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UV-DOAS and NDUV Gas Detection Modules for Integration

UV-DOAS/NDUV Modules
for Gas Analysis Integration and Air Quality Monitoring

UV-DOAS/NDUV Modules provide gas analysis in the defined measurement range in the ultraviolet range, specifically designed for environmental monitoring and air quality measurement. These modules are used for detecting pollutants, trace gases, and aerosols in both outdoor and indoor environments. Equipped with advanced optical sensors, the UV-DOAS/NDUV modules offer application-specific sensitivity and accuracy, enabling real-time data collection even in challenging environmental conditions. They are widely used in research applications, regulatory compliance, and industrial monitoring to ensure accurate air quality assessments.

Whether you’re monitoring emissions, pollutants, or conducting scientific research, our UV-DOAS/DOAS Modules deliver reliable and continuous performance, providing a crucial tool for protecting both human health and the environment.

UV-DOAS/DOAS Modules for gas analysis in the defined measurement range in ultraviolet range, used in environmental monitoring and air quality measurement

Applications

  • UV-DOAS/NDUV Modules are widely used for gas analysis in the defined measurement range, particularly in environmental monitoring and air quality measurement. These modules can provide measurement data for pollutant detection and trace gas analysis when the optical path, calibration plan, and operating environment are defined.
  • Environmental Monitoring: Used for detecting pollutants and trace gases in both outdoor and indoor environments. These modules are used to monitor air quality in urban areas, industrial zones, and remote locations.
  • Industrial Emissions Monitoring: Used in factories and power plants for monitoring emissions such as nitrogen oxides (NOx), sulfur dioxide (SO2), and other harmful gases. Supports documentation and test review for projects operating under environmental regulations.
  • Air Quality Measurement: Used for real-time air-quality analysis when the target gas, range, response time, and sampling method are defined. Used in both industrial and residential settings to monitor pollution levels.
  • Regulatory Compliance and Research: Employed in compliance with environmental standards and scientific research. These modules can support pollutant monitoring when the target gases, operating environment, and validation requirements are defined.
  • Weather and Climate Studies: Used in climate research to measure trace gases and aerosols, helping researchers track changes in the atmosphere and predict long-term environmental trends.
UV-DOAS/DOAS Modules in an industrial environment for gas analysis in the defined measurement range and air quality monitoring in factory emissions.

Technical Specifications

Detect Gas H2S
Sampling Method Flow
Sensor Type DOAS
Range 0-20 ppm
Measurement Error ±2% F.S.
Limit of Detection 0.1 ppm
Response Time (T90) ≤20s
Output Signal RS232
Ventilation Flow Rate 1~1.5 L/min
Housing Material Sheet Metal
Tracheal Interface Size 4/6 mm
Supply Voltage 12V ±1V, Current >500mA
Working Current Normal operation: ≤200mA, Impulse current: ≤300mA
Weight < 2kg
Size 350 mm x 110 mm x 110 mm (Based on the actual product)

Key Features / Advantages

  • Application Review: UV-DOAS/NDUV modules provide gas analysis in the defined measurement range in the ultraviolet range, used for environmental monitoring and air quality measurement. Measurement performance depends on optical path, calibration method, sampling conditions, and the operating environment.
  • Real-Time Monitoring: With real-time data collection and fast response times, these modules can support continuous air quality monitoring, pollutant detection, and regulatory review when the configuration is matched to the application.
  • Wide Application Range: Used for urban air quality monitoring, industrial emissions monitoring, and research applications, allowing for flexible deployment across a range of industries and environments.
  • Sensitivity Review: These modules offer application-specific sensitivity for detecting low concentrations of gases and pollutants, making them suitable for applications requiring defined sensitivity and validation conditions.
  • Configuration Review: Configuration and operating cost should be reviewed against the required range, maintenance plan, installation environment, and project documentation.
  • Industrial Design Review: Materials, enclosure, optical path, and environmental protection should be reviewed against humidity, temperature variation, and industrial contamination conditions.
  • Easy Integration: The modules can be integrated with monitoring systems when the output interface, power, and communication requirements are defined.
  • Regulatory Compliance: Documentation and test requirements can be reviewed for projects operating in regulated environments.

RFQ Information for Gas Module Review

For gas module selection, provide the target gas, measurement range, optical path or sampling method, response-time requirement, output interface, installation environment, and calibration expectations. Sartec Photoelectronics can review the application requirements before recommending a suitable module configuration.

