VOC Online Monitoring System
Continuous VOC, NMHC and benzene series monitoring for industrial emission sources and ambient applications.
VOC Online Monitoring System for environmental monitoring projects
VOC, NMHC and benzene series online monitoring system for industrial emission sources and ambient applications.
A VOC online monitoring system is selected for chemical plants, coating lines, petrochemical areas, storage tank zones, industrial park boundaries and source emission points where volatile organic compounds need to be continuously observed. It supports both source emission and ambient monitoring discussions depending on sampling arrangement.
Configuration depends on target compounds, measurement method, sampling temperature, moisture, particulate condition, explosion-proof requirement and data output. For NMHC or benzene series projects, sampling lines, calibration gas, carrier gas and analyzer cabinet conditions are part of the early configuration discussion.
Technical data for model selection
Review the main measuring range, output interface, operating conditions and configuration notes before quotation.
Huisheng confirms the final model, range and site configuration according to sample condition and monitoring requirement.
| Item | Specification / selection note |
|---|---|
| Systems | AG-VOCs-07 and AG-VOCs-09 flue gas NMHC continuous monitoring systems |
| Standard referenced | HJ 1013-2018 fixed pollution-source waste gas NMHC CEMS technical requirement and test method |
| Core measurement unit | AG-GC07 or AG-NMHC07 chromatographic analyzer; GC-FID detector route is described |
| System composition | NMHC monitoring unit, flue gas parameter monitoring unit, data acquisition and processing unit |
| Sample / pretreatment path | Heated sampling probe, heated sampling line, back-flush system, precision filter, high-temperature sampling pump and flowmeter |
| NMHC range | 0-100 mgC/m3; range can be configured |
| O2 range | 0-25% |
| Repeatability | <=2% |
| 24h zero/span drift | <= +/-2% F.S. |
| One-week zero/span drift | <= +/-3% F.S. |
| Linearity error | <= +/-2% F.S. |
| Analysis cycle | <=120 s |
| Power | AC 220V, 50Hz, <=7kW |
| Output context | 4-20mA and serial communication interfaces are listed in the system technical data |
Configured around the actual monitoring point
VOC measurement and sampling path depend on target compounds, range, response time and method.
VOC emission sources, plant boundary air, workshops or hazardous gas areas
Temperature, moisture, dust, solids, corrosive components or compound type may affect configuration.
Analyzer, detector, sampler, cabinet, pretreatment and data output can be combined as one product package.
Specifications are prepared according to the selected model and actual project requirement.
Details Huisheng reviews before confirming a model
Huisheng reviews the product model together with the measured medium, target range, sampling condition, installation position and required specifications. This keeps the product discussion tied to the real monitoring point.
Expected concentration or detection level helps determine the model and measurement method.
Temperature, moisture, suspended solids, dust, corrosion or target compound behavior may change the configuration.
VOC measurement and sampling path depend on target compounds, range, response time and method.
Fixed point, boundary point, workshop area, mobile unit or portable inspection use
Communication output, alarm logic and model-specific specifications depend on the selected model.
Monitoring indicators covered by this product series
The final parameter package depends on the selected model, measuring range, sample condition and data output requirement. For many projects, one instrument is part of a complete monitoring point rather than a stand-alone purchase.
VOCs
Gas indicator used for VOC, toxic gas, hazardous area or industrial boundary monitoring.
NMHC
Gas indicator used for VOC, toxic gas, hazardous area or industrial boundary monitoring.
Benzene series
Gas indicator used for VOC, toxic gas, hazardous area or industrial boundary monitoring.
Methane
This item is confirmed by the selected model, measuring range, sample condition and site requirement.
Sample heating
This item is confirmed by the selected model, measuring range, sample condition and site requirement.
Data acquisition
This item is confirmed by the selected model, measuring range, sample condition and site requirement.
How the product fits into a complete monitoring chain
Most projects connect the product with sample access, conditioning, measurement, data acquisition and reporting. The exact arrangement depends on the site and selected model.
Sampling probe or ambient intake
The sample access point determines whether filtration, heating, flow control or preservation is required.
Heated sampling line if required
This part is configured according to the selected model and actual site conditions.
Pretreatment and flow control
Pretreatment protects the analyzer and helps keep measurement conditions stable.
VOC analyzer or detector module
This part is configured according to the selected model and actual site conditions.
Data acquisition and alarm output
Data acquisition, alarm output and communication must match the project platform or reporting requirement.
Where this equipment is usually discussed
VOC and toxic gas applications are usually defined by the emission source, boundary point, workshop zone or emergency detection task. Target compounds, response time and installation method decide the product direction.
Used around process areas, storage zones and boundary points where VOC or hazardous gas monitoring is required.
Configured according to the monitoring point, sample condition, installation environment and expected data use.
Used around process areas, storage zones and boundary points where VOC or hazardous gas monitoring is required.
Verified product photos for model review
VOC monitoring cabinets and gas-analysis product views for model discussion and project selection.
