
|
methane
|
0-100%LEL
|
0-100%VOL
|
1%LEL/1%vol
|
≤ 15 seconds
|
|
Fluorine gas
|
0-10PM
|
0-1、10PPM
|
1/0.1PPm
|
≤ 20 seconds
|
|
hydrogen chloride
|
0-20PPm
|
0-20/50PPm/100PPM
|
0.01/0.1PPm
|
≤ 20 seconds
|
|
Nitrogen N2
|
0-30%VOL
|
0-30%VOL、100%VOL
|
0.1%LEL/1PPM
|
≤ 15 seconds
|
|
Hydrogen H2
|
0-100%LEL
|
0-1000PPm
|
1%LEL/0.1PPm
|
≤ 20 seconds
|
|
Chlorine gas CL2
|
0-20PPm
|
0-10、100PPm
|
0.1PPm
|
≤ 20 seconds
|
|
Ammonia NH3
|
0-100PPm
|
0-50、500、1000PPm
|
1/0.1PPm
|
≤ 20 seconds
|
|
nitrogen oxides
|
0-20PPm
|
0-50、1000PPm
|
0.1/1PPm
|
≤ 20 seconds
|
|
formaldehyde
|
0-20PPm
|
0-50、100PPm
|
1/0.1PPm
|
≤ 20 seconds
|
|
Sulfur dioxide SO2
|
0-20PPm
|
0-50、1000PPm
|
0.1/1PPm
|
≤ 20 seconds
|
|
Nitric oxide NO
|
0-250PPm
|
0-500、1000PPm
|
1PPm
|
≤ 20 seconds
|
|
Nitrogen dioxide NO2
|
0-20PPm
|
0-50、1000PPm
|
0.1/1PPm
|
≤ 20 seconds
|
|
phosphine
|
0-20PPm
|
0-20、100PPm
|
0.1PPm
|
≤ 20 seconds
|
|
acrylonitrile
|
0-100PPM
|
0-100PPm
|
0.1/1PPm
|
≤ 20 seconds
|
|
carbon dioxide
|
0-5000PPm
|
0-1%/5%/10% VOL (infrared)
|
1PPM/0.01%VOL
|
≤ 20 seconds
|
|
hydrogen fluoride
|
0-10PPm
|
0-1、10、50、100PPM
|
0.01/0.1PPm
|
≤ 20 seconds
|
|
Xylene, toluene
|
0-20PPm
|
0-5、10、50、100PPm
|
0.01/0.1PPm
|
≤ 20 seconds
|
|
Ethylene oxide ETO
|
0-100PPm
|
0-100PPm
|
1/0.1PPm
|
≤ 20 seconds
|
|
Please contact the company for unlisted gases
|
