Automatic Co 2 -Calibration - Wohler IQ 300 Bedienungsanleitung

Table des matières
9.6 Automatic CO
Calibration
Fig. 16: ABC-Calibration (Auto Back-
ground Calibration)
50
-
The Automatic Background Calibration (ABC)
2
eliminates the zero drift of the infrared sensor.
The ABC function is always ON when turning on
the meter.
ABC is to calibrate the meter at the minimum CO
reading detected during 7.5 days continuous mon-
itoring (power on). It is supposed that in the venti-
lating area there is fresh air with CO
400 ppm during a period of time.
WARNING!
For the described reasons, the Automatic Back-
ground Calibration cannot be done in close area
with higher CO
dows shut.
Default setting „ON" is flashing.
Press the ▲-key to select "on" or "off".
•
Confirm your selection with the ●-key or the Ξ-
•
key.
• You will then automatically enter the menu for
manual calibration.
level such as places with win-
2
2
level around
2