COSA Xentaur COSA 707 - Manual (Page 35)

COSA Instruments USER MANUAL COSA 707
12.7 Test program
This test program is made for testing facilities that will test these analyzers with test gases and
don’t need to make any modifications.
In this program you will only see measured values and no calculated values at all.
12.8 CO ambient
In some countries the measuring program CO environment is demanded. The objective of this
measuring program is the proof of CO concentration in the environment of the measuring point.
In the case of the country setting in the main menue the menu option is indicated „CO ambient“.
F3
2
3
F3
2
3
The current CO value (zeroing) as a check is indicated. (This value must be approx. 0 ppm!)
The CO ambient measurement starts through pressing the key F3 at the measuring point.
The current CO (ambient) and CO (peak) values will be indicated.
The measuring result will be indicated by pressing the F3 key. This can be printed out by the
printer-key.
With the ESC key one reaches back in the main menu.
Before that CO ambient measurement a zeroing at fresh
air (outside of the environment of the measuring
point) must be taken.
Start thereafter the function „CO ambient “at fresh
air with the OK key.