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Setra Blog

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Jun 22, 2017 11:25:00 AM

How to Select a Power Meter

What Are You Monitoring?

One critical consideration when searching for a proper power meter is to determine what you're measuring. Is the monitored load signal-phase, split-phase or three-phase? What voltage/current ranges are going to be monitored? 

If you're interested in a power meter for residential or light commercial applications, then typically a single or split-phase meter would be the best cho

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Jun 12, 2017 6:55:00 AM

What is a Vivarium?

To most people, the term “vivarium” conjures up the image of a small fish tank-like glass box where a pet rat or gecko lives. While this is not incorrect, vivariums in biomedical research facilities are a bit more robust than what you might see in a high school science lab.

Vivarium Defined

Vivariums are enclosed areas designed to provide a stable environment for animals and plants for observation or scientific research. Often, vivariums contain a portion of an ecosystem for a particular species with controlled environmental conditions on a smaller scale. A vivarium you would find in an academic research setting contains multiple racks of various sizes depending on the species it contains.

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Mar 23, 2017 6:19:00 AM

What is peak demand?

Looking at your electric bill can be a daunting task. There are many factors that can affect your bill’s total — factors that are only amplified in large commercial and industrial sites.

One such consideration is peak demand. Peak demand is the largest instance of power usage in a given time frame, typically a rolling fifteen minute window. Measured in kilowatts (kW), peak demand is different than consumption. Total consumption  is measured in kilowatt hours (kWh) over a given period of time (e.g. monthly, quarterly, etc.). 
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Mar 16, 2017 6:51:00 AM

What is power factor?

The power flowing through an alternating current (AC) load isn’t always pulling its full weight. Every AC circuit has some degree of non-working power as part of its total power reading and this can affect the amount of power a system is truly drawing.

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Mar 9, 2017 5:58:00 AM

How can Employees Contaminate a Clean Environment?

It is commonly known that gowning procedures and air flow requirements are essential to maintaining a sterile clean room environment. Workers and operators don’t realize how crucial employee training is and the enormous impact employees have with the sanitation of the cleanroom. Unfortunately, humans are considered to be the biggest threat to the cleanroom and the largest source for contaminants, accounting for 75% to 80% of particles and microbes generated in a room. Understanding how personnel create particles and microbes or bring in contaminants, can help structure proper employee training, greatly bringing down the risk for clean environment contamination.

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Feb 21, 2017 7:02:00 AM

Can I Put a Power Meter Inside an Electrical Panel?

Can you? Of course you can place a power meter inside an electrical panel depending on the type of power meter. The great advantage of UL61010 vs. UL508, is that UL61010 allows for a meter to be mounted inside of an electrical panel, avoiding costs of installation and additional equipment required. The 61010-1 safety standard states meters must be connected to a dedicated circuit breaker, but does not require the use of fused voltage leads is required as the circuit breaker is present to protect the wiring should an overcurrent situation oc

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Feb 13, 2017 5:42:00 AM

Why Choose Rogowski Coils?

Many electricians and contractors are moving towards using Rogowski Coils because of the time saved during installation and the reduced shipping costs for high amperage requirements. Because of the size, weight and flexibility of a Rogowski Coil, installers can save significant time and labor because of the ease of surrounding conductors of all sizes. However, what most people don’t realize is that Rogowski Coils have many technical advantages over standard split-core or “donut” CT’s which can help improve monitoring energy in different applications.

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Feb 9, 2017 6:59:00 AM

The AHR 2017 Experience

Thank you to all who visited us at Booth C1452 in the Building Automation and Controls section of the AHR Expo this year in Las Vegas, Nevada! We enjoyed seeing both new and familar faces! The world's largest HVACR event was anything but boring and we think the 60,000 attendees would have to agree.

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Jan 16, 2017 5:30:00 AM

How to use a single Power Supply to power pressure transducers

When installing a pressure transducer system selecting a power supply, may not be one of the first things that comes to your mind. Since a single power supply can be used to power multiple pressure transducers, many regard it as a non-vital task. Nonetheless, it is essential to have the proper configurations between the power source and devices in order for all components to communicate properly and to avoid receiving inaccurate data. Here are some of the best practices we found for using a single power supply to power multiple devices.

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Jan 12, 2017 6:07:00 AM

Pressure Sensor Calibration for Cleanrooms

Within a building there many applications for differential pressure transducers, but none are more critical than those measuring the pressure parameters in a cleanroom. A cleanroom is a critical area used to manufacture medications, containers, enclosures, and other medical devices that require the products to remain sterile from manufacturing through delivery to the customer. The products manufactured in these environments are used to treat and care for the general population and are handled differently than other products.

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