Odor Gas Analyzer (Z-28i Ein)
Model Z-28i Ein
Z-28i Ein UV-DOAS odor gas analyzer for fugitive emissions and ambient air, measuring methyl mercaptan, H₂S, NH₃, styrene, TVOC and odour concentration (OU).
- Designed & manufactured in-house
- Tested & calibrated to traceable national standards
- Installation, AMC & after-sales support
Talk to our technical team: 08048057962
Overview
The Z-28i Ein is an online analyzer for odour gases at fugitive emission sources and in ambient air. It uses ultraviolet differential optical absorption spectroscopy with a PLS algorithm to measure compounds such as methyl mercaptan, hydrogen sulphide, ammonia, styrene and carbon disulphide, with TVOC by PID and odour concentration (OU) calculated from the results.
A high-resolution spectrometer and PLS processing reduce cross-interference, while a long-life xenon light source, no moving optical parts and built-in constant-temperature components support stable operation. It can be extended to SO₂, NO and CO.
Key features
- UV-DOAS with PLS algorithm
- Odour compounds incl. H₂S, NH₃, methyl mercaptan, styrene, CS₂
- TVOC (PID) and odour concentration (OU)
- High-resolution spectrometer; low cross-interference
- Long-life xenon lamp, no moving optical parts
- Constant-temperature components
- HJ 212-2017 / Modbus RTU / Modbus TCP; RS232, RS485, RJ45
Applications
- Fugitive emission monitoring
- Ambient odour monitoring
- Industrial and environmental air quality
Technical specifications
| Measurement Principle | C2H6S, C2H5S, C3H9N, C8H8, CH4S, CS2, H2S, NH3, etc.: Characteristic absorption spectroscopy; |
|---|---|
| TVOC | PID method |
| Odor Concentration (OU) | Empirical formula inversion |
| Measured Components & Range | C2H6S, C2H6S2, C3H9N, CH4S, H2S, NH3, TVOC (optional): 0~5μmol/mol |
| C8H8, CS2 | 0~1μmol/mol |
| Odor Concentration | 0~1000 OU |
| Repeatability | ≤3% |
| Indication Error | ≤5% F.S. |
| Zero Drift | ≤1% F.S./24h |
| Span Drift | ≤3% F.S./24h |
| Response Time (T90) | ≤120s |
| Data Transmission Protocol | HJ 212-2017, Modbus RTU, Modbus TCP |
| Communication Interface | RS232, RS485, RJ45 |
| Sample Gas Flow | (2±0.5) L/min |
| Operating Temperature | (0~40)℃ |
| Operating Humidity | ≤85% RH, non-condensing |
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