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Temperature Controller

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How to select Diaphragm Material

Sure Controls is proud to offer Dynisco products as well as repair and calibration services for them. For over 60 years, Dynisco pressure sensors have been used in various applications around the world. The original patent holder for the melt pressure sensor used in extrusion, Dynisco has remained the world class industry leader in this [...]

By | February 10th, 2020|Calibration, Process Control, Temperature Controller|Comments Off on How to select Diaphragm Material

Infrared Sensor Temperature Measurements

In many IRt/c installations, such as paint curing, web drying, printing, etc., the temperature control system must be able to accurately measure materials with a variety of colors. Ideally the same calibration set-up would be used for all colors, rather than having to calibrate each time a new color is run. Because the IRt/c measures [...]

By | January 9th, 2020|Process Control, Temperature Controller|Comments Off on Infrared Sensor Temperature Measurements

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