China Sulfur Dioxide SO2 Gas Detector Sensor 20 ppm Electrochemical Air Quality Monitoring Toxic Gas 2-Electrodes Portable Miniature, Find details about China Membrapor, So2 Sensor from Sulfur Dioxide SO2 Gas Detector Sensor 20 ppm Electrochemical Air Quality Monitoring Toxic Gas 2-Electrodes Portable Miniature
Nominal Range | 0 - 20 ppm |
Maximum Overload | 100 ppm |
Expected Operation Life | 2 years in air |
Output Signal | 450 ± 80 nA/ppm |
Resolution | 0.5 ppm |
Temperature Range | - 20 °C to 50 °C |
Pressure Range | Atmospheric±10% |
Pressure Coefficient | No data |
T90 Response Time | < 30 sec |
Relative Humidity Range | 15 % to 90 % R.H. non-condensing |
Typical Baseline Range (pure air, 20°C) | -0.3 to +0.3 ppm |
Maximum Zero Shift (+20°C to +40°C) | N.D. |
Long Term Output Drift | < 2% signal loss/month |
Recommended Load Resistor | 10 Ohm |
Bias Voltage | Not required |
Repeatability | < 2 % of signal |
Output Linearity | Linear |
Weight | ~ 5.4 g |
Position Sensitivity | None |
Storage Life | Six months in container |
Recommended Storage Temperature | 5 °C - 20 °C |
Warranty Period | 12 months from date of dispatch |
Module type | GM-I2(3)-M/C/S-**-****/G/P/F/FL |
Detected gas | Toxic gas |
Detecting principle | Electrochemistry |
Sampling | Diffusing pump flange thread |
Responding time | 30s~40s(of the sensor) |
Module accuracy | ≤±3%FS(actual concentration, higher accuracy depends on specified sensors) |
Module repeatability | ≤±2% FS |
Module linear error | ≤±2% FS |
Module zero temperature drift | ≤±2% (FS/year) |
Module operating temperature | -40~80°C |
Module humidity | 0-95%RH(non-condensation) |
Sensor operating temperature | -20°C~50°C |
Sensor humidity | 0-90%RH(non-condensation) |
Signal output | TTL/4-20mA /RS485 (two or three wire) |
Transmitting distance | 1000 meters(RS485) |
Operating voltage | DC 12-36V |
Maximum power | ≤0.8W |
Size | 80*48mm |
Explosion proof | Intrinsic safe |
Connection cable | RVVP3 x 1.5mm² |