What are the different types of rain sensor?
Rain sensors are available in three different designs, including water weight, electrical conductivity and types of expansion discs. This device detects rain events and disconnects the energy of irrigation systems to save water; House owners and businesses can use a rain sensor, so the plants are not too connected and the drain is minimized. In addition, each type of rain sensor can be purchased in a hard cable or wireless version depending on the desires and consumer budget. When the bowl is filled with rainwater to a particular set point, the rain sensor triggers the control to turn off the water valve. The irrigation system remains non -functional until the water in the bowl naturally evaporates; This evaporation coincides with the soil drying time. Once the water has been distracted in the bowl, the irrigation system automatically returns for the normal irrigation plan.
electrical conductivity uses the same bowl of rainwater collection; However, the irrigation system is lowered to the OFF position when two electrodes contactThey are gathered. These electrodes are an open circuit in dry weather. Once the water reaches the preset electrode level in the bowl, the circuit closes and effectively closes the irrigation system down. The irrigation system returns to its normal operations as soon as the electrodes do not feel more water.
One of the most popular types of rain sensors in a model expansion model. The cork disc is located in protective housing; When the rain falls, the disc absorbs part of the water. As a result, the disk increases from water absorption and triggers the irrigation system to turn off. As with a collection dish, the disk must fall off most of its water before the system restarts its operation.
Most IRRIGATION SYSTEMS used to control the irrigation plan are hard connected to the power source. Consumers can buy a hard rain sensor and connect it to the energy system. Are available newer withoutwire sensors that use radio waves from a nearby receiver to control the irrigation system; However, these devices are much more expensive than the basic type of hard cables.
Many irrigation experts prefer the expansion disk sensor with the rain. Both collection food techniques have the disadvantage of collecting debris. These meals must be regularly maintained and cleaned because the accumulation of debris can easily start the type of water sensor to turn off the system.