Category: Smart Switches

Posted on May 10, 2021 by Julian Yeo

How to wire a SPDT mechanical switch

Determining the wiring configuration (Normally Open or Normally Close) to a SPDT mechanical switch can seem confusing at times. However, the concept behind it is relatively straightforward. Wiring arrangement depends on 2 things: Whether the application is on the rise (i.e., trip above setpoint) or on the fall (i.e., trip below setpoint) Whether the load …

Read more »

Posted on April 26, 2021 by David Bonyuet

Switch information for instrumentation engineers

The worst nightmare for instrumentation engineers and technicians is a call due to an unexpected shutdown. Many plants are complex systems of highly technical equipment and machinery intertwined to accomplish their production function.  Regardless of whichever problem occurs, the goal for the day is to get back to business as soon as possible, which includes …

Read more »
mechanical switch

Posted on March 29, 2021 by Mark McCabe

Mechanical Switch vs. Electronic Switch: Savings upgrade

Many times, when specifying replacement switches I&E technicians may feel most comfortable replacing “like-with-like”, and stick with a mechanical switch. Users may be acclimated toward electromechanical switch maintenance and may not be fully  aware of the hidden maintenance costs vs. those associated with an electronic switch serving the same function. Electromechanical switches are built from …

Read more »

Posted on February 11, 2021 by Joseph Mancini

Advantages of a Three-in-One Field Safety Transmitter

A typical Safety Instrumented System (SIS) consists of a Safety Integrity Level (SIL)-certified sensor, logic solver, and final element. These SIS systems can be complex, including multiple components such as a pressure or temperature transmitter, safety relay, programmable logic controller (PLC).  Also, it can include a trip amplifier; and requires intensive wiring and programming. See …

Read more »
electronic switch

Posted on January 21, 2021 by David Bonyuet

A Field Safety Transmitter on a budget

The ONE Series Field Safety Transmitter is a complete safety instrumented system (SIS) all together in a single package. The ONE Series Field Safety Transmitter complies with the IEC 61511, the technical standard that ensures the safety of industrial processes using instrumentation.  The One Series Field Safety Transmitter is Exida certified.  It has a Safe …

Read more »
ONE series

Posted on January 7, 2021 by David Bonyuet

Benefits of an electronic switch for instrumentation engineers

The ONE Series electronic switch was designed to work with the leakage current from process controllers, and therefore it is a specialized switch like no other: it brings the benefits of electronic switches and smart sensors, with no extra penalty on additional power wiring. The final user can just replace their mechanical switch by the …

Read more »
one series

Posted on December 17, 2020 by Mark McCabe

10 reasons to choose One Series over a mechanical switch

The One Series is our smart electronic switch with a variety of different models including low capacity and high capacity switch outputs, transmitter options, and a variety of other useful features. More information can be found in our technical brochure for the One Series models. In order to summarize some of the benefits of using …

Read more »

Posted on November 12, 2020 by David Bonyuet

One Series: Smart switch or SIL transmitter?

No matter whether you are in an oil rig or in a manufacturing line, the need to keep the plant up and running is paramount.  Is it more valuable to stick upgrade to a smart electronic switch, or install a SIL rated transmitter? Many industrial plants use our standard ‘blue’ product line, the One Series …

Read more »

Posted on October 1, 2020 by Chan Reis

Why would I use a switch over a transmitter?

Switches are no longer the blind, “dumb” electromechanical devices of a generation ago. Signals from sensors in critical safety loops (e.g. protecting against high temperature or pressure) are typically integrated with the plant control system via a discrete or analog input channel.  A switch provides a binary (on/off) input, while transmitters provide a continuous (4 …

Read more »
SIL in manufacturing

Posted on September 17, 2020 by Mark McCabe

What is SIL in manufacturing?

When looking for different instruments to place in your application, it is always important to understand the safety requirements of your environment. You will often hear of the requirement to use an explosion-proof or an intrinsically safe device. Another requirement often thrown into the ring is the term “SIL”, an acronym for “Safety Integrity level”. …

Read more »
Ask an Expert

Ask An Expert

Business hours are M-F, 8-4:30 EST.
We strive to respond in less than 24 hours.
Please contact us at +1 617 926 1000 for immediate assistance.

United Electric Controls will not send you unwanted email or provide your email address to third parties