H-3531 – Xylem H-3531 FlashLite User Manual
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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