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INZ-TN2ZKJ-E
Action of peak alarm
Example
If CO concentration exceeds the alarm value, counting will begin. If the number of peaks is over
the set times per hour, a peak alarm contact output becomes closed (ON). If it is less than the set
times per hour, it is open (OFF). Since 5 times of peaks /hour is marked at
q
section from
the above graph, the peak count alarm is turned ON. Since peaks of more than 5 times per 1 hour
occur at the interval between
q
and
w
, the peak count alarm remains ON. Since at
w
,
peaks are reduced to 4 times per hour, it is turned OFF.
Like the hysteresis of the alarm setting , the hysteresis prevents possible chattering when mea-
sured gas is fluctuated near the alarm value.
* For 10 minutes after the power is turned ON, a peak alarm counting is not carried out.
Releasing peak alarm
To release the peak alarm, set the peak alarm to OFF.
Turning on the peak alarm initiates counting from 0.