Vaisala GMP343 - Manual (Page 51)

Chapter 4 ________________________________________________________________ Operation
VAISALA_______________________________________________________________________ 49
Setting the Ambient Pressure (hPa)
The pressure value is needed in pressure, humidity, and oxygen
compensations. To set the ambient pressure value, use the commands:
P x
SAVE
x=700...1300 hPa (default =1013 hPa)
Sets ambient pressure (hPa) to be used in compensation calculations.
>p 1100
PRESSURE (hPa)): 1100.000
>p
PRESSURE (hPa) : 1100.000 ?
>
>save
EEPROM saved successfully.
>
Setting Pressure When the Device Is in POLL-mode
To set pressure value in POLL-mode, use the following addressable
command:
XP addr x
The device does not reply to the command. If given pressure value is not
within limits, the command is rejected. The given value is written to
volatile memory, where it will be overwritten either by next XP-command
or P-command. At start the first compensation value is a value given by P-
command if it was saved by SAVE-command. Purpose of the XP-
command is continuous update of compensation value sent by another
measurement device.