How does the rainwater level control relay work?
In a dry condition, the relay contact remains in position 7-4. When the probe is flooded with liquid (i.e. the probe electrodes are short-circuited), the relay contact is switched to position 7-8. After the liquid level drops (the probe electrodes open), the relay contact returns to position 7-4.
How to connect the probe
The design of the probe makes it possible to install the probe on a flat horizontal base, for example on the floor in a room where hydro-valves and flow pipes are installed or in a laundry room. Thanks to such a design of the probe, any failure or flooding of a room with a liquid can be quickly detected as well as electric circuits can be simultaneously switched off or the sound or light signalling system (alarm system) can be actuated. The probe cable can be extended to 100m.
A maximum of 10 probes can be connected in parallel connection or in series connection to 5-6 output:
* series connection – for a dependant system that controls the level of liquid in many points a simultaneous short-circuit of all sensors connected must occur in order to activate the relay.
* parallel connection – for an alternative system that controls the level of liquid in many points – a short-circuit of at least one of the sensors connected must occur.
In case of a series connection, the sensitivity of the sensors is reduced (conductivity is reduced).
Attention!
Output 5-6 galvanic separated.
