CO2-Calibration
6.9
Sampling Rate
Fig. 19: Setting the sampling rate (hours)
Fig. 20: Setting the sampling rate (sec-
onds)
7
CO
-Calibration
2
The meter is calibrated at standard 400 ppm CO
to do manual calibration regularly and especially before using it for the first time to main-
tain good accuracy. The calibration will last about 30 minutes.
When accuracy becomes a concern after a long time usage or other special conditions,
return to dealers for standard calibration.
WARNING!
Do not calibrate the meter in the air with unknown CO
as 400 ppm and this fact leads to inaccurate measurements.
50
In normal mode press and hold the SET key
for three seconds to enter P1.0 mode.
Press LOG/▲ four times to enter P 5.0 mode
for setting the sampling rate of data logging,
see Fig. 19.
NOTE!
The range is from 1 second to 4 hours 59 minutes
and 59 seconds.
Press SET to enter the 5.1 mode with the hour
digits blinking. To change the setting press
LOG/▲ or MIN/MAX▼.
Press SET to enter P5.2 mode to set the min-
utes and after that enter the P5.3 mode to set
the seconds, see Fig. 20. To change the set-
ting press LOG/▲ or MIN/MAX▼.
Then press SET to save the setting or press
ESC without saving and return to P5.0 mode.
concentration in factory. It is suggested
2
2
level. Otherwise, it will be taken