Xylem H-3531 FlashLite - Manual (Page 49)

H-3531
SDI-12 Command and Response Protocol 5-11
5.10 Extended Set Current Stage Command
The H-3531 FlashLite™ processes the pressure sensor input and computes Pressure in PSI units.
Stage is computed with a Stage = m * Pressure + b equation. During installation it is convenient
to quickly set the H-3531 FlashLite™'s Stage reading to match the current stage, elevation or
pressure of the water as determined by a staff gauge or other datum. This command causes the H-
3531 FlashLite™ to make a fresh measurement and automatically update the Offset (b) term as
needed to produce the desired Stage.
Command Response Description
"aXSCSddd!" “a0061<cr><lf>" Set current Stage
Where: a is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XSCS are upper case characters.
ddd is the new current stage value.
Example of a H-3531 Extended "Set Current Stage" command:
Command Response Time Values Description
"aXSCS2.3!" "a0061<cr><lf>" 6 sec 1 Set the Stage to 2.3
Subsequent Command Response Description
"aD0" a+1.80<cr><lf> The new Offset