Once the cooling water stops flowing, the water flow switch will send an alarm signal to the microcomputer control panel, Issued an alarm sound, to avoid the occurrence of the accident.
The installation position in the unit side of the water, the principle is when the cooling water system failure, if the water stops, it will lead to unit temperature rise, affecting the normal operation of the unit, serious may lead to burn the unit. Normally, a water flow switch will be installed in the pipeline of the cooling water system to monitor the flow of cooling water in real time.
The two terminals of the water flow switch are connected to each other.
????? Terminals need that meter test, four terminals are two normally open is normally closed, generally connected to the normally closed.
