Features:
- The APNA-370 uses a combination of the dual cross-flow modulation type chemiluminescence principle and the referential calculation method. This gives it the advantages of the single-detector method plus the ability to do continuous measurements of NOX, NO, and NO2. The design gives great stability and extremely high sensitivity (0.1 ppm F.S.)
- Standard equipment includes a drier unit with an automatic recycle function to provide dry ambient air as the ozone source. This makes long-term continuous measurements possible.
- The detector uses a silicon photodiode sensor to reduce size and prolong working life.
- All the necessary features are built right into a single rack-sized unit, including a reference-gas generator, an ozone-source drier unit, an ozone decomposer, and a sampling pump. No supplemental gas is required.