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United Electric Controls
A Message From The CEO
United Electric Controls has more than 80 years of proven experience providing rugged pressure and temperature electromechanical and electronic switches to Chemical & Petrochemical, Power, Water & Wastewater and Oil & Gas industries, as well as many other challenging OEM applications.
UE pressure switches, pressure transducers and pressure transmitters, temperature switches and temperature sensors are designed for rugged, industrial environments.
To learn about additional industry solutions please visit our Viewpoints/Whitepapers section.
United Electric Controls has more than 150 distributors worldwide. Please visit our distributor locator page to find a distributor near you.
Three Manufacturing Divisions
Lean manufacturing for maximum productivity
Operational excellence (OpX) reduces waste
One-piece-flow for optimum manufacturing efficiency
Technical Sales: 617.923.6977
United Electric Controls Company
180 Dexter Ave
Watertown, MA 02472-4200
Dec. 12-13, 2017 - CH4 Connections, The Methane Emissions Conference,
Fort Collins, CO, USA
January 23-25, 2018 - Energy Generation Conference, Bismark, ND, USA
January 23-25, 2018 - TAMU Instrumentation Symposium, College Station, TX, USA
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RTD Temperature Sensors | United Electric Controls
Resistance Temperature Detection
Terminal Head, Sanitary Process Connection, Sheath, Heat Trace RTD Styles
Resistance Temperature Detectors (RTD's) are stable and have a fairly wide temperature range, but are not as rugged and inexpensive as thermocouples. Since they require the use of electric current to make measurements, RTD's are subject to inaccuracies from self-heating.
An RTD capitalizes on the fact that the electrical resistance of a material changes as its temperature changes. RTD's rely on the resistance change in a metal. The resistance will rise more or less linearly with temperature.
Traditionally, RTD's use a length of conductor (platinum, nickel iron or copper) wound around an insulator. Newer styles use a thin film of the conductor deposited on a ceramic substrate. RTD's are used to measure temperatures from -196° to 482° C (-320° to 900° F)
Terminal Head Styles
Terminal Head Styles 45 and 77
Sanitary Process Styles
Sheath Style 14
Heat Trace RTD's
Heat Trace RTD's
Special Process Mounting Styles
Sensor Products for our Process & Utility Customers
We have a broad selection of standard temperature sensors that are designed for general industrial use. From small
fast-response designs for engine testing, to 20’ long multi-point assemblies for reactors. If you can sketch it, we
can probably build it!
• Heat recovery steam generator (HRSG)
• Boiler tubes
• Diesel engine
• Turbine/reactor temperature sensing
Heat Trace RTD's
When you choose our heat trace RTDs, you simplify installation and reduce your maintenance
expenses. Designed for use in any pipe or surface temperature measuring application, these sensors
NEMA 4 or explosion-proof heads
Heat transfer pad with excellent temperature response
Rugged stainless steel sheaths for excellent mechanical protection
Replaceable element design for simplified RTD replacement — to replace a faulty element, you simply remove the head
cover, disconnect the leads and remove the flexible element. You then insert the new element and reconnect the leads.
Your process is up and running in minutes.
Options include dual RTD sensors, thermocouple sensors and a variety of weld pad and head styles
Gas Measurement Sensor
Can't find what you are looking for in our standard products?
We would be happy to help you with a design to match your application!
Contact us today at 617.923.6966.
Applied Sensor Technologies, a division of United Electric Controls, is a major manufacturer of thermocouple, RTD, thermistor and other temperature sensor assemblies. ISO 9001:2000 certified and a leading practitioner of JIT and Lean Manufacturing methods, Applied Sensor Technologies has expertise in a wide variety of process applications, from the blast furnace to the blast freezer; from chemical processing to food processing. Please visit our website: www.appliedsensortech.com, or give us a call at 617-923-6966!
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