Vaisala GMP343 - Manual (Page 33)

Chapter 4 ________________________________________________________________ Operation
VAISALA_______________________________________________________________________ 31
Getting the Measurement Message
Measurement Units
GMP343 outputs the following units:
- Carbon dioxide (ppm)
- Temperature (ºC)
For other measurement units (%, non-metric units), use the Vaisala MI70
indicator.
Starting the Continuous Outputting
R
This command starts the continuous outputting of results (output form
defined with the command FORM). Data is printed with the interval
defined with the command INTV. Printing can be stopped with the
command S.
>r 345.0 ppm
344.1 ppm
343.6 ppm
345.6 ppm
346.1 ppm
344.1 ppm
343.5 ppm
345.5 ppm
>
Stopping the Continuous Outputting
S
Ends the RUN mode; after this command all other commands can be used.
NOTE The built-in temperature sensor is intended for compensation of the CO
2
measurement. By default the compensation is enabled. For more
information, see section
Temperature, Pressure, Relative Humidity, and
Oxygen Compensations on page 45 .
NOTE Measurement units (ppm and %) express the CO
2
concentration by gas
volume.1 % CO
2
= 10 000 ppm CO
2