PROGRAMMING THE AREARAE
4-44
4.8.4 Change Dilution Ratio
You can connect an optional dilution fitting to the AreaRAE’s
gas inlet port to dilute the gas sample. Enter a dilution ratio
(from 1 to 10) from the programming menu so that the reading
can be compensated to show the actual concentration of the
gas sample with the dilution fitting:
1. “Change Dilution Ratio?” is the third submenu item. Press
[Y/+], and the display shows the current dilution ratio:
“Dilution Ratio = xx” with the left-most digit flashing.
2. Press the [Y/+] or [N/-] to increase or decrease the value of
the digit. Press [MODE] momentarily to advance to the
next digit. The flashing digit moves to the next digit to the
right. Repeat this process until both digits of the new
dilution ratio are entered.
3. Press and hold [MODE] for 1 second to exit the data entry
mode and move to the next submenu.
4. If there is any change to the existing dilution ratio, the
display shows “Save?” Press [Y/+] to accept the new ratio
and exit the submenu. Press [N/-] to discard the changes
and move to the next submenu.
