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Setra Blog

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Dec 22, 2016 5:30:00 AM

Happy Holidays from Setra Systems

From all of us here at Setra, we wish you a very happy holiday!  We hope you enjoy the time wtih your family and friends!

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Dec 19, 2016 5:41:00 AM

Energy Savings Strategies For Operating Rooms

Operating Rooms consume a great deal of energy, considering the high airflow requirements needed, bright lighting, and significant plug load from patient care equipment. There are, however, strategies to conserve energy and still meet the stringent safety requirements of maintaining positive room pressure. Two conditions need to be met to enable OR energy savings. The first is a method to trigger occupied and unoccupied states. And the second is to act on that state change to setback both temperature and airflow.

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Dec 15, 2016 5:54:00 AM

What is overpressure and how can it be prevented?

Can’t handle the pressure?

Can you believe that pressure transducers are not always able to handle high pressure? Overpressure, or proof pressure, is a major concern for engineers and OEM designers when assembling machinery and selecting a pressure transducer. Overpressure refers to the maximum pressure value a transducer can withstand without affecting performance; it can also refer to a situation where the pressure value exceeds the limits. Although it is not ideal, pressure transducers can withstand occasional pressures up to their overpressure rating, eventually returning to their natural state. However, pressures that reach burst pressure, the maximum pressure that may be applied to the positive pressure port without physically damaging the internal sensing component, can rupture the diaphragm and cause leakage. Pressures above overpressure but below burst pressure can result in permanent diaphragm deformation, causing an output shift affecting operational performance or accuracy readings.

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Dec 12, 2016 5:21:00 AM

How To Stop Water Hammer

What is Water Hammer?

Water hammer is shock wave produced by the sudden stoppage or reduction of a fluid flow. This can cause sudden rises in pressure and damage instrumentation. In tank level measurement applications, high pressures can be generated by the sudden closure of a valve on an outlet line. Although it might seem to be a consistent flow, the water inside pipes tumbles as it moves through.

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Dec 8, 2016 5:47:00 AM

Explosion Proof & Intrinsically Safe Defined

Below are terms that are associated with use of transducers and electrical equipment in areas which are defined as hazardous by national rating agencies.

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Dec 5, 2016 6:06:00 AM

Capacitance & Inductive Pressure Sensors

Capacitive Transducers

Setra’s capacitive pressure transducers are expertly designed adaptations of a simple, durable and fundamentally stable device...the electrical capacitor. In a typical Setra configuration, a compact housing contains two closely spaced, parallel, electrically isolated metallic surfaces, one of which is essentially a diaphragm capable of slight flexing under pressure. 

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Dec 1, 2016 4:30:00 AM

Does Your Product Fall Under New RoHS2 Restrictions?

Newly Added Restricted Products Under RoHS2 Affects Manufacturing

In 2013, RoHS2 was created by the European Union legislation, nearly a decade after the original RoHS (Restriction of Hazardous Substances Directive) was implemented.  RoHS2 is merely an evolution of RoHS1 that provides greater clarity on the legal scope of products that should adhere to the hazardous material guidelines. The combination of

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Nov 28, 2016 5:58:00 AM

Proper Tank Level Measurement Ensures Project Success

Selecting the optimal method to measure liquid tank level is an extremely important decision when starting your project. Making the right choice helps ensure that both vented aboveground and in-ground tanks as well as pressurized tanks work properly. This means that homeowners will receive water for drinking, water will be available to fight fires in remote residential areas, manufacturers will maintain

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Nov 24, 2016 6:17:00 AM

The Importance of Maintaining Building Humidity

While it is important to maintain proper relative humidity levels in office buildings for worker comfort and productivity, it is also just as important to maintain proper levels in factories, production facilities and art galleries to protect industrial, commercial and artistic products.

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Nov 21, 2016 11:23:01 AM

Are Your Heating and Cooling System Test Stands Compliant?

Recently, the Department of Energy (DOE) released a new requirement that goes into effect on Jan. 1st, 2017 as part of the "Energy Conservation Program: Test Procedures for Central Conditioners & Heat Pumps.” All manufacturers of heating and cooling systems need to ensure that the AHR units they manufacture for residential and small commercial applications meet this new standard.

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