BIA-DPC1 rev 4
Page 11
In event of high risk of electrical storms (lightning) or when liquid medium in sump, well or tank is very
dirty, it is recommended to use float switches.
2.5 Electrical connections for DRAINAGE applications
2.5.1 Drainage by liquid level control through float switches or probes
Note: for 4 float switch installation connect float switch A (pump off) to terminals 1 and 3, float switch B (1
st
pump on) to terminals 1 and 5, float switch C (2
nd
pump on) to terminals 2 and 4 and float switch D (alarm) to
terminals 2 and 6.