PROGRAMMING OF TOXIRAE
4 - 17
4.5.1 Set TWA Alarm Limit
1. The first sub-menu item in Table 4.3 is to set the TWA
alarm limit.
-Display shows "TWA" and "+ - 0010.0" with the left-
most digit flashing, where "0010.0" is the previously
stored TWA alarm limit.
2. To modify this limit, starting from the left-most digit,
use the
[Y/+]
or
[N/-]
key to change the digit value and
press
[MODE]
key momentarily to advance to next
digit. The flashing digit will move on to next digit to
its right. Repeat this process until all 4 digits of the
new TWA alarm limit are entered. Press and hold the
[MODE]
key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the
[Y/+]
key to accept the new
value and move to next sub-menu. Press the
[N/-]
key
to discard the changes.
3.
To preserve the previously stored TWA alarm limit,
press
and hold the
[MODE]
key for 1 second, the unit
will exit data entry mode and move to the next sub-
menu option.
