In-Situ Win-Situ 4 / Pocket-Situ 4 Operators Manual - Manual (Page 101)

101
rev. 003 11/04
TIP: The storage
interval (A) must
be at least twice
as long as the rapid interval
(B) times the number of
Measurements for
averaging (C). In the
example below, 5 seconds
x 3 = 15 seconds, so the
storage interval would have
to be at least 30 seconds.
LINEAR AVERAGE
This type of test can eliminate anomalous highs and lows that may
occur—for example, if a wave passes over the instrument at the time a
measurement is made. For every measurement stored in the data file, the
device takes a specified number of measurements at a specified interval,
averages them, and stores the average value.
You are prompted for
A the storage interval (how often an averaged measurement will be
stored in the data file)
B the interval between the rapid measurements that will be averaged
(1-255 seconds)
C the number of measurements that will be averaged for each stored
measurement (2-99)
In the event test example shown in the screen below, a measurement will
be logged every hour (A). The logged measurement will consist of the
average of 5 measurements (C) taken 3 seconds apart (B).
APPENDIX B: TEST MEASUREMENT SCHEDULES