In-Situ Aqua TROLL 400 Modbus and SDI-12 Reference Guide - Manual (Page 23)

Name Command Response
Set ORP Offset
Send Data
aXrOpd.d!
aD0! a0011<CR><LF>
One result is available in 1 second for reading by
the Send Data command. A service request
(a<CR><LF>) will be sent when the result is ready.
pd.d = ORP offset (+/- 1000 mV)
p = polarity sign (+ or -)
d = digits (1 to 7)
. = decimal point (optional)
a+s<CR><LF>
s = command status, 1 = command successful, 0 =
command failed (offset out of range, sensor not
plugged in)
Read ORP Offset
Send Data
aXrO!
aD0! a0011<CR><LF>
One result is available in 1 second for reading by
the Send Data command.
a+pd.d<CR><LF>
pd.d = ORP offset (mV, returns -9999 if sensor is
not plugged in)
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