Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017
pg. 32
Command
Description
Command Syntax
(command underlined)
ACCUBAR
®
response (underlined)
"a" represents the single-character address
XS
Self-Cal the
Elevation Offset
aXSdu!
where d is the desired reading for the sensor
and in the units indicated by u. The
ACCUBAR
®
will make repeated
measurements and adjust the elevation
offset to insure the reading matches the
value entered.
Example: 0XS+1007.9+0
(sensor is at 1007.9 mB, adjust offset to
insure this reading)
attt1
where ttt indicates the command will be
complete in ttt seconds and 1 indicates one
value can be collected.
Note:
a D0 command issued after XS is
complete will display the new offset in the
current units of pressure. The offset can also
be displayed using the M3 command.
XT
Set Averaging Time
aXT+t!
t = averaging time in seconds (0 to 120
seconds)
Example: 0XT+10!
(sets the averaging time to 10 seconds)
a0012
indicating the command will be complete in 1
second and 2 values can be collected
Note:
a D0 command issued after the XT will
return the average time and the number of
samples to be averaged during the average
time. Actual time to return the measurement
will be longer due to calibration overhead.
