Xylem H-3551 - Manual (Page 29)

H-3551
SDI-12 Command and Response Protocol 5-11
"aD0!" "a+30.0” BubbleRate is 30.0 bubbles/min
5.10 Extended Test Pump Motor Command
This command is used during installation and testing to activate the pump motor for 5.0 seconds.
Example of a H-3551 Extended "Test Pump Motor" command:
Command Response Description
"aXTPM!" "0050" Activate the pump motor for 5 seconds
5.11 Extended Test Purge Valve Command
This command is used during installation and testing to activate the purge valve solenoid for 5.0
seconds.
Example of a H-3551 Extended "Test Purge Valve" command:
Command Response Description
"aXTPV!" "0050" Activate the purge valve for 5 seconds
5.12 Extended Test Auto-Zero Valve Command
This command is used during installation and testing to activate the auto-zero valve solenoid for
5.0 seconds.
Example of a H-3551 Extended "Test Auto-Zero Valve" command:
Command Response Description
"aXTAZ!" "0050" Activate the auto-zero valve for 5 seconds
5.13 Extended Test COP (Computer Operating Properly) Timer Command
This command causes the COP timer to expire which in turn should initiate a system reset.
Example of a H-3551 Extended "Test COP Timer" command:
Command Response Description
"aXCOPT!" "0050" Test the COP timer