
29
enabled
or
disabled
separately
at
alarm
settings.
Image above illustrates how settings of alarms works. There is set alarm limit
50 % with delay 10 sec and hysteresis 2 %. At the beginning is alarm not
activated because measured value does not exceed limit value for whole
delay time. After that is alarm activated because measured value was above
limit for longer time than is set delay. Alarm state persists till measured value
goes under limit with hysteresis (50 % - 2 % = 48 %).