Campbell Scientific CS616 and CS625 Water Content Reflectometers - Manual (Page 26)

CS616 and CS625 Water Content Reflectometers
Sensor lead CR10X
CS616 green Single-Ended Channel 2 (SE2)
CS616 orange Control Port 4 (C4)
107 red Single-Ended Channel 1 (SE1)
107 black Excitation 1 (E1)
107 purple Analog Ground (AG)
107 clear Ground (G)
The CS616 red leads are connected to 12 Vdc and the blacks and shields are
connected to ground.
;{CR10X}
;
*Table 1 Program
01: 60
Execution Interval (seconds)
;set reference temperature for temperature correction
1: Z=F x 10^n (P30)
1: 20
F
2: 0 n, Exponent of 10
3: 2 Z Loc [ Tref ]
2: If time is (P92)
1: 0000
Minutes (Seconds --) into a
2: 240 Interval (same units as above)
3: 30 Then Do
3: Temp (107) (P11)
;Measure soil temperature.
1: 1 Reps
2: 1 SE Channel
3: 1 Excite all reps w/E1
4: 1 Loc [ TSoil ]
5: 1.0 Mult
6: 0.0 Offset
4: CS616 Water Content Reflectometer (P138)
1: 1
Reps
2: 2 SE Channel
3: 4 C4 is first of sequential Control Ports used
4: 3 Loc [ CS616 ]
5: 1.0 Mult
6: 0.0 Offset
;The following four instructions correct CS616 period for soil temperature
;The corrected period is stored as variable NewCS616.
5: Polynomial (P55)
1: 1
Reps
2: 3 X Loc [ CS616 ]
3: 4 F(X) Loc [ TempCS616 ]
4: 0.526 C0
5: -0.052 C1
6: 0.00136 C2
7: 0.0
C3
8: 0.0 C4
9: 0.0 C5
6: Z=X-Y (P35)
1: 2
X Loc [ Tref ]
2: 1 Y Loc [ TSoil ]
3: 5 Z Loc [ TFactor ]
20