| 37 nzdairy DAIRY PEOPLE » Dr Ian Scott: Oraka Deer Park (07) 883 7677 • www.laserelectricalputaruru.co.nz How do you manage and control your Effluent System? How do you manage and control your Milking Plant and Vat Wash System? Have you ever wanted to have full control of your effluent pumping equipment locally and remotely, wanted fail safe security in case of burst pipe or no movement at irrigator as well as offering placement data on Google Maps, wanted to have the flexibility to set flow rates, pumped quantity or pumping times? Call Laser Electrical • A Laser Electrical Representative will call around to discuss your application. • A tailored control solution can be created • Preliminary costings can be provided. • Ascertain loading requirements for new installations and offer solutions around this. "Control your effluent system with our integrated automation solution" "Control your plant and Vat Wash system with our integrated automation solution" Have you ever wanted to have your Milking Plant and Vat Wash System fully automated and free up valuable time to do the things that matter? Pleased to be involved with Ian Scott on the Oraka Deer Park project Based in Putaruru Laser Electrical provide electrical services big and small for a broad customer base, and their rural customers are a big part of that. Helping with the upgrade and modernisation of effluent systems is an increasing part of their workload and the work they did alongside Klip Tank to upgrade and modernise Ian Scott’s effluent system is a typical example. He needed a bigger system to deal with his dairy effluent and Laser Electrical did the design and work for the electrical upgrade, which included more pumping capacity as well as converting the system from manual to a fully automated one that could be controlled remotely from the cowshed using a Human Machine Interface screen (HMI), or a mobile phone. The touch screen has user-friendly icons and a keypad allowing the user to set a timer for the pump, before switching it on manually, secure in the knowledge that it will turn itself off when time is up. The wireless technology relays information between the HMI in the cowshed and the pumping station 200 metres away via a Programmable Logic Controller (PLC), giving the client remote control but also the security of knowing that any faults will be notified. If for example the pump cuts out on overload for some reason while the user is out on the farm the wireless technology passes that message back to the HMI (or cellphone). The new effluent tank was built on higher ground so the existing tank stayed in use, continuing to collect the gravity fed effluent from the cowshed, before pumping it up to the new tank and through the new Pluck separator system. Laser Electrical set up an interface between the Laser Electrical PLC and Separator PLC supplied by Plucks so that the fully automated system starts pumping whenever the primary tank is full, with the separator starting at the same time as the pump, thus ensuring that any extraneous solids picked up from the cowshed such as bits of cowtail or wood chips are screened out. Laser Electrical designed the system with inbuilt safety features installed to shut the system down if the pressure gets too high (pressure transducers); to measure how many cubic litres are being pumped to the farm (flow metres); and with automated control valves, all connected through the PLC. The same 22kw pump does both the aerating of the effluent through the Klip Jets and the pumping of oxygenated effluent to the farm so two automated motorised valves were required to allow the pump to switch between functions. The farmer can use the HMI Screen at the cowshed to close off the Aeration valve and switch the system over to feed the farm’s irrigation system instead. Effluent system electrical upgrade Dr Ian Scott employs a contract milker on the dairy side and part-time calf feeder, while the deer and cropping operation employs three other staff.
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