Campbell Scientific CS616 and CS625 Water Content Reflectometers - Manual (Page 17)

CS616 and CS625 Water Content Reflectometers
Timeout : The Timeout parameter is the maximum time duration, in
milliseconds, that the datalogger will wait for the number of Cycles to be
measured for the average calculation. An overrange value will be stored if the
Timeout period is exceeded. A value of 1 is recommended if 10 is used for
cycles parameter.
Port : The Port parameter is the control port or analog channel that will be used
to switch power to the CS625 Water Content Reflectometer. Valid options are:
Code Description
0 None
C1 Control Port 1
C2 Control Port 2
3 Analog Channel 3
4 Analog Channel 4
5 Analog Channel 5
P_SW Analog Channel 6/P_SW
Mult, Offset : The Mult and Offset parameters are each a constant, variable,
array, or expression by which to scale the results of the raw measurement. A
multiplier value of 1 is recommended.
6.4.3 Sample Programs for CS625
TABLE 6-2. CS625 Sample Programs
Sample
Program
Number Program Description
1 Measure volumetric water content with 4 CS625 hourly. Store
average hourly readings to final storage every 4 hours.
2 Measure temperature with 109 probe and use the 109
temperature to correct the period for 1 CS625. Use standard
calibration equation to convert temperature-corrected period to
volumetric water content. Sensors are read hourly and average
water content and temperature are written to storage every 4
hours.
6.4.3.1 CS625 Sample Program 1
Hourly measure temperature with 109 probe and volumetric water content with
4 CS625. Store average hourly readings to final storage every 4 hours.
CS625 leads CR200(X)
greens
Single-Ended Channel 1 thru 4 (SE1-4)
blacks associated grounds for SE1-4
oranges Control Port 1 (C1)
reds SW Battery
clears G
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