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12 -
5-3. Setting of alarm
(1) Higher limit alarm setting
•
The higher limit alarm set screen is shown in case where alarm option is added and the higher limit alarm of the alarm type select digit on mode 2
screen is selected.
•
Higher limit deviation value alarm is output for measured value to be greater than set value + alarm set value.
•
For higher limit deviation value alarm, if set value + alarm set value exceeds the higher limit of the measuring range, the action point is the higher
limit of the measuring range.
•
Higher limit absolute value alarm outputs alarm signal for the measured value exceeds the alarm set value.
•
Higher limit absolute value alarm is set on any value within the measuring range.
•
Higher limit alarm set screen is shown by pressing the
key on AT action control screen.
•
With the
or
key, value at which the alarm signal should be output is selected and registered with
key.
•
Operation of the
or
key is identical with set value setting.
Example 1: In case of setting the alarm action point at 600˚C for higher limit deviation value alarm. Set value is 500˚C.
As 500˚C+X˚C=600˚C, X=600-500=100˚C should be set.
Example 2: In case of setting the alarm action point at 600˚C for higher limit absolute value alarm,
the set point is action point.
(2) Lower limit alarm setting
•
The lower limit alarm set screen is shown in case where alarm option is added and the lower limit alarm of the alarm type select digit on mode 2
screen is selected.
•
Lower limit deviation value alarm is output for measured value to be less than set value + (alarm set value).
•
For lower limit deviation value alarm, if set value + (alarm set value) is less than the lower limit of the measuring range, the action point is lower
limit of the measuring range.
•
Lower limit absolute value alarm outputs alarm signal for the measured value is less than the alarm set value.
•
Lower limit absolute value alarm is set on any value within the measuring range.
•
Lower limit alarm set screen is shown by pressing the
key on higher limit alarm set screen.
•
With the
or
key, value at which the alarm signal should be output is selected and registered with
key.
•
Operation of the
or
key is identical with higher limit alarm setting.
Example 1: In case of setting the alarm action point at 300˚C for lower limit deviation value alarm,
set value is 500˚C.
As 500˚C+(X˚C)=300˚C, X=300-500=-200˚C should be set.
Example 2: In case of setting the alarm action point at 300˚C for lower limit absolute value alarm,
the set point is action point.
0-2 higher limit deviation value alarm set screen
point flashing
point flashing
point goes off to
indicate registration
key
key
key
one by one
continuing
0-2 higher limit alarm set screen
point flashing
point flashing
point goes off to
indicate registration
key
key
key
one by one
continuing
0-3 lower limit deviation value alarm set screen
point flashing
point flashing
point goes off to
indicate registration
key
key
key
one by one
continuing
0-3 lower limit alarm set screen
point flashing
point flashing
point goes off to
indicate registration
key
key
key
one by one
continuing
