Campbell Scientific CS616 and CS625 Water Content Reflectometers - Manual (Page 15)

CS616 and CS625 Water Content Reflectometers
6.4.1.2 CS616 Sample CRBasic Program 2
The following CR1000 program uses the AM16/32-series multiplexer to
measure 48 CS616 probes connected in the 4x16 configuration. The program
also measures datalogger battery voltage and temperature.
Wiring for CRBasic Program Example 2
CR1000 AM16/32-series (4x16) CS616*
Control/Common
Sensor
Terminals
C4 RES Odd H CS616#1_Green
C5 CLK Odd L CS616#2_Green
12 V 12 V Gnd #1,2,3_Blk & Clear
Gnd Gnd Even H CS616#3_Green
1H COM Odd H Even L #1,2,3_Orange
1L COM Odd L
Gnd Gnd
2H COM Even H
C6 COM Even L
*Three sensors to each set of AM16/32 terminals.
CR1000 Program Example 2
'Declare Public and Dim Variables
Public batt_volt
Public Panel_temp
Public Period (48)
Public VWC (48)
Public Flag (1)
Dim I
'Declare Constants
'CS616 Default Calibration Constants
const a0= -0.0663
const a1= -0.0063
const a2= 0.0007
'Flag logic constants
const high = true
const low = false
'Define Data Tables
DataTable (Dat30min,1,-1)
DataInterval (0,30,Min,10)
Minimum (1,batt_volt,FP2,0,False)
Average (1,Panel_temp,FP2,0)
Sample (48,Period(),FP2)
Sample (48,VWC(),FP2)
EndTable
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