Datcon DT9502 - Page 83

DT9502
20171205-V3
83
Example for the practical usage of the limit outputs
Task:
The limit output No.1 should control a heater, that switches
ON when the temperature goes lower than 70 °C, and
switches OFF when it goes higher than 90 °C.
The limit output No.2 should control a buzzer. The buzzer
should be signalling continuously as long as a manual
acknowledgement takes place, in those cases when the
temperature goes, at any time, lower than 50 °C, or when it
goes higher than 95 °C
The settings of the limit outputs are as follows:
operating mode=  (Switches ON, when the
temperature is lower than the low limit)
Low limit =  °C
Hysteresis of the low limit =  °C
 High limit =  °C (it’s value is indifferent)
 Hysteresis of the high limit =  °C (it’s value is
indifferent)
Alarm mode = 

Operating mode=  (Switches ON, when the
temperature does not fall between the limits.)
Low limit =  °C
Hysteresis of the low limit =  °C
 High limit =  °C
 Hysteresis of the high limit =  °C
Alarm mode = 