Technical parameters :
product name |
Diffusion portable gas detection and alarm instrument |
Gas detection |
Combustible gases (EX), carbon monoxide (CO), oxygen (O2), hydrogen sulfide (H2S) in the air; ammonia (NH3), sulfur dioxide (SO2), hydrogen (H2), ozone (O3), etc. are poisonous and flammable gas |
Detection principle |
Depending on the specific gas to be detected, the principle of catalytic combustion and electrochemical principle are optional Principle of catalytic combustion: combustible gas, methane, hydrogen and other combustible gases Electrochemical principles: such as oxygen, carbon monoxide, hydrogen, ammonia, sulfur dioxide, hydrogen sulfide, ozone, etc. |
Measuring range |
Depending on the specific detection gas, 0-1ppm, 5ppm, 10ppm, 20ppm, 50ppm, 100ppm, 200ppm, 500ppm, 1000ppm, 2000ppm, 5000ppm, 10000ppm, 50000ppm, 100%Lel, 0-2%Vol, 5%Vol, 10 %Vol, 30%Vol optional |
resolution |
0.01 ppm or 0.001ppm (0~1ppm); 0.01ppm (0~100ppm); 0.1ppm (0~1000ppm); 1ppm (above 1000ppm); 0.1%Vol (0~100%Vol) or 0.01%Vol (0~ 100%Vol); 0.1%Lel (0~100%Lel); |
Support sensors |
Any combination of catalytic combustion sensor and electrochemical sensor, flexible configuration |
Combination |
Single, 2-in-1, 3-in-1, 4-in-1 optional (there must be a combustible gas sensor in 4-in-1) Sensors with more than two in one configuration can be turned on or off independently to avoid gas interference and prolong the service life of the sensor |
Sampling method |
Diffusion detection method |
Indication error |
≤±3% FS (higher accuracy requirements based on sensor performance) |
repeatability |
≤±1% |
zero drift |
≤±1% (FS/year) |
Response time |
≤30 seconds (T90) (higher requirements based on sensor performance) |
Recovery Time |
≤30 seconds (higher requirements based on sensor performance) |
size |
Length 66mm × height 120mm × width 30mm |
shell material |
High-strength and wear-resistant polycarbonate shell |
weight |
About 0.12kg-0.18kg |
Battery |
Rechargeable lithium battery 2000mAh, support mobile power supply and charging |
charger |
USB high current 5V 2.1A fast charger, compatible with universal USB mobile phone charger |
Alarm method |
Sound alarm 95 dB@30cm, vibration alarm, red LED alarm light |
Alarm point setting |
A1 alarm value, A2 alarm value; TWA alarm value, STEL alarm value can be set separately |
display screen |
2.3 inch TFT large color screen |
button |
4 key navigation key |
direct reading |
Measured value, data logging status, maximum value, minimum value, average value |
data record |
Automatically store data, the storage interval can be customized, and can continuously store 300,000 sets of data with date and time |
data download |
Support USB measurement data download; |
calibration |
Level 2 to level 4 target point calibration function, calibration calibration value can be set, one-key zero adjustment |
Explosion-proof grade |
Ex ib ⅡC T4 Gb (intrinsically safe) |
degree of protection |
IP65 |
operating mode |
Two operating modes, user mode and administrator mode, are available |
Operating temperature |
-20°C - 50°C |
Working humidity |
0-95% relative humidity (non-condensing) |
Executive standard |
GB 12358-2006, GB 3836.1-2010, GB 3836.4-2010 |
quality assurance |
One year warranty period, free maintenance during the warranty period. |