Personal Ozone Monitor Manual Rev. E-2
12
Xmt Log End
To make measurements without logging data, move the cursor to
End
and click to end
the logging mode. Select
to return to the main
Menu
, and select
again to exit
the Menu and start making measurements. Note that “
” always takes you up one
level in the menu.
If the 10-s measurement mode has been selected (see Section 5.8 below), for example,
the Personal Ozone Monitor will then alternate every 5 seconds between displaying the
most recent 10-s measurement and the current value. For example, the display might
read
O3= 30.2 ppb
T=303.3 P=689.7
where the current ozone measurement is 30.2 ppb (by volume), the internal cell
temperature is 303.3 K and the internal cell pressure is 689.7 torr. Five seconds later,
this display might be followed by
O3= 31.1 ppb
19:55 23/05/16
showing that the time of the measurement is 7:55 pm and the date is 23 May, 2016. If
averaging of 1-min, 5-min, or 1-hr has been selected (see Section 5.8 below), the
above display will be replaced by
Avg O3= 24.1 ppb
19:55 23/05/16
for example, where the most recent average value of ozone computed is 24.1 ppb. At
the end of an averaging period, a new average value will be displayed along with the
internal cell temperature and internal cell pressure. For example:
O3= 25.3 ppb
T=303.5 P=688.1
5.6.
To Begin Logging Data
Select the
Dat
submenu from the main
Menu
using the Select button. The display will
now show:
Dat Menu
Xmt Log End
To start logging data, move the cursor to
Log
and click to select the logging mode.
You will then receive the prompt:
Overwrite Data?
No Yes
Warning: If you start logging, all data previously stored in the logger will be
irretrievably lost.
