11 Read and analysis of measurement data
11 Read and analysis of measurement data
The S418-V embeds the data logger to record measurement data. You
can read out the data from the data logger, and analyze the data using
the free analysis software S4A.
11.1 Features
Before you use the data logger, learn about how it works:
•
You can use the Android App S4C-FS to enable or disable the data
logger function and set a sampling rate as needed.
•
By default the data logger is disabled. Once you enable the data
logger, the S418-V starts logging data. Once you disable the data
logger, the S418-V stops logging.
•
The S418-V saves all sampled data records into one file. Each
record includes a time stamp and all measurement data sampled
at this time point, such as flow, consumption, and pressure.
•
The S418-V log file supports up to 5.6 million records due to its
memory size, which is equivalent to 64-day data at the one-
second sampling rate.
•
When the S418-V runs out of memory, the new record will replace
the oldest one.
•
To read out the logs recorded in the S418-V memory, install S4A
(1.1.2 or later versions), which is a specialized log analysis
software from SUTO, on a Windows-based computer. Meanwhile,
connect the PC with the S418-V through the USB port.
•
Data records are saved in one file in the S418-V, and usually S4A
reads them out in one file. But in the following situations, S4A
reads the records out into multiple log files :
•
When the sampling rate is changed, S4A reads out the data
records into a different file.
•
When the S418-V stops logging (for example, when the power
is shut off.) and resumes in less than 24 hours, S4A still reads
out the data records into one file; However, if the time gap is
larger than 24 hours, S4A reads out the new data records to a
different file.
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