Continuous Emission Monitoring Systems (CEMS)
Gasboard-9070
High Temperature UV Flue Gas Monitoring System
- Model
- Gasboard-9070
- Category
- Continuous Monitoring Systems › Continuous Emission Monitoring Systems (CEMS)
Parameters: SO2, NO, NH3
IndustriesEmission Monitoring
Measurement PrincipleUV-DOAS
Overview
Gasboard-9070 is a high-temperature UV-DOAS flue gas monitoring system that measures SO2, NO and NH3 simultaneously. A multi-reflection cell, fully heat-traced sample path and low-adsorption materials prevent SO2 and NH3 loss, making it suitable for monitoring before and after desulfurization and denitrification and for checking ammonia slip.
Key Features
- Adopt UV-DOAS technology to measure SO2, NO, NH3 gas concentration simultaneously with high accuracy.
- Using multiple reflection gas chamber to provide ultra-low range measurement and low detection limit.
- High temperature tracing on entire gas flow path, adopting low-adsorption materials and processing techniques to effectively avoid the loss of SO2 and NH3.
- Extractive measurement method, not affected by dust, temperature, and pressure fluctuations in the flue.
- Built-in automatic correction algorithm to eliminate interference from other gas components.
- Automatic calibration design, easy for operation and maintenance.
- Widely applicable on different applications, not restricted by on-site installation conditions.
Measured Parameters
| Parameter | Measuring Range |
|---|---|
| SO2 | To be confirmed |
| NO | To be confirmed |
| NH3 | To be confirmed |
Specifications
| Measuring Component | SO2, NO, NH3 |
|---|---|
| Measuring Principle | UV-DOAS |
| Measurement Range | SO2: 1000mg/m3; / NO: 100mg/m3; / NH3: 20mg/m3 / (Outlet of denitration) / SO2: 50mg/m3; / NO: 50mg/m3; / NH3: 20mg/m3 / (Outlet of stack) |
| Precision | ≤± 2%F.S. |
| Resolution | 0.1ppm |
| Repeatability | ≤1%F.S. |
| Response Time | T90≤60s |
| Ambient Temperature | (0~50)°C |
| Power Supply | AC220V, 800W |
| Purge Gas Source | (0.4~0.8) MPa compressed air |
| Communication | RS485, RS232 |
| Output Mode | 4 channels 4~20mA output8 channels relay output |
Applications
- Monitoring before and after desulfurization and denitrification
- Ammonia slip monitoring
- Industrial stack emission measurement
