Sutron 8310 - Page 67

Sutron Corporation 8310 & 7310 Users Manual 8800-1125Rev. 2.7 (BETA) 4/16/2014 pg. 67
Mean Direction Wind – This is the wind direction (in degrees) weighted for wind speed. Here,
the average of 10mph at 0 with 20 mph at 90 is 63.4 .
STD Speed Scalar – This is the standard deviation of the scalar wind speed.
STD Direction Unit – This is the standard deviation of the direction unit.
STD Direction Wind – This is the standard deviation of the direction wind.
Min Speed Scalar – This is the minimum of the scalar wind speed.
Max Speed Scalar – This is the maximum of the scalar wind speed.
Max Direction – This is the direction taken at the time the max speed is detected.
Count – This is the number of samples that have been taken.
Speed – This is the instantaneous speed, available after every sample.
Dir – This is the instantaneous direction, available after every sample.
Accumulate
Takes multiple samples of an input and keeps a running total (accumulation) as set by the
properties. The two outputs available are:
A) The accumulation itself, available at the end of each measurement interval and
designated by adding “Acc” to the measurement name, such as ExampleAcc.
B) The instantaneous samples used to compute the accumulation, available at every
SampeInterval, and referred to as simply the masurement name, such as Example.
Note that the sample data is affected by the input processing step (Mx.Ix
Processing), but it is not affected by the accumulation parameters of Threshold, or
WeightForTime.
Properties used by Accumulate are described below:
UseThreshold
Unit vector, 90
Resultant angle =
= 45
MnDirUnit = 45
Unit vector, 0
20 mph, 90
Resultant angle =
= 63.4
MnDirWind = 63.4
10 mph, 0