详情
| Detection method |
Natural diffusion type |
| Sensor life |
2 years (catalytic combustion type and electrochemical type) |
| Ambient temperature |
-10°C to +55°C |
| Relative humidity |
＜93% |
This G90 4-1 Multi-Gas Detector is a portable detection instrument that can be equipped with single or multiple gas sensors to detect various gases depending on the sensor types. The product can continuously monitor the concentration of gases in the ambient air, effectively ensuring the safety of workers and preventing damage to production equipment. This product is compact, easy to operate, convenient to carry and has good vibration resistance. lt uses high-resolution dot matrix LCD display technology, providing a more intuitive and clear display.
It's suitable for use in areas with explosive gas mixtures of zone 1 and 2 with categories ll A, ll B, ll C, and temperature groups T1 to T4: dust-tight enclosures are used for zone 21 and 22.
Technical Parameters
| Detection method |
Natural diffusion type |
| Sensor life |
2 years (catalytic combustion type and electrochemical type) |
| Ambient temperature |
-10°C to +55°C |
| Relative humidity |
＜93% |
| Explosion-proof method |
Intrinsically safe type |
| Explosion-proof mark |
Ex ia ⅡC T4 Ga; Ex ib ⅢC T130°C Db |
| Protection level |
IP65 |
| Explosion-proof certificate number |
CLEx24.1023 |
| Display method |
LCD liquid crystal display |
| Alarm method |
Three-level warning of sound, light and vibration |
| Power supply voltage |
DC 3.7V |
| Battery capacity |
2400mAh lithium-ion rechargeable battery |
| Charging time |
≤6h |
| Working time |
≥20 hours continuously (in non-alarm standby state) |
| Product weight |
Approximately 130g (excluding portable accessories) |
| Product size |
L 78mm×W 71.5mm×H 28mm |
| Upload interface |
Magnetic USB interface |
| Common Gas Parameter listing |
| Gas detected |
Measuring Range |
Optional Range |
Resolution Rat |
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 |
| oxynitride |
0-20PPm |
0-50、1000PPm |
0.1/1PPm |
≤15s |
| methanal |
0-20PPm |
0-50、100PPm |
1/0.1PPm |
≤15s |
| sulfur dioxide |
0-20PPm |
0-50、1000PPm |
0.1/1PPm |
≤15s |
| nitric oxide |
0-250PPm |
0-500、1000PPm |
1PPm |
≤15s |
| nitrogen dioxide |
0-20PPm |
0-50、1000PPm |
0.1/1PPm |
≤15s |
| phosphine |
0-20PPm |
0-20、100PPm |
0.1PPm |
≤15s |
| acrylonitrile |
0-100PPM |
0-100PPm |
0.1/1PPm |
≤15s |
| carbon dioxide |
0-5000PPm |
0-1%/5%/10%VOL(Infrared ) |
1PPM/0.01%VOL |
≤15s |
| hydrogen fluoride |
0-10PPm |
0-1、10、50、100PPM |
0.01/0.1PPm |
≤15s |
| Xylene/methylbenzene |
0-20PPm |
0-5、10、50、100PPm |
0.01/0.1PPm |
≤15s |
| oxirane |
0-100PPm |
0-100PPm |
1/0.1PPm |
≤15s |
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