Biogas Analyzers
KSA-2300H
UV-DOAS Hydrogen Sulfide (H₂S) Analyzer
- Model
- KSA-2300H
- Manufacturer
- SENSORONIC
- Category
- Gas Analyzers › Biogas Analyzers
Parameters: H2S
IndustriesEnergy & Biogas
Measurement PrincipleUV-DOAS
Overview
KSA-2300H is an online hydrogen sulfide analyzer that measures H2S concentration using UV absorption spectroscopy (UV-DOAS). It covers both low and high H2S ranges with 1 ppm resolution.
Two sampling channels allow simultaneous monitoring upstream and downstream of an H2S scrubber, making it well suited to checking the efficiency of biogas upgrading. Response time (T90) is within 60 seconds.
It provides a 4~20 mA output channel for each gas and an automatic zero function, and is used at anaerobic digesters, landfill gas sites, biogas flares and biomethane production facilities.
Key Features
- Precise hydrogen sulfide (H2S) measurement using UV-DOAS
- Simultaneous monitoring upstream and downstream of the H2S scrubber
- Biogas upgrading process analysis with 2 sampling channels
- Capable of measuring high-concentration H2S
- Precise concentration analysis with 1 ppm resolution
- High accuracy and reliability of the UV-DOAS sensor
- Response time (T90) within 60 s
- Optimized biogas monitoring process
- Continuous gas concentration monitoring and process control
- 4~20 mA analog output channel for each gas
- RS-232/RS-485 Modbus communication
- Gas concentration alarm and alarm relay output
- Modular design for easy calibration
- Automatic zero function
Measured Parameters
| Parameter | Measuring Range |
|---|---|
| H2S (low range) | 0~500ppm |
| H2S (high range) | 0~5000ppm |
Measurement Performance
| Parameter | Method · Accuracy · Resolution |
|---|---|
| H2S (low range) | Method: UV-DOAS · Accuracy: ±2%FS · Resolution: 1ppm |
| H2S (high range) | Method: UV-DOAS · Accuracy: ±2%FS · Resolution: 1ppm |
Specifications
| Manufacturer | SENSORONIC |
|---|---|
| Measured gases | H2S |
| Method | UV-DOAS |
| Measurement range | 0~500ppm (Low) / 0~5000ppm (High) |
| Resolution | 1ppm |
| Accuracy | ±2%FS |
| Repeatability | ≤1% |
| Response time (T90) | Within 60 s |
| Gas flow rate | 2~50 kPa |
| Analog output | 4~20 mA output channel for each gas |
| Digital communication | RS-232 / RS-485 Modbus Protocol |
| Alarm function | Gas concentration alarm and alarm relay output |
| Sampling channels | 2 channels |
| Automatic zero function | Supported |
| Operating temperature | -15℃ ~ +45℃ |
| Operating humidity | 0~95%RH (non-condensing) |
| Ambient pressure | 80~120 kPa |
| Power supply | AC220V, 50Hz |
| Dimensions | 400×485×132 mm (L×W×H) |
| Weight | 12 kg |
Applications
- Hydrogen sulfide concentration analysis of anaerobic digesters
- Biogas engines and combined heat and power (CHP) plants
- Hydrogen sulfide monitoring of landfill gas
- Gas concentration monitoring of biogas flares
- Gas concentration measurement upstream and downstream of H2S scrubbers
- Upgrading and biomethane production facilities
- Biogas composition analysis at wastewater treatment plants
- Process control and quality control at biogas upgrading facilities
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