Key Advantages

• Configurable Integration: Gas detection modules can be configured around target gas, range, interface, and installation requirements. Whether you need a particular gas concentration range or integration with other equipment, Sartec Photoelectronics can review the measurement range, gas species, interface, and installation constraints.
• Application Review: Each module is designed to offer highly accurate measurements for trace gases, with low detection limits and application-specific sensitivity.
• Real-Time Detection: Modules can support real-time gas analysis when matched to the required response time and sampling conditions.
• Wide Application Range: From environmental monitoring to industrial applications, gas detection modules can be reviewed for industrial, environmental, and OEM instrument applications.

Technical Support

We provide comprehensive technical support to ensure that your gas detection module matches the intended operating conditions. Our services include:
•Installation guidance and setup assistance.
•Troubleshooting for defined performance requirements.
•Ongoing support for maintenance, upgrades, and calibration.


Product Line Link

FAQ – UV-DOAS/NDUV Modules

What gases can UV-DOAS/NDUV Modules detect?

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UV-DOAS/NDUV Modules are designed to detect a wide range of gases, including NOx, SO2, O3, and other atmospheric pollutants, making them used for environmental and air quality monitoring.

What is the typical detection range of UV-DOAS/NDUV Modules?

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The typical detection range of the UV-DOAS/NDUV Modules is 0-5000 ppm, depending on the specific gas being monitored. Custom ranges are available for specific applications.

How accurate are the UV-DOAS/NDUV Modules?

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The UV-DOAS/NDUV Modules provide high accuracy, typically within ±2% of the full-scale reading, ensuring reliable gas detection even in complex environments.

How fast is the response time of UV-DOAS/NDUV Modules?

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These modules offer a fast response time (T90 ≤ 30 seconds), supporting real-time gas detection for continuous air-quality monitoring and emissions-control projects when response time and sampling conditions are defined.

Can UV-DOAS/NDUV Modules be integrated with other monitoring systems?

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Yes, the UV-DOAS/NDUV Modules support easy integration with existing monitoring systems. They offer RS485 communication and Modbus protocol for straightforward data transfer to control units, data loggers, and alarm systems.

What power supply is required for UV-DOAS/NDUV Modules?

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The UV-DOAS/NDUV Modules typically operate on 12V DC power, with a current requirement of >500mA for stable operation.

Are UV-DOAS/NDUV Modules suitable for outdoor use?

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Yes, these modules are designed to be used in both indoor and outdoor environments. They are built to withstand harsh weather conditions and offer robust housing to ensure reliable performance in challenging environments.

How often do UV-DOAS/NDUV Modules need calibration?

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UV-DOAS/NDUV Modules have minimal drift, and calibration is recommended every 6 months to maintain defined performance requirements. Calibration intervals may vary depending on the operating environment.

Get a Quote / Request Model Confirmation

To receive an accurate quote or to request model confirmation for your specific application, please provide us with the following information:

  • Measurement Range: Please specify the required measurement range for your gas detection module. This helps us determine a suitable module based on your concentration needs.
  • Background Gases: Indicate any background gases that might be present in your environment. This ensures that the module is calibrated to account for interference from other gases.
  • Accuracy Requirements: Let us know the level of accuracy needed for your application. Different modules offer varying degrees of precision based on your measurement requirements.
  • Environmental Conditions: Provide details about the environment where the module will be used (e.g., temperature range, humidity, pressure, indoor/outdoor settings). This will help us recommend a module that performs optimally under those conditions.

Once we receive these details, our engineering team will review your requirements and recommend the most suitable model, ensuring it meets your detection and operational needs.

How to Get Started:

Simply fill out the contact form below or email us directly with the information listed above. Our team will get back to you with a tailored quote or product recommendation.

UV-DOAS and NDUV gas module engineering review notes

UV-DOAS and NDUV module selection should start from the target gas, absorption band, optical path, dust or humidity influence, and the required interface for the host instrument.

What information should be prepared before RFQ?

  • Target gases such as SO2, NO2 or other UV-absorbing species
  • Measurement range, optical path and expected background gas
  • Sampling method, window contamination and maintenance plan
  • Analog, digital or serial output required by the host system

Can the module be selected by gas name alone?

No. The same gas can require different optical path, range, response time, sampling and output-interface choices. Sartec Photoelectronics reviews the measurement conditions before suggesting a suitable configuration.

What does the integration review focus on?

The review focuses on measurement method, operating environment, calibration plan, output interface, mechanical constraints and project documentation requirements.