Dear Valued Customer, I would like to take this opportunity to thank you for your business. This year we celebrate 30 years servicing the needs of the building automation products industry and we take great pride in our achievements by offering a wide selection of products from almost 300 manufacturers. 30 years ago Kele’s founders […]
Read PostAuthor: Kele Inc
Humidity Sensors in Distress
Let’s start with a riddle: Q: They’re dirty, they’re annoying, they cause all sorts of trouble, they make everyone uncomfortable, and they’re hard as heck to catch; but, they’re not the pesky flies that buzz around one’s picnic potato salad? What are they? A: Humidity sensors abused by hostile environments. You’d be surprised where we […]
Read PostWhat Are Power System VARs?
Most people involved in building automation are familiar with kW, which is the rate at which a building is consuming energy from the power company. But there is another power system parameter known as VAR/kVAR which is less well understood. In this article we will attempt to dispel some of the VAR mystery. The term […]
Read PostPower Monitoring – Harness the Power!
Update!! The ENG-ETH Ethernet Communication Module for endicator is now available. It reads data from the endicator™ main processor, formats the data, and transmits it over Ethernet using BACnet IP, Ethernet IP, and Modbus TCP protocols. The module also hosts a website where meter status can be viewed using any browser that supports Adobe Flash. […]
Read PostAC to DC – Linear Versus Switch-Mode Power Supplies
For years, Kele has provided dependable, quality 24 VDC power supplies like the DCP-1.5-W, DCPA-1.2, DCP-250, PW2, and the SLS Series. All of these DC power supplies are “linear” power supplies. Another type of DC power supply gaining popularity with building automation and temperature control contractors is called a “switch-mode” power supply (PS6R Series). While both […]
Read PostDoes Your Building Own its Energy Destiny?
Those of you who have read some of my past blogs have probably gathered by now that I’m fascinated by the intersection of building automation, energy and the coming Internet of Things (IoT) revolution. What captivates me most about this collision of previously tangentially related and/or non-existent industries? The monumental shift of perception I believe […]
Read PostBelimo Zip Economizer – Time Saver!
The Belimo Zip Economizer is really a cool product that captured my attention. If you are or were in the field like I was, I’m sure you’ve struggled just as I did with the “Black Box” style of economizer modules. They could be difficult to commission at start-up if the OSA (outside air) was not […]
Read PostOur Coming Transactive Energy Economy
While scanning through the building automation and energy industry news recently I came across a term I hadn’t heard before. The term, Transactive Energy, piqued my interest and upon reading further I found this article from The Energy Collective website to be excellent in succinctly describing where I believe our electricity market is headed; and the implications […]
Read PostWho’s afraid of the IoT (Internet of Things)?
A few weeks back I blogged about the IoT (Internet of Things) and its historical ties to and implications for the building automation industry. Given factors I discussed there and in another blog where I talked about the democratization of building controls, the intelligence of building automation systems is expected to grow exponentially in the coming years, creating […]
Read PostSpring Return Fail Safe Electric Motors
Consideration must be taken when designing a control system as to what happens when controllers fail or if there is a loss of power. This is referred to as fail-safe or spring return. Devices, like valves and dampers, can be made to fail in a position that provides a minimum amount of comfort control or, […]
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