61302V Barometric Pressure Sensor
CMD110 n
sets output format. RAW and DIAG settings are for
factory use only.
CMD120 n
sets the output multiplier. 10000 represents 1.0000
CMD125 n
sets the output offset in hPa x 100
CMD130 n
sets the sea level correction in hPa x 100
=[Punadjust *( Mult / 10000)] + [(Offset /100) + (Correction Sea Lvl
/ 100)]
CMD140 n
sets the Vout Pressure Range HI
CMD142 n
sets the Vout Pressure Range LO Vout Pressure
Range HI must be greater than Vout Pressure Range LO
CMD144 n
sets the Vout Scale. 2 = 0 to 2500 mV. 5 = 0 to 5000
mV. This parameter setting must agree with the physical P3
jumper position to achieve calibrated voltage output.
CMD150 c
sets the poll address character. Any ASCII character
from ‘0’ (ASCII 48) to ‘z’ (ASCII 122) may be used.
CMD160 n
sets the baud rate. Acceptable values are 38400,
9600, 4800, 2400, and 1200. Note that the baud rate change
occurs immediately after the command is received. Therefore, in
order to continue communicating, the serial communication
program that issued the command must also change to match.
CMD300 n
causes the sensor to pause or resume measurement.
1 = Stop, 2 = Run.
CMD400 n
causes the sensor to issue a report summarizing
parameter settings.
1 = RPT text
2 = RPT code only
CMD410
retrieves the internal calibration table. This is
for factory use only.
CMD420
burns new parameter settings to flash memory. This
step must take place to retain changes otherwise parameters will
revert to the previous values at the next power up.
5.
PROGRAMMING
The 61302V draws upwards of 7mA of power when activated.
Depending on your power supply it may be beneficial to conserve
power. This can be achieved by powering the sensors on and off.
This is done through the switched 12V port on the CR10X,
CR23X, CR800, CR850, CR1000, and CR3000. This is used in
the following program examples.
The default measurement units are Hectopascals (hPa). The
units can be converted by adding programming which makes use
of the following conversions.
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