Single state liquid level control relay PZ-828 RC F&F

Operation
In the dry state, the relay contact remains in the 7-4 position. When the probe is flooded with liquid (i.e., the probe electrodes are short-circuited), the relay contact is switched to the 7-8 position. When the liquid level drops (the probe electrodes are opened), the relay contact returns to the 7-4 position.

Method of connecting the probe
The design of the probe allows it to be mounted on a flat horizontal surface, for example, on the floor in a room with hydro-valves, flow pipes or in a laundry room. This makes it possible to quickly detect a malfunction (flooding of the room with liquid) with simultaneous shutdown of electrical circuits or activation of sound or light signaling (alarm).

The probe cable can be extended up to 100 m.

Up to 10 probes can be connected under input 5-6 - in series or in parallel:
* in series - for a dependent multi-point fluid level control system - all connected probes must be short-circuited simultaneously for the relay to operate



* in parallel - for an alternative multi-point fluid level control system - at least one, any of the connected sensors must be short-circuited. When connected in series, the sensitivity of the sensors is reduced (conductivity is reduced).

Note:
Terminals 5-6 are separated from the network.