Electrochemical Ozone O3 Gas Detector Sensor Toxic Ambient Gas Monitoring

Gas Module Introduction
FAD gas module with two/three wire TTL/0-20mA/RS485 output, integrates toxic gas sensor + transmitter board. Adopting imported advanced electrochemical gas sensors, it has features of high accuracy, long lifetime, high stability and high anti-interference. The module is designed to prevent circuit reversed connection, high voltage, high current and lightning
Gas Module Feature- Long lifetime imported advanced electrochemical sensors- High accuracy op ams, power supply IC, stable and sensitive - Detect low or high concentration toxic gases precisely- High anti-interference ability- Over range protection, reversed polarity protection and lightning protection- Low power consumption with a standard 4-20mA two/three-wire signal output- Interface: pump, diffusing, flange, flange thread types- 12-36VDC operating voltage
Sensor Detecting Range SelectionDetecting range (ppm)/SizeMiniatureCompactSlimStandard0-5O3/M-5O3/C-5O3/S-5-S0-100O3/M-100O3/C-1000-200O3/C-2000-1000O3/C-10000-5000O3/C-50000-30000O3/S-30000
Sensor Performance Characteristics(take O3/C-5 as an example)Operation Principle3-Electrode ElectrochemicalNominal Range0-5 ppmMaximum Overload50 ppmInboard Filter-Output Signal-1500 ± 500 nA/ppmResolution (Electronics dependent)< 0.02 ppmT90 Response Time< 60 secTypical baseline Range (pure air, 20°C)< 0.1Maximum Zero Shift (+20°C to +40°C)0.1 ppmRepeatability< 5 % of signalOutput LinearityLinear Gain-
Sensor ElectricalRec. Load Resistor10 OhmBias (V_Sens-V_Ref)not recommendedConformity to RoHS directiveRoHS Compliance
Sensor EnvironmentalRelative Humidity Range15 % to 90 % R.H. non-condensingTemperature Range-20 °C to 50 °CPressure RangeAtmospheric ± 10%Pressure CoefficientN.D.
Sensor LifetimeExpected Operation Life2 years in airExpected Long Term Output Drift in airN.D.Filter Life-Storage Life6 months in containerRec. Storage Temperature5 °C - 20 °CWarranty Period12 months from date of dispatchPerformance data conditions: 20 °C, 50% RH, 1013 mbar
Module ParametersModule typeGM-I2(3)-M/C/S-**-****/G/P/F/FLDetected gasToxic gas Detecting principleElectrochemistrySamplingDiffusing pump flange threadResponding time30s~40s(of the sensor)Module accuracy≤±3%FS(actual concentration, higher accuracy depends on specified sensors)Module repeatability≤±2% FSModule linear error≤±2% FSModule zero temperature drift≤±2% (FS/year)Module operating temperature-40~80°CModule humidity0-95%RH(non-condensation)Sensor operating temperature-20°C~50°CSensor humidity0-90%RH(non-condensation)Signal outputTTL/4-20mA /RS485 (two or three wire)Transmitting distance1000 meters(RS485)Operating voltageDC 12-36VMaximum power≤0.8WSize80*48mmExplosion proofIntrinsic safeConnection cableRVVP3 x 1.5mm²
Module applications
Petroleum, petrochemical, metallurgy, chemical, electricity, telecom, gas, mining, pharmacy, municipal wastewater treatment, indoor environment, atmospheric environmental protection, transit equipment, transportation facilities, tunnel safety and underground parking, leak detection, safety and environmental control