Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017
pg. 29
Command Description
Command Syntax
(command underlined)
Sensor response (underlined)
"a" represents the single-character address
MC2
Request Temperature
Measurement with
CRC-16
aMC2!
aD0!
attt2
ttt is the time in seconds until the measurement
is ready and 2 is the number of values that can
be collected
a
service request
atuC
where t is the temperature, u is the units 0=
Celsius and 1=Fahrenheit, and C is the 3
character CRC. Use the XUT command to set the
units.
MC3
Request User Scale,
User Offset, and Field
Calibration Offset with
CRC-16
aMC3!
aD0!
a0003
000 is the time in seconds until the
measurement is ready and 3 is the number of
values that can be collected
asocC
where, s is the user scale and o is the user offset
(mB), c is the field calibration offset (current
pressure units), and C is the 3 character CRC.
MC4
Request Standards lab
Calibration Scale and
Offset with CRC-16
aMC4!
aD0!
a0002
000 is the time in seconds until the
measurement is ready and 2 is the number of
values that can be collected
asoC
where, s is the scale calibration, o is the offset
calibration (mB), and C is the 3 character CRC.
