EmailThe OGA-100 Odor Gas Analyzer is an independently developed gas analysis product designed for online monitoring of odor gases from unorganized emission sources and main discharge outlets. Based on characteristic absorption spectroscopy and the PLS algorithm, it can simultaneously monitor various odor gases, including methyl mercaptan (CH₄S), dimethyl sulfide (C₂H₆S), dimethyl disulfide (C₂H₆S₂), styrene (C₈H₈), carbon disulfide (CS₂), hydrogen sulfide (H₂S), ammonia (NH₃), trimethylamine (C₃H₉N), TVOC, and odor concentration (OU value). Additionally, other components such as SO₂, NO, and NO₂ can be included according to user requirements.
Capable of directly monitoring the concentration of various odor gas components with fast response speed
Uses a high-resolution spectrometer with a low detection limit
PLS algorithm effectively eliminates cross-interference between components
Utilizes a long-life pulsed xenon lamp as a light source, with no optical moving parts in the device
High instrument stability
Built-in constant temperature components, minimal temperature drift, and strong environmental adaptability
>Atmospheric odor unorganized emission monitoring
>Residential area ambient air odor monitoring
>Mobile vehicle odor gas monitoring
>Chemical industrial park unorganized emission monitoring
>Waste treatment plant unorganized emission monitoring
| Principle | C2H6S, C2H6S2 , C3H9N, C8H8 , CH4S, CS2 , H2S, NH3 : characteristic absorption spectroscopy TVOC: PID; OU: empirical formula inversion |
| Components & ranges | C2H6S, C2H6S2 , C3H9N, CH4S, H2S, NH3 , TVOC (optional): 0~5μmol/mol; C8H8 , CS2 : 0~1μmol/mol; OU: 0~1000 |
| Repeatability | Within 3% |
| Stability | ≤5% |
| Zero drift | Within ±1%F.S./24d |
| Span drift | Within ±3%F.S./24d |
| Response time (T90) | ≤120s |
| Digital signal | 13 outputs, 6 inputs, configurable |
| Protocol | HJ 212-2017, Modbus RTU, Modbus TCP |
| Comm | RS232, RS485, RJ45 |
| Sample flow rate | 2L/min |
| Calibration gas | Zero gas: Dry nitrogen or clean air |
| Span gas | Must be within 90%–110% of the target range; unsuitable if outside this limit |
| Ambient temp | (0~40)℃ |
| Ambient humidity | ≤85%RH, non-condensing |
| Power supply | AC (220±22)V, (50±1)Hz |
| Power consumption | About 150W |
| Dimensions & weight | 483(W)*530(D)*221(H)mm (excluding protruding parts), about 30kg |
