How-to: 2 Point Operation of an Open Collector Switch Output

For Gill level sensors 4223 / 7010 / 7014 

In this example, the switch point has been set to ‘Full Alarm’. By setting the switch point to 90%

with an 80% hysteresis, the switch will come on at 90% and switch off at 10%.

In this mode of operation, the sensor can provide a signal to start and stop a pump in closed loop operation, for example.