If the refrigeration control system is an ultra modern arrangement of solid-state boards with low voltage thermistors and transducers, don’t waste time on this article. You need to contact your dealer ...

As networked lighting control systems become more widespread and are required in a growing number of jurisdictions, installers are faced with understanding ...

This article deals with low ambient head pressure controls containing charged domes. Their function is to keep a proper condensing pressure at the metering device for proper feeding of the evaporator.

An oscillating control valve may appear to be the source of control instability and repair efforts are usually focused only there. When this fails to solve the issue, further investigation often ...

How to keep out of trouble and stay in control. Commissioning an AV control system can be a tedious and time-consuming process. It should be done systematically. As we build our “future-proof” ...

When you get the call, “The motor won’t start,” you’d best have a logical and systematic plan in place to approach the problem. “Easter egging” just doesn’t work unless you happen to be very lucky!

Every plant in the process industry most likely has several control loops that do not perform well. Although there are many factors that may negatively affect control loop performance, a few of these ...

Is there an indispensable skill that automation technicians, technologists and engineers should have? Basic troubleshooting, declares Dr. Ken Ryan, director of manufacturing automation research and ...

In the first two installments of this series, we discussed whether or not an old transmitter was even worth fixing, followed by some techniques I ve used to repair high-voltage power supplies. This ...

Flip to page 69 in the November issue of Macworld and you’ll find The Kid-Safe Mac, a parent’s guide for setting up OS X. Portions of that feature— Leopard’s Parental Controls and Beyond Parental ...