Vaisala GMP252 - Page 53

Syntax Description
cco2 -lo [co2]<cr>
cco2 -hi [co2]<cr>
Perform a 1-point (only either low or high
concentration) or 2-point (both low and high
concentrations) calibration and adjustment.
-lo = Adjustment at low concentration (under 1000
ppmCO
2
)
-hi = Adjustment at high concentration (over 2000
ppmCO
2
)
co2 = CO2 concentration reference in ppm
cco2 -save<cr>
Save the currently entered adjustments.
Successfully saving the adjustment clears the
calibration date (cdate command) and calibration
text (ctext command) that have been stored in the
probe. Use those commands to enter a new
calibration date and text.
cco2 -cancel<cr>
Cancel currently entered adjustments.
cco2 -reset<cr>
Clear user adjustments.
Example (show current user adjustment status; no adjustment done):
pass 1300
cco2
1.Ref. point low 0
1.Meas. point low 0
2.Ref. point high 3000
2.Meas. point high 3000
Gain : 1.0000
Offset : 0.0000
Example (perform a 1-point calibration):
1. Let the probe stabilize in the desired CO
2
concentration (here: 500 ppmCO
2
).
2. Enter the calibration commands:
pass 1300
cco2 -lo 500
OK
cco2 -save
OK
3. Enter a new calibration date and information text:
cdate 20160325
Calibration date : 20160325
ctext 500 ppm in lab
Calibrated at 500 ppm in lab
Chapter 4 – Vaisala Industrial Protocol
51