Level Relay

RND and RNP Level Relay
Plastic housing with 11-pin circular plug.
Indication of output relay connected (1-3), via green LED.
Indication of water failure in the well, using a red LED.
Relay indication with supply voltage (2-10), via yellow LED.
Front indication of the relay's nominal supply voltage.
Side indication of the connection diagram.
Side indication of the operating diagram.

Operation
The output relay arms (1-3). whenever the water reaches the max level. (5), only disarming (1-4) if it drops beyond the min level. (6).

If you only want to control one level, eliminate the probe connected to pin 5 and connect it to pin 7 via a "shunt". In this case the relay activates (1-3). whenever water is in contact with the probe connected to pin 6.

Emptying Control
Control of electric pumps used in wells and boreholes, maximum level alarms.

Filling Control
Control of electric pumps used to fill tanks, minimum level alarms.