Campbell Scientific CS650 and CS655 Water Content Reflectometers - Manual (Page 25)

CS650 and CS655 Water Content Reflectometers
TABLE 6-3. CS650 Terminal Commands
Command Values Returned Units
0 1) Volumetric Water Content, θ
2) Electrical Conductivity, σ
3) Temperature
m 3 /m 3
dS/m
°C
1 1) Permittivity, ε
2) Electrical Conductivity, σ
3) Temperature
dS/m
°C
2 1) Period, τ
2) Voltage Ratio, α
3) Temperature
µ Sec
°C
3 1) Volumetric Water Content, θ
2) Electrical Conductivity, σ
3) Temperature
4) Permittivity, ε
5) Period, τ
6) Voltage Ratio, α
m 3 /m 3
dS/m
°C
µ Sec
5 1) Copyright information
2) OS version and Date
3) Product Serial Number
4) Product User Name
5) SDI-12 Address
H or h Help Menu
6.5 SDI-12 Measurements
The CS650 responds to SDI-12 commands M!, M1!, M2!, M3!, ?!, and I!.
TABLE 6-4 shows the values returned for each of these commands. The ?!
and I! commands are not used with Edlog dataloggers.
See Section 6.3.1, SDI-12 Wiring, for SDI-12 wiring details.
See Appendix B for additional detail concerning SDI-12 sensors, including
changing the SDI-12 address in SDI-12 transparent mode.
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