XLINK 500/100 Operations & Maintenance Manual page # 74
9.1.11. Picture
A picture of the sensor is shown to the right of the sensor information. LinkComm includes
pictures for many common sensors and Measurement Types. Press “Change” to choose an
image in the computer or take a picture to use.
9.1.12. Defaults
Press the Defaults control to set all the settings for a specific measurement to default values.
Note the default measurement type is SDI-12. Setting defaults will also set the metadata
(picture, icon, description etc.) to default values.
9.2. Schedule
9.2.1. Measurement Interval
Measurement interval is simply the time between scheduled measurements. See Measurement
Time.
9.2.2. Measurement Time
Measurement interval and time dictate when the measurement will be made. The interval
controls how often the measurement is made, and the time controls when the measurement is
started.
Example 1 (The measurement is logged every 10 minutes at 0 seconds past the minute):
time 00:00:00 interval 00:10:00
00:10:00 data measured and logged
00:20:00 data measured and logged
00:30:00 data measured and logged
and every 10 minutes afterwards…
Example 2 (The measurement is taken and logged every 5 minutes at 30 seconds past
the minute): time 00:00:30 interval 00:05:00
00:00:30 data measured and logged
00:05:30 data measured and logged
00:10:30 data measured and logged
9.2.3. Averaging Time, Sampling Interval, Subsamples, and Results
XLink can collect multiple samples and average them in order to produce a single result.
Averaging is useful for measuring changing conditions, such as wind and water level. For
example, correctly measuring the level of choppy water requires that wave action be canceled.
That can be accomplished by averaging over several minutes.
Setting the Averaging Time to 00:00:00 (zero) disables averaging -- one sample is to be
collected. This is the default setup. If Averaging Time is zero, Sampling Interval and Subsamples
will not be shown in the setup.
When averaging is enabled, several samples are taken and averaged into a final result. Each
sample may also be composed of several subsamples.
Averaging Time determines how long to collect samples for.
Sampling Interval dictates how often to collect each sample.
Subsamples tell how many sensor readings to include in each sample. Do not use
Subsamples unless you need two levels of averaging.
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