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Temperature Controller

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Why do Electric SCR Power Controls make sense for Electric Heat

SCR Power Controls and Electric Heat For the past 50 years, analog-based designs have served industry well. However, increasing demand for design flexibility, improved reliability/repeatability and lower costs have made the intelligent SCR power supply an ideal solution for electric furnace users seeking to gain competitive advantage. Intelligent power supplies have many advantages over analog [...]

By | October 21st, 2019|Eurtherm, Process Control, Temperature Controller|Comments Off on Why do Electric SCR Power Controls make sense for Electric Heat

Cold Weather Planning

If you weren't from Wisconsin, you might find it hard to believe that it is snowing outside, and will again on Sunday. Here is some helpful advice on cold weather planning. It's never too soon to start getting prepared. Anticipating freezing conditions and Cold Weather Planning to protect buildings, equipment, and grounds against freeze damage [...]

By | April 11th, 2019|Temperature Controller|Comments Off on Cold Weather Planning

Selecting a Regenerative Blower for Process Heater Applications

Selecting a Regenerative Blower for Process Heater Applications Regenerative blowers are portable, low-pressure air sources that are ideal for use with many Tutco SureHeat Air Heaters. They provide inexpensive, clean, oil free air, and can be easily mounted on equipment. A blower must be able to provide your desired amount of flow even with the restrictions caused by the heater, plumbing, and manifolding. These restrictions can reduce the amount of flow to your process, and, if severe enough, can cause the blower motor to overheat and become damaged. Selecting the right blower is easy. Just follow the simple steps below: Step 1: Determine Heater Back Pressure The amount of back pressure caused by the heater is found by looking at the dotted lines on the heater Performance Curve found in the Operating Instructions. The amount of back pressure in PSI or Inches of Water (27.7 inches of Water = 1 P.S.I.) depends on the heater operating temperature and desired airflow, Standard Cubic Feet per Hour (SCFH). Step 2: Determine Blower Capability Blower manufacturers provide performance curves for various size blowers. The maximum output of the blower is based on zero exit restrictions (zero pressure). In the example below, this is a 27 CFM-rated blower. Note how the blower output (CFM) decreases with increasing back pressure (Inches of Water). Also note that blower output is lower at 50 Hz operation. Using the blower curve, verify that the blower chosen can generate sufficient flow (for your process), for your expected back pressure. Remember, additional restrictions can add to the back pressure seen by the blower. Therefore it is better to choose a slightly larger blower, rather than a smaller one, like in our example. Excess flow can be diverted upstream of the heater using a bleed valve, or you can buy a variable speed blower which is easy to adjust, but is more expensive. Heaters with openings smaller than 1” NPT are not recommended for use with blowers. The SureHeat JET, SureHeat MAX, Serpentine VI, 2-1/2” Inline, and Flanged Inline are suitable for use with blowers. […]

By | March 3rd, 2019|Temperature Controller|Comments Off on Selecting a Regenerative Blower for Process Heater Applications

Ensuring Safety and Efficacy in Fluid Infusion for Medical Procedures

Ensuring Safety and Efficacy in Fluid Infusion for Medical Procedures In a broad spectrum of medical procedures, infusing normothermic fluid is the key to better patient outcomes. That’s particularly true in trauma situations when quick delivery of  blood products to patients is essential for their survival. In many of these instances, medical professionals rely on portable fluid infusion devices that can warm and infuse fluids at rapid rates. […]

By | February 20th, 2019|Articles, Temperature Controller|Comments Off on Ensuring Safety and Efficacy in Fluid Infusion for Medical Procedures

Plant Intelligence…and Beer!

It is a (not so) well kept secret that we have a homemade beer machine at Sure Controls. The beer machine is always the highlight of any facility tour we give to our customers. I thought it could also be a very cool way to demonstrate some of our Plant Intelligence capabilities! A few weeks [...]

By | January 15th, 2019|Articles, Cheese, Temperature Controller|Comments Off on Plant Intelligence…and Beer!