Sprinkler system controllers are programmed to go on and on a certain day and at a certain time. The controller does not need to know if outside is sunny and dry, or it rains. For this reason, any lawn sprinkler system should have a rain sensor.
The rain sensor determines whether or not enough rainfall has occurred, skip an irrigation cycle. There are three basic types of rain sensors. All have the same goal: to maintain the system over-irrigationGrass or your garden. How does he do it? The electrical connection between the sensor and the sprinkler system controller is interrupted when a certain amount of rain triggers the device. The sensor breaks the electrical connection so that current can not flow, either the sprinkler valves or to start a pump (if your system is) a well without a pressure tank.
One type is the connection by weighing the water in a cup for collecting rainfall. The problem with this is thatLeaves, sticks, or the occasional lizard will find its way into the collection cup, then turn off the system.
The next type uses electrodes to determine how much water is in the collection cup. This type of rain sensor device also has a system problem of collecting things that the precipitation in the collection cup.
The most common type of rain sensor is used by professionals, the disk expansion. This type of sensor does not use a cup for collecting, but precipitationCauses cork disks to expand. This device uses a pressure switch to break the electrical connection. These can be adjusted in increments of ¼ "to the rain fall setting. This adjustment is usually set to turn the unit off sprinklers after ½" of rain has fallen.
The most important aspect of installing a rain sensor is where to put it. It should be freely installed by trees in an area, roof hangs, or anything else, that rain is blocked from getting to know the sensor. IfThis is a sensor cable which is usually placed near the sprinkler controller. The wires should be within the valve control cables are connected. This allows for easier troubleshooting the electrical system, the sensor can be easily separated.
In recent years, the FM wireless rain sensors have become very popular. Although they are more expensive than wired devices, ease of installation and placement options offset the increased costs. Most wireless devices are equipped withBypass switch on the device. Some digital controllers also offer by-pass options for both wired and wireless sensors rain.
No matter what type of rain sensor, which offer to choose, all rain sensors has many advantages over not adding this detector to your automatic irrigation system. Some of the immediate and long-term benefits are:
• save money. If you pay for the management of the city or to spend on water for electricity, a pump, the money you save in time, more thanpay for a rain sensor.
• life cycle Extend sprinkler system. Irrigation systems have moving parts. If parts of the system that are less frequently used (or are) in the rainy season is longer.
• Protection of water resources. By limiting the race through the use of your irrigation system, rain sensor, reducing the excess water off claims that the municipality of chemical fertilizers and pesticides in our water supply.
• Conserve water. Less water is wasted, if the water unless additionalis necessary for your lawn and your garden.
How much money can you save with a rain sensor device?
This is the source of water (city vary, recover back or good) and where you live (cost of water, electricity) climate installments. Here's an example that shows the benefits listed above:
Seminole County, Florida.
System description
• Designed to irrigate quarter acres of lawns and then programmed to run from ½ "of water at every system startup.
• L 'Hours would be 6788 gallons per irrigation cycle thereof.
• The payroll system (on City Water) $ 2.30 per thousand liters.
• Each time a rain sensor sprinkler cycle interrupt, would save € 15.61
According to a recent study in Florida, on average, the use of a rain sensor device 45% savings in water for single family homes water.
The next time you see an irrigation system that is running in the rain, now you know, that should not be. Rain Sensorare cost effective solutions for the conservation of our water, protect our water resources, and save money.
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