Campbell 03002, Product Manual

Page: 12 / 30

7.2 Programming
Short Cut is the best source for up-to-date data logger programming code. If your data
acquisition requirements are simple and you are connecting the sensor to a pulse terminal, you
can probably create and maintain a data logger program exclusively by using
Short Cut . If your
data acquisition needs are more complex, the files that Short Cut creates are a great source for
programming code to start a new program or add to an existing custom program.
NOTE:
Short Cut cannot edit programs after they are imported and edited in CRBasic Editor .
A Short Cut tutorial is available in QuickStart (p. 2). If you wish to import Short Cut code into
CRBasic Editor to create or add to a customized program, follow the procedure in Importing
Short Cut code into CRBasic Editor (p. 17). Programming basics for CRBasic data loggers are
provided in the following sections. A complete program is provided in Example program (p. 18).
Programming basics and programming examples for Edlog data loggers are provided at
www.campbellsci.com\old-manuals .
7.2.1 Wind speed
Wind speed is measured by using the
PulseCount()
instruction. Syntax of the the
PulseCount()
instruction is:
PulseCount (Dest, Reps, PChan, PConfig, POption, Mult, Offset)
Set the
PConfig
parameter to Low Level AC and the
POption
parameter to Frequency.
The expression for wind speed (U) is:
U = Mx + B
where
M = multiplier
x = number of pulses per second (Hertz)
B = offset
Table 7-4 (p. 10) lists the multipliers to obtain miles/hour or meters/second when the
measurement instruction is configured to output Hz.
Wind Sentry Series 9