Detection gas |
Oxygen, toxic and harmful, combustible, carbon dioxide, dust |
Detection range |
%LEL 、%VOL、 PPM |
Detection error |
≤±5%FS |
Output signal |
4-20mA , RS485 |
Alarm point |
Two alarm, can be set by the user freely |
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QD7000 series multi-point monitoring dust gas or other gas detection alarm controller is used to detect the leakage content of dust particles in the air, and the leakage content of explosive dust gas.Once the dust is monitored by the alarm and reaches the preset alarm value, the exhaust or other peripheral actions can be driven, which can effectively prevent the occurrence of explosion, fire and poisoning accidents.
The bellow gases are available
Gas detected |
Measuring Range |
Optional Range |
Resolution Ratio |
Response Time |
LEL -combustible gas |
0-100%LEL |
0-100%VOL(Infrared or catalytic ) |
1%LEL/1%vol |
≤10s |
carbon monoxide |
0-1000PPm |
0-500/2000/5000PPm |
0.1/1PPm |
≤10s |
TVOC |
0-100PPM |
0-100PPM |
0.1PPm/1PPM |
≤15s |
hydrogen |
0-100%LEL |
0-1000PPM |
1%LEL/1PPM |
≤15s |
natural gas |
0-100%LEL |
0-100%LEL |
1%LEL |
≤10s |
Oxygen-O2 |
0-30%VOL |
0-30%、0-100%VOL |
0.1%vol |
≤10s |
ozone |
0-10PPm |
0-20、100PPm |
0.01PPm/0.1PPM |
≤15s |
hydrogen sulfide-H2S |
0-100PPm |
0-50、200、1000PPm |
1/0.1PPm |
≤10s |
Methane-CH4 |
0-100%LEL |
0-100%VOL |
1%LEL/1%vol |
≤10s |
fluorine |
0-10PM |
0-1、10PPM |
1/0.1PPm |
≤15s |
hydrogen chloride |
0-20PPm |
0-20/50PPm/100PPM |
0.01/0.1PPm |
≤15s |
Nitrogen-N2 |
0-30%VOL |
0-30%VOL、100%VOL |
0.1%LEL/1PPM |
≤10s |
hydrogen |
0-100%LEL |
0-1000PPm |
1%LEL/0.1PPm |
≤15s |
chlorine |
0-20PPm |
0-10、100PPm |
0.1PPm |
≤15s |
ammonia gas |
0-100PPm |
0-50、500、1000PPm |
1/0.1PPm |
≤15s |
Detection gas |
Oxygen, toxic and harmful, combustible, carbon dioxide, dust |
Detection range |
%LEL 、%VOL、 PPM |
Detection error |
≤±5%FS |
Output signal |
4-20mA , RS485 |
Alarm point |
Two alarm, can be set by the user freely |
preset value |
High and low alarm freedom Settings |
Display |
liquid crystal display |
output mode |
Passive contact switching, MAX 3.0a |
Network capacity |
4 ,8,16,32, 90 |
Working mode |
Natural diffusion, continuous work |
AC220V ±10% 50HZ |
|
power |
Monitor max 6W |
Shell material |
Cold steel plate |
Shell appearance |
|
<1500m |
|
Size |
390*290*100mm |
weight | 3000g |
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