Yokogawa IR400 - Manual (Page 64)

6 - 25
IM 11G02N01-01E
6.6 Peak alarm setting
When the peak number of times CO concentration exceeds the upper limit value during measure-
ment exceeds the set number, an alarm is provided.
The peak alarm and this setting screen appear only when an option is added.
1. Press the
MODE
key in the Measurement
mode, and the User mode appears.
2. Point the cursor to “Setting of Peak
Alarm” by pressing the
or key.
Press the
ENT
key.
3. In the “Peak Alarm Setting” item selec-
tion screen that appears, point the cursor
to any item you want to set by pressing
the
or key. Press the
ENT
key.
4. Then, enter numeric values and perform
the setting.
Entering the numeric values or setting the
items should be carried out by using the
or
key.
After setting, press the
ENT
key, and the set
values are saved.
( )
ENT
End of Peak Alarm Setting
MODE
( )
ENT
• Peak Alarm : ON/OFF of peak alarm
• Alarm Value : If measuring value exceeds the
set alarm value, a peak counter counts
1 time.
• Alarm Count : When a peak in excess of the setting
time occurs, a peak count alarm output
is provided.
• Hysteresis : To prevent possible chattering
when the measuring value may exceed
the set peak concentration by only
1 time, the peak count has an
allowance in the hysteresis width.
Description of setting items
( )
ENT