Campbell Scientific Sentek EnviroSCAN EasyAG SDI-12 Manual v 3.4 User Manual
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EnviroSMART & EasyAG SDI-12 Probe Manual
Copyright © 1991 – 2003 Sentek Pty Ltd All rights reserved
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The response indicates that 16 C constant values will be available immediately. The controlling device
will then issue Send Data commands (aDn!) to read the values.
Command
Response
aD0!
a+000.0285+000.0285+000.0285+000.0285+000.0285
+000.0285+000.0285+000.0285
aD1!
a+000.0285+000.0285+000.0285+000.0285+000.0285
+000.0285+000.0285+000.0285
Note: The EnviroSMART and EasyAG SDI-12 probe interface will not issue a service request for this
command.
Note: Refer to notes on Start Measurement (aM! or aMn!) command above.
Soil Moisture Sensor Depth Values (aC9!)
The Start Concurrent Measurement command (aC! or aCn!) “aC9!” allows all soil moisture depth values
to be sampled with a single command. Values are gathered in the same way as for the Start
Measurement command (aM! or aMn!), but the Send Data command (aDn!) may return up to eight(8)
values.
Command
Response
aC9!
A00016
The response indicates that 16 soil moisture depth values will be available immediately. The controlling
device will then issue Send Data commands (aDn!) to read the values.
Command
Response
aD0!
a+010.0000+020.0000+030.0000+040.0000+050.0000
+060.0000+070.0000+080.0000
aD1!
a+090.0000+100.0000+110.0000+120.0000+130.0000
+140.0000+150.0000+160.0000
Note: The EnviroSMART and EasyAG SDI-12 probe interface will not issue a service request for this
command.
Note: Refer to notes on Start Measurement (aM! or aMn!) command above.
Salinity Sensor Depth Values (aC8!)
The Start Concurrent Measurement command (aC! or aCn!) “aC9!” allows all salinity depth values to be
sampled with a single command. Values are gathered in the same way as for the Start Measurement
command (aM! or aMn!), but the Send Data command (aDn!) may return up to eight(8) values.
Command
Response
aC9!
A00016