Nitrogen Oxides Analyzer
NOx Analyzer (USEPA Designation No. RFNA-0508-171) for air pollution monitoring and environmental quality measurement to ensure compliance with pollution control regulations
Product Description
- Adopts PMT on detector that directly cools cathodes. It reduces noise, compared to the old model.
- A detection unit increases maintainability and reduces maintenance cost, having a structure that can maintain such components as cooling elements, PMT and reaction cells individually.
- A dust filter is mounted on the panel on the front surface of the analyzer to facilitate dirt checking and filter replacement.
- The optional Ethernet interface unit enables data collection and remote control via LAN.
- The optional CF card records measurements recorded by an analyzer (instantaneous values and hourly average values), the status within an analyzer (temperature, pressure and flow rate), and history of zero deviations, span coefficients, alarms and events.* Data is kept as CSV files in the CF card to facilitate data editing. Various types of data (e.g. minute values, hourly values, alarms and events) are classified into year- or month-wise groups for convenient data organizing.
- A CF card can record the following data volume (the device only accepts our official CF cards that are to be used exclusively for the device.
- Example of storable data (256 MB): data for about 8 years (regular recording only)
- The temperature is controlled with high precision for key components including detector, measurement cell and heater block. This helps reduce the effects of changes in ambient temperature.
Specifications
- Utilizes the chemiluminescence measurement principle.
- The offered brand and model must be US EPA certified and possess a verifiable certification number (specifically RFNA-0508-171).
- Measurement range: 0–500 ppb or a wider range.
- Lower detectable limit: Not exceeding 0.5 ppb or better.
- Zero drift (24 hours): Not exceeding 1 ppb or better.
- Span drift (24 hours): Not exceeding 1% of full scale, 1% of reading, or 1 ppb, whichever is applicable, or better.
- A data communication system based on the RS232 or Ethernet standard (or superior) capable of controlling system operations and reporting performance results to the data collection, analysis, and reporting system.
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