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Campbell Scientific Sentek EnviroSCAN EasyAG SDI-12 Manual v 3.4 User Manual

Page 18

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EnviroSMART & EasyAG SDI-12 Probe Manual

Copyright © 1991 – 2003 Sentek Pty Ltd All rights reserved

Page 13

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