Rae MiniRAE Plus PGM-76, Руководство по эксплуатации и обслуживанию

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SECTION 5 PROGRAMMING IN SURVEY MODE
5 - 11
5.9 Set Low Alarm Limit
In Survey Mode, users are allowed to define a low alarm limit.
When gas concentration is bellow this limit, the alarm will not be
activated. The minimum value for this low limit is zero.
1. Set "low alarm limit" option is the 8th menu option in Table
5.1.
- Display shows "LA xxx.x" with the left-
most digit flashing, where "xxx.x " is
the previously stored low alarm limit.
2. To modify this limit, starting from the left-most digit, use
[up] or [down] arrow key to change the digit value and
[enter] key to confirm the digit, the flashing digit will then
move on to next digit to its right. Repeat this process until
all 4 digits of the new low alarm limit are entered.
Note: if
the low alarm limit is higher then the high alarm limit, the
data entry will be aborted and the previously stored low
alarm limit will be restored.
3. To preserve the previously stored low alarm limit, press
[menu] key at step 1 or in the middle of step 2, the unit will
abort the low alarm limit entry and move to the next menu
option.