Laserfiche WebLink
<br />i <br /> <br />) <br />\ <br /> <br />According to information provided by the manufacturer the costs for the system will be <br />approximately $150 per 12 station controller and $60 per year for signal access. <br />Installation is estimated at $75 per unit. <br /> <br />. <br /> <br />Advantages to the ET Signal Controller <br /> <br />Assuming that the system works as designed, the ET Signal Controller offers several <br />major advantages, which, in our opinion, make it worth careful testing and evaluation. <br /> <br />Bring Order to the Chaos of I rrigation Applications <br /> <br />In the Front Range of Colorado somewhere between 50 and 60% of municipal water is <br />applied to landscapes. More importantly, during the peak summer periods up to 80% of <br />water is devoted to irrigation. Much of this water is being wasted and the waste could be <br />eliminated by providing a reliable way to continuously program the systems to match ET. <br />While not all customers over-irrigate, many do. This is especially true for larger homes <br />and systems in multi-family, commercial, and institutional users. Many streets and parks <br />system fall into the over use category. Estimates of savings vary, but it is generally <br />agreed that savings would be massive if the right customers were identified and brought <br />into the system. <br /> <br />The Costs are Right <br /> <br />Ifthe costs estimated by the manufacturer are correct than this will be a very economical <br />system to operate. Even assuming that the customer pays the entire costs it should easily <br />pay for itself in one year. Ifutilities pay a rebate, similar to the ULF toilet rebate; or even <br />give the units away, they will be even more affordable. <br /> <br />e <br /> <br />System Should be Simple to Install <br /> <br />The lack of wires should make the ET Signal Controller very simple to install. Both <br />sensor systems and the cable TV system required on-site wiring. This takes time and <br />money and creates uncertainty for planning since it is impossible to know for any site <br />how much trouble will be required to install the wires. The ET Signal Controlled is <br />installed at the site in place of the existing clock. The zone and power wires are <br />disconnected from the old clock and installed on the new unit. Then each zone is <br />programmed with a few simple to determine parameters and the job is done. <br /> <br />Ifproblems develop with the individual units in the field they are solved by simply <br />replacing the troublesome units with new ones. This is far simpler than having to test <br />sensors, field wiring etc. <br /> <br />Flexibility is Possible <br /> <br />The system uses addressable codes for groups of controllers. It is then possible to <br />establish groups of interruptible supply units which can be placed on survival rations <br />during peaking or supply emergencies. General cut-backs can also be performed when <br />necessary. During spring run-off, when there may be excess capacity in the water system <br />the ET controllers may actually be directed to over-irrigate enough to fully saturate the <br />soil profiles and in effect place water into storage in the soil. <br /> <br />. <br /> <br />2 <br />