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Picture this: You wake up with a start to the sound of crackling flames and the screech of an alarm. A nearby apartment room has caught fire, and you need to get out before it spreads to the rest of the building. You go through the motions; grab the keys, check the door knob, keep low to the ground. You head to the stairs and make your way outside to safety.
Have you ever wondered why there are a multitude of sensor output signals that can be configured on pressure, temperature, humidity, or gas sensing instrumentation used in process or HVAC applications? Most of these offerings were originally set up to allow sensor manufacturers to better align with the inputs offered by manufacturers of programmable logic controllers (PLCs) and direct digital controllers (DDCs), which are used for controlling processes for both automation and HVAC control.
I’d like to focus on two of the most commonly used output signals and zero in on the advantages and/ or disadvantages these output signals offer. Two of the most commonly used output signals include analog current, typically 4 to 20mA, and analog voltage, typically 0-10V. Continue reading “Understanding Sensor Output Signals”
The summer is always a busy time for our team, as we check and double check the formatting and information of our annual instrumentation catalog. Now that autumn is here, we’re proud to announce that the new Dwyer Catalog is now available! Continue reading “The New Catalog is Available… Get Yours Today!”
Today starts the Capital-MarVa Recertification Seminar in Annapolis, MD. Capital-MarVa is a chapter of the National Environmental Balancing Bureau (NEBB). Continue reading “Meet with Us at Capital-MarVa”
Daily wear and tear from lifting heavy equipment, up and down ladders all day, and working in extreme temperatures. Working as an HVAC technician can be as tiresome as it is rewarding. Luckily, having the right tool for the job can make any task easier.
Dwyer® products offer the perfect balance of functionality, safety, and durability.
The SMART Air Hood® balancing instrument, Series SAH, was designed to be lightweight and easily maneuverable. Because it’s on a pole, it can be raised and lowered without extra strain on your back and shoulders. The hood can be set up on a diffuser without having to hold it in place, making it possible for a single operator to balance a branch faster than traditional teams. Continue reading “How Dwyer Helps Make TAB Easier”