Taking time to size a valve correctly saves you time, money and yourself a headache! Picking the right size leads to performance Our goal is to find the valve with the best control for your specific application. The Cv, or coefficient of flow of the valve, plays a big part in the valve’s performance. A […]
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Big Bertha, Our Largest Panel to Date
Kele has completed its largest scale panel to date through our own custom panel shop. Those at Kele lovingly referred to “her” as “Big Bertha” during the build. Dorsett Technologies of North Carolina partnered with us for a project to automate water pump functionality for their customer. Their 96”x72” panel was custom for several reasons, and we were glad […]
Read PostRelay Fundamentals
Open an HVAC control panel, and you’re likely to find at least one relay mounted inside. Sometimes you find lots of relays! Even though relay technology has been around since the 1800s, there is still a need for relays in control panels. What components make up a relay? How are relays typically shown in wiring […]
Read PostUsing a Multimeter Series – Resistance Measuring Basics
“Resistance is futile, Buwhahaha” exclaimed the villain, rubbing his hands together in glee as our hero struggled to free himself from the ropes that bound him. Yep, we’ve all seen those Grade B movies. Maybe in that situation resistance is futile, but in the world of electronics and HVAC controls resistance (electrical resistance) is very […]
Read PostUsing a Multimeter Series – Current Measuring Basics
If you are involved in installing or troubleshooting HVAC systems, sooner or later you will be taking electrical current measurements. This tutorial will discuss the basics of how to take those current measurements. Current is measured in units of amperes, usually abbreviated to simply “amps.” When working with small currents (less than 1 amp) it […]
Read PostUsing a Multimeter Series – Voltmeter Basics
If you live in the world of HVAC design/installation, sooner or later you’re going to need to take measurements on a circuit using a voltmeter (even if it’s “not your job,” we all know how that goes). So we thought it would be a good idea to put together some basic instructions on using a […]
Read PostKele’s UL Panel Shop: Your Source for Meeting Code
Did you know that when you assemble power supplies, controllers, relays, transmitters, and all that other stuff into an enclosure for your control panel, there’s a rule in the NEC that requires your panel to be listed and labeled as an industrial control panel? Article 409 of the NEC is devoted to the installation of industrial control […]
Read PostKele Customers Have Spoken and the Water Detector Family Has Grown
Selling a service is selling the intangible. You know, as a consumer, if you are getting great service from a business. You can feel it, but sometimes it’s hard to actually define. Many times, listening to a demand, a complaint, or a request is all that’s needed to provide great service. In product management circles, […]
Read PostAre You a Victim of Contractor Compounding?
In the financial world, compounding is a good thing, but in the contracting world, it can be your enemy. See if this sad tale we constantly hear from our customers sounds familiar. Work is up, and you have a lot of parts to order. After tons of phone calls and Web searches, you locate the […]
Read PostSpecifying and Using Current Transformers for Power Measurements
Current transformers (CT) are simple and reliable devices which make it possible to make accurate measurements of alternating current flowing in a conductor without making any electrical contact. This characteristic makes the current transformer, or CT an invaluable tool for the power utility industry. The principle of operation of a CT is the sensing of the magnetomotive force around […]
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