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THEORY OF OPERATION
10.5.3. Internal Data Acquisition System (iDAS)
The iDAS is designed to implement "predictive diagnostics" that stores historical
trending data so users can anticipate when an instrument will require service. The
stored data is in a form that makes it easy to process with another computer
application and plot graphically.
The iDAS is designed to be flexible. It has a consistent user interface in all
instruments, but each instrument's differences are accommodated. New data
parameters and triggering events can be added to the instrument firmware as
needed. Users have full control over which data is stored and when it's stored.
The iDAS is designed to store a large amount of data. Depending on the sampling
frequency and the number of data parameters the iDAS can store more than a
year's worth of data. The data is stored in non-volatile memory, where it's retained
even when the instrument is powered off or a new firmware version is installed.
The iDAS permits users to access the stored data via the instrument's front panel or
the remote interface. The latter is designed for a remote computer to automatically
download the stored data for further processing.
See Section 6.11 for detailed information on using the iDAS.
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Model 400E Ozone Analyzer
Instruction Manual
P/N 04316 Rev: B
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