Innovation Nilu - Model NDL4 -Air Quality Analyzer Data Logger
NDL4 is the fourth generation of NILU data loggers and the accumulation of 35 years of experience in data logger development. NDL4 communicates digitally with the analyzer which makes it possible to collect both measurement data and status parameters. The status parameters give important information about the condition of the analyzer, such as gas flow rates, pump vacuum, etc. A number of commercially available ambient air quality analyzers are predefined in the data logger and can easily be activated. Using an external USB to RS232 converter or data switch, the data logger connects to the RS232 or Ethernet port on the analyzer. Analog sensors are logged using an external analog to digital converter.
Typical data collection rate is 10 seconds and user configurable for each sensor. Data is stored as instantaneous values and as two averages, one common for all instruments, typically 1 hour, and one specific to each sensors, e.g. 1 minute. The data logger can connect to any number of instruments.
The data logger communicates with NILU’s data collection system ADACS via land-line, GSM, GPRS or 4G connections. Using a web browser and a 4G connection the operator has full access via the internet to the data logger including data logger configuartion and data display.
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- Logging from a file share
